Graphene-based Materials Applications

🧪⚡ Graphene in Solid-State Batteries: Real Enabler or Just Additive Hype? (As of Late 2025) Solid-state batteries (SSBs) promise safer, denser (500+ Wh/kg), and faster-charging storage, but they still face big barriers: limited ionic conductivity, brittle interfaces, dendrite growth on Li-metal, and uneven cathode kinetics. Graphene — including rGO, holey graphene, and multilayer variants — isn’t replacing whole batteries with “pure graphene.” But it is becoming a powerful multifunctional additive that fixes several bottlenecks across SSB architectures. ⸻ Where Graphene Actually Helps 1. Solid Electrolytes 🛡️ • GO or rGO as fillers in polymer/ceramic electrolytes can raise ionic conductivity (≈10⁻⁴ S/cm) while improving toughness and flexibility. • 2025 studies show graphene-like carbon coatings on sulfide electrolytes (e.g., Li₆PS₅Cl) create stable electron pathways, reducing overcharge and side reactions — leading to major cycle-life boosts. 2. Cathodes ⚡ • Graphene scaffolds for sulfur/selenium in Li-S SSBs (e.g., NASA SABERS → Cerebral Energy) trap polysulfides, improve conductivity, and hit >500 Wh/kg in prototypes. • Holey or 3D graphene frameworks in NMC/LFP composites enhance Li⁺ diffusion, reduce expansion, and increase rate capability. 3. Anodes & Interfaces 🔋 • Graphene coatings on Li-metal help suppress dendrites and improve interfacial wetting. • As conductive scaffolds in silicon/Li-metal composite anodes, graphene buffers expansion and supports uniform plating. • Graphene interlayers at electrode–electrolyte interfaces reduce resistance and limit cracking. 4. Overall Wins • Safety: Non-flammable, thermally stable components. • Performance: 2–5× faster charging in hybrid designs; 90%+ capacity retention after 1000+ cycles in 2025 reports. • Flexibility: Ultra-thin SSBs with monolayer graphene on Cu foils can power LEDs even while folded. ⸻ 2025 Reality Check • Graphene isn’t the main material for SSB giants (Toyota, QuantumScape, Solid Power, Samsung). It’s usually a performance booster, not the core. • Emerging pilots: Cerebral Energy is shipping graphene-enabled SSBs for aerospace/defense (>500 Wh/kg lab results). Lyten is scaling 3D graphene–sulfur cathodes. • Key challenges persist: high-quality graphene remains costly, integration is delicate, and Li-metal SSBs still battle dendrite formation. ⸻ Verdict Graphene won’t unlock 1000-mile EVs overnight — but in 2025, it is proving to be a critical enabler. The early “graphene battery” hype was exaggerated, yet graphene is now quietly driving real gains in cycle life, safety, and power performance across SSB designs. With ongoing scaling, graphene-enhanced SSBs could reach EVs and consumer electronics in the late 2020s. Excited or skeptical? #SolidStateBatteries #Graphene #BatteryTech #EVFuture #EnergyStorage 🚀🪫 ⸻

Atomically thin semiconductors driving smart sensors with real-world impact Focusing on atomically thin semiconductors at RMIT University, we are creating the next generation of ultra-sensitive sensors and smart systems. They are smaller, faster, and more energy-efficient than ever before. Our innovation begins at the atomic scale. My colleagues and I are engineering two-dimensional (2D) semiconductors such as graphene, transition-metal dichalcogenides, and transition-metal oxides - materials only a few atoms thick yet possessing extraordinary electrical and optical tunability. These quantum-thin layers exhibit exceptional charge-carrier mobility, excitonic behaviour, and mechanical flexibility, unlocking new frontiers in wearable sensors, ultra-fast optoelectronics, and bio-integrated devices. I’m lucky to work in world-class research facilities, which serve as the backbone of innovation, enabling interdisciplinary collaboration across scales, and alongside several national research centres, including the ARC Centre of Excellence in Optical Microcombs for Breakthrough Science (COMBS) . These hubs help connect my research to a global network of experts in photonics, quantum materials, and low-energy