A5059877132- Carbon Nanotubes in Composites
- Graphene research and applications
- Thermal Radiation and Cooling Technologies
- Nanowire Synthesis and Applications
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Advanced Materials and Mechanics
- Heat Transfer and Boiling Studies
- Advanced Thermodynamics and Statistical Mechanics
- Quantum Electrodynamics and Casimir Effect
- Molecular Junctions and Nanostructures
- Supercapacitor Materials and Fabrication
- Metamaterials and Metasurfaces Applications
- Solar-Powered Water Purification Methods
- Civil and Geotechnical Engineering Research
- Silicon Nanostructures and Photoluminescence
- Adsorption and Cooling Systems
- Drilling and Well Engineering
- Phase Change Materials Research
- Fullerene Chemistry and Applications
- Reservoir Engineering and Simulation Methods
- Organic Electronics and Photovoltaics
- Electrohydrodynamics and Fluid Dynamics
- Heat Transfer and Optimization
- Semiconductor materials and interfaces
Shanghai Jiao Tong University
2019-2025
Massachusetts Institute of Technology
2016-2021
American Institute of Aeronautics and Astronautics
2019
The University of Tokyo
2013-2017
Shandong University
2009-2010
Organic solar cells have been regarded as a promising electrical energy source. Transparent and conductive carbon nanotube film offers an alternative to commonly used ITO in photovoltaics with superior flexibility. This communication reports nanotube-based indium-free organic their flexible application. Direct dry deposited doped MoO(x) functions electron-blocking transparent electrode, its performance is enhanced further by overcoating withPSS. The single-walled cell this work shows power...
Abstract Thermophotovoltaics (TPVs) is a promising energy conversion technology which can harvest wide‐spectrum thermal radiation. However, the manufacturing complexity and instability of nanophotonic absorber emitter, are key components TPV devices, significantly limit their scalability practical deployment. Here, tungsten–carbon nanotube (W‐CNT) composite photonic crystals (PhCs) exhibiting outstanding spectral angular selectivity photon absorbance emission presented. The W‐CNT PhCs...
We synthesized randomly percolated and vertically aligned single-walled carbon nanotubes (SWNTs) with tunable subnanometer diameters (0.7–0.9 nm) on quartz substrates by Cu-anchored Co catalysts.
Passive oxide layers on metal substrates impose remarkable interfacial resistance for electron and phonon transport. Here, a scalable surface activation process is presented the breakdown of passive layer formation nanowire/nanopyramid structured surfaces substrates, which enables high-efficiency catalysis high-crystallinity carbon nanotubes (CNTs) direct integration CNT–metal hierarchical architectures with flexible free-form configurations. The architecture facilitates dielectric...
This study reports a scalable and room‐temperature solid‐state redox functionalization process for single‐walled carbon nanotubes (SWNTs) with instant efficacy high stability. By drop‐casting/spin‐coating CuCl 2 /Cu(OH) colloidal ethanol solution onto SWNT films, the sheet resistance of films achieves 69.4 Ω sq −1 at 90% transparency without noticeable increase more than 12 months. The charge transfer mechanism between SWNTs is revealed by Raman X‐ray photoelectron spectroscopies....
By using the excellent optical and electrical properties of pristine SWNTs with long bundle lengths, we present single-walled carbon nanotube–silicon (SWNT/Si) solar cells 11% power conversion efficiency (PCE), prepared without doping. The PCEs fabricated even increased slightly after 10 months exposure to ambient conditions, any external protection. open-circuit voltage SWNT/Si under low light intensities, down mW cm−2, demonstrated characteristics ideal p–n junction model. mechanism was...
We propose a water vapor treatment to direct the formation of single-walled carbon nanotubes (SWNTs) into self-assembled microhoneycomb network (μ-HN) for application SWNT-Si solar cells. The μ-HN consists vertical aggregated SWNT walls and buckypaper bottom. This hierarchical structure exhibits lower sheet resistance higher optical transmittance compared with buckypaper. pristine cell shows record-high fill factor 72% as well power conversion efficiency (PCE) 6% without optimizing diameter...
