Results 81 to 90 of about 3,551 (254)

Covalently Locked Donor–Acceptor Block Copolymer Nanoparticles Enable Efficient, Stable and Reproducible Photocatalytic Hydrogen Evolution

Advanced Energy Materials, EarlyView.
To overcome the efficiency–stability trade‐off of traditional donor:acceptor blends, covalently locked all‐conjugated block copolymer nanoparticles are developed for solar hydrogen production. This strategy achieves an outstanding HER rate exceeding 120 mmol cm−2 g−1 h−1, alongside exceptional operational stability (95% retention after 96 h) and high ...
Alexandre Holmes, Qiaonan Chen, Rafael Bicudo Ribeiro, Leandro R. Franco, Soumi Roy, Linnea Lind, Xiaoman Bi, Mateus Bergami, Mathis Mortensen Brette, Lunjie Zeng, Eva Olsson, Bo Albinsson, Márcio T. do N. Varella, C. Moyses Araujo, Ergang Wang   +14 more
wiley   +1 more source

Photoluminescence, modulation spectroscopy and surface photovoltage characterization of quaternary Zn1-x-yCdxMgySe compounds

Moldavian Journal of the Physical Sciences, 2011
An optical characterization of wurtzite Zn1-x-yCdxMgySe crystalline alloys grown by the modified high-pressure Bridgman method has been carried out by temperature-dependent photoluminescence (PL) and contactless electroreflectance
Dumcenco, Dumitru, Levcenco, Sergiu, Huang, Ying-Sheng, Firszt, F., Hsu, H, Tiong, Kwong-Kaw   +5 more
doaj  

Coupled Photocatalytic Hydrogen Production With Selective Biomass Valorization via Active Sites Construction and Electron Transport Channels Engineering

Carbon Energy, EarlyView.
A ternary CdS/1T‐WS2/CNTs heterojunction is in‐situ constructed via hydrothermal method, which is used for photocatalytic biomass reforming (biomass‐derived alcohols, lignin). It exhibits outstanding performance: H2 production rate of 26.17 mmol/g/h for benzyl alcohol (BA), benzaldehyde (BD) generation rate of 8.29 mmol/g/h, 90.06% BD selectivity, 100%
Ermiao Liang, Yi Li, Xue Liu, Ke Cheng, Baoqi Li, Mingcong Xu, Sha Luo, Chunhui Ma, Zhijun Chen, Zupeng Chen, Shouxin Liu, Wei Li   +11 more
wiley   +1 more source

A Standardizable Laboratory‑Scale Device for the Harmonization of Photoelectrochemical Experimental Procedures in Solar Redox Flow Cells

Carbon Energy, EarlyView.
This work introduces UniFlowCell, a compact solar redox flow cell (SRFC) designed to harmonize experimental procedures and benchmarking. It minimizes efficiency losses, supports long‐term operation, and performs measurements under various electrode/illumination conditions.
Telmo da Silva Lopes, Paula Dias, Adélio Mendes   +2 more
wiley   +1 more source

Engineering Halide Perovskites With Chalcogen‐Based Compounds: Insights Into Stability, Interfaces, and Device Integration

Carbon Energy, EarlyView.
Chalcogen‐based compounds are explored as versatile tools to enhance the stability and performance of halide perovskites. Their roles in defect passivation, ion migration suppression, and interface engineering are analyzed, along with impacts on device efficiency.
Atanu Jana, Deblina Das, Sourav Mal, Tarak Nath Mandal, Sangeun Cho   +4 more
wiley   +1 more source

Multiple Synergistic Effects Enabling Efficient Kesterite Solar Cells via Introducing a Cu2O‐Bi2O3 Sacrificial Interlayer

Carbon Energy, EarlyView.
The Cu2O‐Bi2O3 thin film as a sacrificial interlayer at the back contact of kesterite solar cells achieves multiple synergistic optimizations in bulk defects, interface defects, back‐contact band offset, and MoSe2 properties. This enhances carrier separation, suppresses interface recombination, and enables DMSO‐processed kesterite devices to reach a ...
Guonan Cui, Letu Siqin, Yanchun Yang, Lulu Bai, Yanqing Liu, Zhihui Gong, Yuze Sun, Xu Wang, Junjie Bao, Haifeng Lu, Yongjun Cao, Shuyu Li, Chengjun Zhu   +12 more
wiley   +1 more source

Synergistic Regulation of Defect Density and Electronic Structure in Zr‐Metal‐Organic Frameworks via Selective Ligand Pyrolysis for Efficient Photocatalytic Biomass Conversion

Carbon Energy, EarlyView.
This work synergistically regulates the electronic structure, active sites, and carrier dynamics of MOFs through defect engineering, providing a new paradigm for designing high‐efficiency photocatalysts for liquid biomass conversion and promoting the development of sustainable biofuel technologies.
Lin Ban, Heng Zhou, Kun Liu, Qiong Yan, Heng Zhang, Haishun Du, Chuanling Si   +6 more
wiley   +1 more source

Solar‐driven co‐evolution of H2 and H2O2 from pure water splitting over emerging photocatalysts: Detailed mechanism and future outlook

PhotoMat, EarlyView., 2023
Photocatalytic water splitting for co‐evolution of H2 and H2O2 is deemed as a sustainable and promising strategy to address energy and environment issues, thus receiving increasing attention and realizing continuous achievements. This review aims to offer a deep understanding of the mechanism for H2 and H2O2 co‐evolution and the design principle of ...
Qiaohong Zhu, Jiaqi Wu, Mengmeng Du, Ning Zhang, Bocheng Qiu   +4 more
wiley   +1 more source

Co‐Doping Approach for Enhanced Electron Extraction to TiO2 for Stable Inorganic Perovskite Solar Cells

Small Science
Inorganic perovskite CsPbI3 solar cells hold great potential for improving the operational stability of perovskite photovoltaics. However, electron extraction is limited by the low conductivity of TiO2, representing a bottleneck for achieving stable ...
Thomas W. Gries, Davide Regaldo, Hans Köbler, Noor Titan Putri Hartono, Steven P. Harvey, Maxim Simmonds, Chiara Frasca, Marlene Härtel, Gennaro V. Sannino, Roberto Félix, Elif Hüsam, Ahmed Saleh, Regan G. Wilks, Fengshuo Zu, Emilio Gutierrez‐Partida, Zafar Iqbal, Zahra Loghman Nia, Fengjiu Yang, Paola Delli Veneri, Kai Zhu, Martin Stolterfoht, Marcus Bär, Stefan A. Weber, Philip Schulz, Jean‐Baptiste Puel, Jean‐Paul Kleider, Eva Unger, Qiong Wang, Artem Musiienko, Antonio Abate   +29 more
doaj   +1 more source

Studies of NO₂ Gas-Sensing Characteristics of a Novel Room-Temperature Surface-Photovoltage Gas Sensor Device. [PDF]

Sensors (Basel), 2020
Kwoka M, Szuber J.
europepmc   +1 more source