electronics. What truly distinguishes our approach is the ability to translate atomic-scale discoveries into intelligent, connected systems. Atomically thin semiconductor devices are being integrated into Internet of Things platforms, wireless communication modules, and AI-assisted signal processors, creating systems that not only sense but also interpret and respond. These platforms enable real-time environmental monitoring, such as detecting trace gases and pollutants, as well as advanced biomedical diagnostics, where bio-field-effect transistors (bio-FETs) and photonic biosensors can identify disease biomarkers at early stages. In the energy and mobility sectors, high-mobility 2D semiconductors are driving low-power electronics and adaptive control systems for sustainable technologies. RMIT’s multidisciplinary engineering ecosystem ensures each layer, from material design to data analytics, contributes to intelligent functionality. A notable example of this multi-layered ecosystem at work is the world-first ingestible gas-sensing capsule, now commercialised by Atmo Biosciences. Incorporating nanoscale sensors, a smart processor, and a wireless transmission module, the capsule measures intestinal gases in vivo and transmits real-time data to reveal insights into gut health. It exemplifies how nanomaterial-enabled sensors can evolve into life-changing medical technologies. By uniting atomically thin materials, smart system integration, and global collaboration, my colleagues and I continue to lead in Electrical and Electronic Engineering research. We are shaping a future where every atom powers intelligent, sustainable, and connected technologies. Interested in collaborating? Get in touch: Jian Zhen Ou - RMIT University

Chinese scientists at Tsinghua University have unveiled a groundbreaking graphene-based battery that could redefine energy storage. This innovative graphene-supercapacitor hybrid charges in under 5 minutes and lasts over 10,000 cycles, far outperforming traditional lithium-ion batteries in speed, lifespan, and safety. At the heart of this technology is a graphene-laced anode paired with a carbon nanotube cathode, allowing ions to move quickly without degrading the battery structure. Unlike lithium batteries that rely on slow chemical reactions and fragile materials, this battery uses physical ion transport, making it faster, cooler, and safer. It does not swell, leak, or overheat under stress, making it ideal for high-demand applications. Lab tests showed that the battery recharged to 80 percent in just 3.2 minutes, enough to give an electric vehicle over 300 kilometers of range in the time it takes to enjoy a coffee. Even after 12,000 full charge cycles, it retained more than 90 percent of its capacity, while conventional lithium cells degrade below 70 percent in half that time. The battery also operates in extreme temperatures from -30°C to 60°C, making it suitable for electric vehicles, smartphones, aerospace, military, and off-grid energy solutions. Built without rare-earth metals or cobalt, the graphene hybrid battery addresses environmental and ethical concerns in supply chains, reducing waste and reliance on scarce resources. This breakthrough could revolutionize how we store and use energy, enabling faster charging, longer-lasting devices, and a cleaner, more sustainable future.

Here’s how a Coimbatore deep-tech startup is becoming one of India’s strongest bets in advanced materials! I am talking about Terracarb. Started in 2019 out of IIT Kanpur and based in Coimbatore, the team built a production method that finally made graphene commercially usable instead of academically interesting. Graphene is strong, highly conductive, and thermally efficient. Everyone knows it has potential. But industries could never adopt it because the basics were broken. It had to be produced consistently. Quality kept shifting from batch to batch. Scaling was expensive. And the output was too unpredictable for industrial lines. Terracarb went straight at that bottleneck. They developed a production