Results 121 to 130 of about 118,273 (367)

Application of crystalline silicon surface oxidation to silicon heterojunction solar cells [PDF]

, 2015
We study the effect of ultra-thin oxide (SiO_x) layers inserted at the interface of silicon heterojunction (SHJ) solar cells on their open-circuit voltage (V_). The SiO_x layers can be easily formed by dipping c-Si into oxidant such as hydrogen peroxide (
Koichi Higashimine, Higashimine, Koichi, Takafumi Oikawa, Keisuke Ohdaira, Hideki Matsumura, Matsumura, Hideki, Oikawa, Takafumi, Ohdaira, Keisuke   +7 more
core   +1 more source

Interfacial Acid Sites‐Mediated ZnO‐Based Electrocatalysts for Sustainable Dual‐Pathway H2O2 Production and Rechargeable Zn‐H2O2 Electrochemical Cell

Advanced Materials, EarlyView.
In this work, a synergistic strategy introduces interfacial acid sites, oxygen vacancies, and built‐in electric field into ZnSe/ZnO heterojunction to optimize its electronic structure and electrode micro‐environment. This overcomes sluggish oxygen reduction reaction kinetics and low H2O2 selectivity, achieving record H2O2 productivity (754.4 M gcat−1 ...
Lijun Yang, Sitong Liu, Wencheng He, Fengzhan Sun, Shubing Bi, Hongge Pan, Lingfeng Zhu, Tianyi Ma, Lei Zhang   +8 more
wiley   +1 more source

Long-wavelength light emission from self-assembled heterojunction quantum dots [PDF]

, 2008
The authors report the optical characteristics of GaSb/InAs/GaAs self-assembled heterojunction quantum dots (QDs). With increasing GaSb deposition, the room temperature emission wavelength can be extended to 1.56 mu m.
Xu, YQ, Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, POB 912, Beijing 100083, Peoples R China. 电子邮箱地址: yingqxu@semi.ac.cn, Xu, YQ, Tang, B, Ren, ZW, Hao, RT, Zhou, ZQ, Niu, ZC   +6 more
core  

From Behavior to Dynamics: Decoding Carrier Roles in Cu‐based Photocathodes for Solar‐Driven CO2 Reduction

Advanced Materials, EarlyView.
The performance of Cu‐based photocathodes in photoelectrochemical CO2 reduction is not governed by catalytic sites alone, but by the dynamic journey of photogenerated carriers. This review decodes how carrier generation, recombination, transport, accumulation, extraction, and electrolyte coupling shape catalytic activity, selectivity, and stability ...
Yi‐Cheng Wang, Chenyu Xu, Peng‐Fei Sui, Yi Liu, Xiaolei Wang, Jing‐Li Luo   +5 more
wiley   +1 more source

Ambient Light‐Activatable Luminescent Particle‐Embedded Conformal Patch for Photochemical Tissue Bonding and Photobiomodulated Healing

Advanced Materials, EarlyView.
We report a wearable photonic patch integrating room light‐ and sunlight‐activatable luminescent particles (RSLPs) for both photochemical tissue bonding and photobiomodulation. RSLPs harvest ambient light and emit red luminescence to drive chlorin e6–mediated collagen crosslinking.
Kyungjoo Jo, Seong‐Jong Kim, Seung Oh Jung, Kyeongtaek Lee, Mungu Kim, Kwanghyeon Park, Yewon Seo, Boram Park, Dongchul Jo, Jongshin Kim, Jin Huh, Hyemin Kim, Sei Kwang Hahn   +12 more
wiley   +1 more source

Ligand‐Mediated Shape Engineering of SWIR InAs Colloidal Quantum Dots for Photodetector Applications

Advanced Materials, EarlyView.
The table of contents: A robust ligand‐engineering strategy is introduced for SWIR InAs CQDs synthesized from amino‐arsine precursors. Bulky OA ligands induce controlled shape evolution, allowing access to >1700 nm absorption under mild conditions. Halide‐based inkification enables photodetectors with 19.1% EQE at 1300 nm and detectivity exceeding 1010
Taewan Kim, Jae Taek Oh, Hao Wu, Marta Martos Valverde, Debranjan Mandal, Gerasimos Konstantatos   +5 more
wiley   +1 more source

Lateral multilayer/monolayer MoS2 heterojunction for high performance photodetector applications

Scientific Reports, 2017
Inspired by the unique, thickness-dependent energy band structure of 2D materials, we study the electronic and optical properties of the photodetector based on the as-exfoliated lateral multilayer/monolayer MoS2 heterojunction.
Mengxing Sun, Dan Xie, Yilin Sun, Weiwei Li, Changjiu Teng, Jianlong Xu   +5 more
doaj   +1 more source

Fabricating built-in electric field in fully enclosed carbon nitride/Fe-based MIL heterojunction for efficient CO2 photoreduction [PDF]

Designing structures such as heterojunctions to establish built-in electric fields, introduces inherent driving forces for charge separation and migration. The partial surface contact in the current g-C3N4/MIL-88B(Fe) heterojunction composites limits the
Ge, Lei, Yin, Jianheng, Chen, Liang, Lyu, Ziying, Wu, Tenghu, Shen, Shigang, Wang, Wenjing, Zhao, Kun   +7 more
core   +1 more source

Decoupling Activation and Preservation: Architectural Design Principles of Organic Frameworks for Selective Photocatalytic Methane Oxidation

Advanced Materials, EarlyView.
Selective methane (CH4) photooxidation emerges from architectural decoupling of activation and preservation. Programmable organic semiconductor frameworks spatially organize oxidative flux and intermediate residence, separating reaction zones from product domains to synchronize activation strength with stabilization and establish a selective oxidation ...
Minxian Zhang, Jie He, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Solvent‐Guided Chiral Assemblies and Chemical Doping of OEG‐Functionalized Conjugated Polymers

Advanced Materials, EarlyView.
Solvent‐dependent aggregation pathways dictate whether conjugated polymers form chiral lyotropic liquid‐crystalline assemblies or achiral packed aggregates. Mapping solvent‐controlled β₁ and β2 states reveals that weaker backbone association favors β₁ aggregates and reorganizable twisted mesophases, whereas stronger backbone association favors β2 ...
Sanghyun Jeon, Justin Scott Neu, Nahyun Ahn, Ayse Senlik, Yen‐Chi Chen, Pravini S. Fernando, Priyotosh Bairagya, Chetan Kumar Prasad, Janice Mihyun Baek, Wei You, Ying Diao   +10 more
wiley   +1 more source