Seasonal thermal energy storage within organic phase change materials (PCMs) offers a promising way to solve intermittency of renewable energy, but the charged PCMs tend undergo spontaneous crystallization and lose stored latent heat cold environment during storage. Herein, we report introduction alkali hydroxides into sugar alcohols increase activation barrier for liquid-to-solid transition stabilize supercooling state, thereby realizing long-term Owing increased intermolecular hydrogen...
Thermophotovoltaic (TPV) generators provide continuous and high-efficiency power output by utilizing local thermal emitters to convert energy from various sources radiation matching the bandgaps of photovoltaic cells. Lack effective guidelines for emission control at high temperatures, poor stability, limited fabrication scalability are three key challenges practical deployment TPV devices. Here we develop a hierarchical sequential-learning optimization framework experimentally realize 6″...
Free-form metasurfaces with superimposed transformative meta-atoms provide a versatile platform to realize cross-band thermal emission control. However, design and manufacturing of free-form is extremely challenging, owing the complex fractal sub-wavelength topology. Here, we address these two issues by proposing an explainable deep-learning Bayesian optimization (DeepBO) framework library fabrication-friendly, different light–matter interaction bandwidths. The DeepBO requires only 50...
Abstract Synthesis of low‐dimensional carbon nanomaterials such as nanotubes (CNTs) is a key driver for achieving advances in energy storage, computing, and multifunctional composites, among other applications. Here, we report high‐yield thermal chemical vapor deposition (CVD) synthesis CNTs catalyzed by reagent‐grade common sodium‐containing compounds, including NaCl, NaHCO 3 , Na 2 CO NaOH, found table salt, baking soda, detergents, respectively. Coupled with an oxidative dehydrogenation...
Abstract Broadband, omnidirectional light absorption in the infrared range is critical for emerging aerospace and ground applications, such as machine vision, autonomous vehicle technology, telescope. Broadband absorbers (BBAs) need to possess strong through thin structures high signal‐to‐noise ratios, well manufacturing scalability service reliability harsh environment practical applications. Such requirements rule out many known absorbing materials carbon nanotubes that are intrinsically...
Development of a refractory selective solar absorber (RSSA) is the key to unlock high-temperature thermal and thermochemical conversion. The fundamental challenge RSSA lack design fabrication guidelines simultaneously achieve omnidirectional, broadband absorption sharp spectral selectivity at desired cutoff wavelength. Here, we realize ruthenium-carbon nanotube (Ru-CNT) nanocomposite with multiscale nanoparticle-on-nanocavity plasmonic modes. Ru conformally coated on sidewalls CNTs enables...
Capillary-mediated densification is an inexpensive and versatile approach to tune the application-specific properties packing morphology of bulk nanofiber (NF) arrays, such as aligned carbon nanotubes. While NF length governs elasto-capillary self-assembly, geometry cellular patterns formed by capillary densified NFs cannot be precisely predicted existing theories. This originates from recently quantified orders magnitude lower than expected array effective axial elastic modulus (E), here we...
Vertically aligned carbon nanotubes (CNTs)—also called CNT forests—are attractive for use in battery electrodes, capacitive sensors, thermal interface materials, and many other applications. However, practical most cases, the forest must be dense have mechanically robust, low-resistance electrical contact with substrate. Fulfilling those requirements is often challenging, particularly when copper used as substrate material. Herein, we report production of tall (270 μm maximum height) forests...
Bundling of single-walled carbon nanotubes (SWCNTs) significantly undermines their superior thermal and electrical properties. Realizing stable, homogeneous, surfactant-free dispersion SWCNTs in solvents composites has long been regarded as a key challenge. Here, we report amine-containing aromatic cyclohexane molecules, which are common chain extenders (CEs) for epoxy curing industry, can be used to effectively disperse CNTs. We achieve single-tube-level CE solvents, demonstrated by the...