process that kept quality stable, scalable, and aligned with ISO 21356 global norms. And once that happened, the numbers started moving, with 120 tons of annual capacity and industrial-grade dispersions ready for real manufacturing. Why does this matter? Because fixing the bottleneck unlocked adoption. ✅ Graphene could finally blend into the materials the world uses every day. Concrete gets stronger. Coatings last longer. And plastics and elastomers gain strength. ✅ Battery components move charge faster. Composites for EVs and aerospace become lighter and more durable. ✅ These are not side markets. They are the core of trillion-dollar supply chains. If India wants to lead in deep-tech, it will not happen through consumer apps. It will happen through companies that solve hard problems in materials, energy, and infrastructure. Terracarb is one example of how that future gets built. #terracarb #startups #coimbatore #tech

𝗠𝗔𝗚𝗡𝗘𝗧𝗜𝗖𝗔𝗟𝗟𝗬 𝗔𝗖𝗧𝗜𝗩𝗔𝗧𝗘𝗗 𝗚𝗥𝗔𝗣𝗛𝗘𝗡𝗘-𝗕𝗔𝗦𝗘𝗗 𝗠𝗜𝗟𝗟𝗜𝗥𝗢𝗕𝗢𝗧𝗦 𝗠𝗶𝗹𝗹𝗶𝗿𝗼𝗯𝗼𝘁𝘀, 𝗺𝗮𝗰𝗵𝗶𝗻𝗲𝘀 𝘀𝗺𝗮𝗹𝗹𝗲𝗿 𝘁𝗵𝗮𝗻 𝗮 𝗺𝗶𝗹𝗹𝗶𝗺𝗲𝘁𝗲𝗿,are showing immense potential in healthcare, particularly for performing precise tasks in confined microscopic environments like blood vessels and microfluidic channels. A recent study researchers from the Georgia Institute of Technology in collaboration with Guangdong University of Technology presents groundbreaking advancements in their 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗼𝗳 𝗴𝗿𝗮𝗽𝗵𝗲𝗻𝗲 𝗯𝗮𝘀𝗲𝗱 𝗺𝗶𝗹𝗹𝗶𝗿𝗼𝗯𝗼𝘁𝘀 𝗳𝗼𝗿 𝗱𝗿𝘂𝗴 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀. 𝗞𝗲𝘆 𝗵𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 𝗳𝗿𝗼𝗺 𝘁𝗵𝗲 𝘀𝘁𝘂𝗱𝘆: 𝗖𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲𝘀 𝗙𝗮𝗰𝗲𝗱 𝗯𝘆 𝗠𝗶𝗹𝗹𝗶𝗿𝗼𝗯𝗼𝘁𝘀: ▶ Difficulty in achieving efficient, reliable movement and precision in tracking target trajectories. ▶ High production costs and complex fabrication methods limit large-scale deployment. 🔆 𝗕𝗿𝗲𝗮𝗸𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝘄𝗶𝘁𝗵 𝗚𝗿𝗮𝗽𝗵𝗲𝗻𝗲-𝗕𝗮𝘀𝗲𝗱 𝗛𝗲𝗹𝗶𝗰𝗮𝗹 𝗠𝗶𝗹𝗹𝗶𝗿𝗼𝗯𝗼𝘁𝘀 (𝗚𝗛 𝗠𝗶𝗹𝗹𝗶𝗿𝗼𝗯𝗼𝘁𝘀): ▶ Researchers developed 𝗚𝗛 𝗺𝗶𝗹𝗹𝗶𝗿𝗼𝗯𝗼𝘁𝘀 𝘂𝘀𝗶𝗻𝗴 𝗮 𝗹𝗮𝘀𝗲𝗿-𝗶𝗻𝗱𝘂𝗰𝗲𝗱 𝗽𝗼𝗹𝘆𝗺𝗲𝗿-𝘁𝗼-𝗴𝗿𝗮𝗽𝗵𝗲𝗻𝗲 𝗰𝗼𝗻𝘃𝗲𝗿𝘀𝗶𝗼𝗻 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 that creates twisted graphene sheets for enhanced performance. ▶ The resulting structure is 𝗹𝗶𝗴𝗵𝘁𝘄𝗲𝗶𝗴𝗵𝘁, 𝘄𝗶𝘁𝗵 𝗮 𝗽𝗼𝗿𝗼𝘂𝘀 𝗺𝗶𝗰𝗿𝗼𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 𝘁𝗵𝗮𝘁 𝗽𝗿𝗼𝘃𝗶𝗱𝗲𝘀 𝗹𝗼𝘄 𝗱𝗲𝗻𝘀𝗶𝘁𝘆 𝗮𝗻𝗱 𝗵𝗶𝗴𝗵 𝗵𝘆𝗱𝗿𝗼𝗽𝗵𝗼𝗯𝗶𝗰𝗶𝘁𝘆, 𝗶𝗱𝗲𝗮𝗹 𝗳𝗼𝗿 𝗳𝗹𝘂𝗶𝗱 𝗲𝗻𝘃𝗶𝗿𝗼𝗻𝗺𝗲𝗻𝘁𝘀. ▶ Coated with nickel for magnetic control, these robots show rapid locomotion and precise drug delivery capabilities. 🔆 𝗛𝗶𝗴𝗵-𝗦𝗽𝗲𝗲𝗱 𝗙𝗮𝗯𝗿𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗖𝗼𝘀𝘁 𝗘𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝘆: ▶ Fabrication process produces 77 scaffolds per second, making large-scale production feasible. ▶ 𝗖𝗼𝘀𝘁 𝗽𝗲𝗿 𝗺𝗶𝗹𝗹𝗶𝗿𝗼𝗯𝗼𝘁 𝗶𝘀 𝗹𝗲𝘀𝘀 𝘁𝗵𝗮𝗻 $𝟬.𝟬𝟭, making these robots not only high-performing but also incredibly affordable for widespread use. 🔆 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀: ▶ Drug delivery for gastric cancer demonstrated 𝘁𝗵𝗲 𝗿𝗼𝗯𝗼𝘁𝘀’ 𝗮𝗯𝗶𝗹𝗶𝘁𝘆 𝘁𝗼 𝗻𝗮𝘃𝗶𝗴𝗮𝘁𝗲 𝘁𝗵𝗲 𝘀𝘁𝗼𝗺𝗮𝗰𝗵 𝗼𝗳 𝗮 𝗽𝗶𝗴 𝗮𝘀 𝘀𝗵𝗼𝘄𝗻 𝗶𝗻 𝘃𝗶𝗱𝗲𝗼 and deliver the anticancer drug doxorubicin hydrochloride (DOX-HCl) precisely. ▶ Drug release was triggered by near-infrared (NIR) irradiation, a non-contact method that ensures targeted treatment. ▶ Potential future applications include treatment of other internal organs, pollutant cleaning, and real-time sensing in medical diagnostics. These graphene-based millirobots could revolutionize medical treatments, offering a powerful combination of versatility, scalability, and cost-effectiveness. #Graphene 

LIGHT-DRIVEN PROPULSION OF GRAPHENE AEROGELS IN MICROGRAVITY Understanding how ultralight materials respond to light under reduced gravity is essential for developing future propellant‑free spacecraft technologies. Microgravity—achieved naturally in orbit or artificially during parabolic flights—provides a unique environment where weight and normal‑force friction are effectively removed, allowing subtle photothermal forces to dominate. During a parabolic flight, an aircraft follows repeated steep arcs, producing ~20‑second windows of near‑weightlessness with residual accelerations as low as 10⁻²–10⁻³ g. These conditions enable precise measurements of light‑induced motion that are otherwise masked on the ground. Graphene aerogels are ideal candidates for such studies. Built from a 3D network of graphene sheets, they combine extreme lightness (densities as low as 0.00016 g/cm³), high porosity, mechanical resilience, and strong thermal responsiveness. Their parent material—single‑layer graphene—exhibits exceptional thermal conductivity (up to 5000 W/mK), high stiffness (Young’s modulus ~1 TPa), and remarkable tensile strength. These properties make graphene aerogels uniquely suited for converting absorbed light into mechanical work. Over the past decade, researchers have uncovered a spectrum of light‑driven behaviors in graphene and related materials: ion‑trap levitation, magnetic‑field‑modulated motion, bulk propulsion of graphene sponges, radiometric forces, Knudsen pumping, and nanoscale bubble actuation. Together, these studies established that graphene can translate, rotate, or accelerate when illuminated—through mechanisms ranging from angular momentum transfer to photothermal gas‑flow forces. Recent experiments used 10 × 10 × 5 mm aerogel samples (density ~0.01 g/cm³) placed in a vacuum chamber (~10⁻⁴ mbar) and illuminated with a 532 nm, 5 W laser. High‑speed imaging captured their motion across gravitational regimes. In microgravity, the aerogels exhibited rapid, strong propulsion: 50 mm displacement in 0.05 s Peak velocity ~1.7 m/s Accelerations >100 m/s² Initial thrust pulse ~0.6 mN within 30 ms Under 1 g, the same samples showed strongly suppressed motion: ~15 mm displacement at ~0.16 s ~0.06 m/s peak velocity ~11 µN thrust Removing gravitational load reveals the full magnitude of optically induced forces in these ultralow‑density networks. The results also show that propulsion depends non‑monotonically on aerogel density, with intermediate architectures producing the strongest thrust. By directly comparing distance, velocity, and transient thrust across microgravity and ground conditions, this study establishes the first quantitative benchmarks for light‑driven propulsion in reduced gravity. These findings support future concepts in propellant‑free spacecraft technologies, laser‑driven micro‑thrusters, attitude‑control systems for small satellites, and ultralight graphene‑based solar sails. # https://lnkd.in/eNta253X

Rewritable recyclable 'smart skin' monitors biological signals on demand. Penn State University researchers recently developed an adhesive sensing device that seamlessly attaches to human skin to detect and monitor the wearer’s health. The writable sensors can be removed with tape, allowing new sensors to be patterned onto the device. May 30, 2024. Excerpt: The details of the smart skin, including how it can be efficiently reprogrammed to detect various signals and even recycled, were published in Advanced Materials (enclosed). The paper was included in the “Rising Stars” series, which is coordinated by multiple journals to highlight work by early career researchers around the world. The researchers also filed a provisional patent application. “Despite significant efforts on wearable sensors for health monitoring, there haven’t been multifunctional skin-interfaced electronics with intrinsic adhesion on a single material platform prepared by low-cost, efficient fabrication methods,” said co-corresponding author Huanyu “Larry” Cheng, the James L. Henderson, Jr. Memorial Associate Professor of Engineering Science and Mechanics in the Penn State College of Engineering. “This work, introduces a skin-attachable, reprogrammable, multifunctional, adhesive device patch fabricated by simple and low-cost laser scribing.” Cheng explained conventional fabrication techniques for flexible electronics can be complicated and costly, especially as sensors built on flexible substrates, or foundational layers, are not necessarily flexible themselves. The sensor’s rigidity can limit the flexibility of the entire device. Cheng’s team previously developed biomarker sensors using laser-induced graphene (LIG), which involves using a laser to pattern 3D networks on a porous, flexible substrate. The interactions between the laser and materials contained in the substrate produce conductive graphene. “To address these challenges, it is highly desirable to prepare porous 3D LIG directly on the stretchable substrate,” said co-author Jia Zhu, who graduated with a doctorate in engineering science and mechanics from Penn State in 2020 and is now an associate professor at the University of Electronic Science and Technology of China. The researchers achieved this goal by making an adhesive composite with molecules called polyimide powders that add strength and heat resistance and amine-based ethoxylated polyethylenimine — a type of polymer that can modify conductive materials — dispersed in a silicone elastomer, or rubber. The stretchable composite not only accommodates direct 3D LIG preparation, but also its adhesive nature means it can conform and stick to non-uniform, changeable shapes — like humans. Note: “We would like to create the next generation of smart skin with integrated sensors for health monitoring — along with evaluating how various treatments impact health — and drug delivery modules for in-time treatment,” Cheng said.

MIT Researchers Unlock Superfluid Stiffness in ‘Magic-Angle’ Graphene, Boosting Quantum Computing Prospects For the first time, MIT scientists have measured superfluid stiffness in magic-angle graphene, a discovery that reveals its potential as a superconductive material and a key building block for future quantum computers. This breakthrough, described in an MIT press release, could help harness graphene’s unique properties for advanced electronic and quantum technologies. What Makes ‘Magic-Angle’ Graphene Special? • Graphene’s Exceptional Properties: • Graphene is a single-atom-thick sheet of carbon, known for its high electrical conductivity, thermal properties, and incredible strength. • It has rapidly become a material of choice for electronics, energy storage, and materials science. • The Magic Angle Effect: • When two sheets of graphene are stacked and twisted at a precise angle (~1.1°), the material forms magic-angle twisted bilayer graphene (MATBG). • This configuration introduces superconductivity, where electrical resistance disappears, making MATBG a promising candidate for ultra-efficient electronics and quantum computing. • What is Superfluid Stiffness? • Superfluid stiffness measures how easily electron pairs can flow without resistance, a key indicator of robust superconductivity. • MIT researchers found that MATBG allows electrons to form a superfluid, eliminating their usual repulsive interactions. Why This Matters for Quantum Computing • Stable, High-Performance Qubits: Superconducting materials like MATBG could enable more stable qubits, reducing quantum decoherence and enhancing processing power. • Energy-Efficient Electronics: If scaled, graphene superconductors could lead to low-power quantum processors with far greater efficiency than silicon-based chips. • Revolutionizing Material Science: Measuring superfluid stiffness in graphene allows scientists to fine-tune its properties, optimizing it for quantum circuits and advanced superconductors. What’s Next? • Expanding Research on MATBG for Quantum Devices: Scientists will explore how superfluid stiffness impacts quantum coherence and how it can be leveraged in quantum computers. • Potential Integration into Superconducting Quantum Processors: If graphene-based superconductors prove viable, they could replace traditional materials in quantum chips, making them more efficient and scalable. • Further Studies on Magic-Angle Materials: Researchers may investigate other twisted 2D materials that could exhibit even stronger superconducting properties. This landmark discovery at MIT brings us one step closer to unlocking graphene’s full potential, marking a major step forward in superconductivity and quantum computing research.

🧠 Light that teaches neurons 🧐 A team has just developed the foundation of a control knob for neurotech: clean inputs, rich outputs without gene editing. They've demonstrated how to steer neural activity with light + graphene. Their platform, GraMOS, converts light into tiny electrical nudges at the cell–graphene interface—gentle, precise, and repeatable. In long-term studies, this sped up maturation of stem-cell–derived neurons and brain organoids, revealed Alzheimer’s-related activity changes in patient models, and even drove a robot using brain-organoid signals. 🤓 Geek mode Graphene’s π-electron system absorbs broadband visible light and spawns “hot” carriers. At the electrolyte–graphene–membrane junction, those carriers induce capacitive depolarization—enough to trigger or modulate spiking without opsins or implants. The figure in the paper sketches this cascade, from Dirac cones to a depolarizing membrane; it’s capacitive, not thermal or chemical. Measurements show photocurrent scales with light intensity and graphene layer count, while temperature and pH stay flat during stimulation—strong evidence the effect isn’t heating. In neuronal prep, the authors used ~70–80% optical transmittance (~10 ± 2 layers) on coverslips; repeated optical programs guided network maturation over weeks, flagged functional shifts in Alzheimer’s stem-cell models, and routed organoid activity to control a robot in real time. 💼 Opportunities for VCs 🤖 Biohybrid robotics & interfaces: organoid-to-machine control loops for autonomy research and embodied AI testbeds. 🧪 Organoid-based drug discovery: high-throughput, non-genetic stimulation to benchmark circuit maturation and disease phenotypes in human models. ⚕️ Adjunct neuromodulation devices: graphene light-pads for precise, localized stimulation in vitro first; pathway to minimally-invasive, device-class therapies. 🌍 Humanity-level impact If we can shape neural development and probe disease without rewriting genomes, we lower bio-risk and broaden access. Standards built on optoelectronics—not viral vectors—could accelerate safer neurotherapies, speed patient-specific testing, and open new classes of living machines that we can interrogate, align, and ultimately trust. 📄 Original study: https://lnkd.in/gHFYscXZ #Neurotech #Graphene #Organoids #AlzheimersResearch #BiohybridRobotics #DeepTech #VentureCapital #RegenerativeMedicine

【Porous graphdiyne composite-based wearable triboelectric nanogenerator for energy harvesting and multifunctional self-powered sensing】 Chemical Engineering Journal (IF 13.2) Pub Date : 2026-01-10 , DOI:10.1016/j.cej.2026.172844 Exploring new materials is crucial for advancing wearable triboelectric nanogenerators (TENGs) to fulfill the increasing demand for high performance and multifunctionality. While two-dimensional (2D) materials have demonstrated their effectiveness as triboelectric layers through charge trapping, graphdiyne—a material with exceptional physicochemical properties—along with its composites, remains underexplored in energy harvesting and sensing. Herein, thin, porous graphdiyne and graphdiyne oxide composite films were fabricated through a facile casting and solvent extraction method, and the associated TENG devices achieve the highest peak power density of 4.35 W/m2, outperforming most existing 2D material composite-based counterparts. Notably, the device demonstrates remarkable long-term stability, enduring over 22,000 cycles without any decline in voltage. Moreover, this wearable TENG shows considerable versatility; when integrated into a face mask, it effectively functions as a self-powered respiratory sensor capable of speech recognition and monitoring breathing status. It also serves as a bending sensor for Morse code detection. By harnessing the unique physicochemical properties of the porous composite films, the devices exhibit capacities for volatile organic compounds detection. https://lnkd.in/gBnjNB8A