Results 41 to 50 of about 31,607 (247)

Visible light-driven selective oxidative transformation of vicinal diols using ZnS-based photocatalyst in the presence of molecular oxygen

Green Chemical Engineering
The heterogeneous photocatalysis for the oxidative cleavage of C–C bond is significant to the transformation of biomass feedstock. In this work, a heterojunction photocatalyst based on the conductor ZnS and C3N4 (CN) material is prepared and employed in ...
Ruichen Liu, Miao Wang, Jiaxin Zheng, Xinli Tong   +3 more
doaj   +1 more source

Increased efficiencies on CdTe solar cells via luminescence down-shifting with excitation energy transfer between dyes

, 2012
The external quantum efficiencies of CdTe solar cells fabricated by the atmospheric pressure metal organic chemical vapour deposition (AP–MOCVD) method have been measured with one and two dye doped luminescence down-shifting (LDS) layers on top ...
S.J.C. Irvine, Markvart, T., T. Markvart, L. Danos, Irvine, S.J.C., Parel, T., Barrioz, V., Irvine, S. J. C., Brooks, William, Markvart, Tom, Parel, Thomas, Barrioz, Vincent, Brooks, W. S. M., T. Parel, Markvart, Tomas, Danos, L., V. Barrioz, Danos, Lefteris, Brooks, W.S.M., Irvine, Stuart, W.S.M. Brooks   +20 more
core   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Extremely Long Electron Lifetime in Spontaneously Passivated Polycrystalline Perovskite Layers via Illumination‐Assisted Trap Filling

Advanced Functional Materials, EarlyView.
ABSTRACT Perovskite solar cells (PSCs) are promising next‐generation photovoltaics. The high performance of PSCs is attributed to the long carrier lifetimes of perovskite photoabsorbers. However, the carrier lifetimes of polycrystalline perovskite layers, which serve as the photoabsorbers in practical PSCs, have remained limited to several tens of ...
Naoyuki Nishimura, Ryuzi Katoh, Takurou N. Murakami   +2 more
wiley   +1 more source

Direct synthesis of dimethyl carbonate from methanol and carbon dioxide over Co-Ce-Zr ternary metal solid solution

Fuel Processing Technology
To investigate highly performance catalysts for the direct synthesis of dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol, a Co0.02/Ce0.7Zr0.3O2 ternary metal solid solution nanoparticle catalyst was synthesized, demonstrating superior ...
Xin Li, Lele Cao, Dongdong Jia, Yongyue Sun   +3 more
doaj   +1 more source

Analysis of As/GaAs quantum dot solar cells using Suns-Voc measurements [PDF]

, 2014
The performance of InAs/GaAs quantum dot solar cells was investigated up to an optical concentration of 500-suns. A high temperature spacer layer between successive layers of quantum dots was used to reduce the degradation in the open circuit voltage ...
Beattie, N. S., Farrer, I., Zoppi, Guillaume, Ritchie, D. A., See, P., Zoppi, G., Morrison, D. J., Miles, R.W., Miles, R. W., Ritchie, David, Farrer, Ian, Morrison, D.J., Beattie, Neil, Beattie, N.S., Ritchie, D.A., See, Patrick, Duchamp, Martial, Morrison, Dominique, Miles, Robert, Duchamp, M.   +19 more
core   +1 more source

Phase Evolution Kinetics in Additive‐Free 19.75% Organic Photovoltaics Empowered by Solvent Vapor Annealing

Advanced Functional Materials, EarlyView.
Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv, Jieni Chen, Cenqi Yan, Patrick W. K. Fong, Jingjing Zhao, Daming Zheng, DingQin Hu, Xiaoman Ding, Xiaokang Sun, Chuanlin Gao, Guangye Zhang, Qianguang Yang, Can Zhu, Pei Cheng, Shirong Lu, Zhipeng Kan, Zhiwei Ren, Guangliu Ran, Wenkai Zhang, Hanlin Hu, Gang Li   +20 more
wiley   +1 more source

Pickering‐Engineered Microparticles for Magnetically Guided Motion and Light‐Triggered Catalysis

Advanced Functional Materials, EarlyView.
Magnetically responsive wax microparticles stabilized by hematite cubes through the Pickering emulsification strategy are developed, showing controlled size, motion, and light‐activated catalytic activity. Annealing under a magnetic field enhances their mobility and steering.
Chiara Ferlito, Ludovico Guercio, Giuseppe Cavallaro, Giuseppe Lazzara, Theodore Hueckel, Lorenzo Lisuzzo, Stefano Sacanna   +6 more
wiley   +1 more source

Preparation of Ester-Crosslinked PI Membranes with Enhanced Gas Selectivity and Plasticization Resistance

Membranes
Fabricating polyimide (PI) membranes with outstanding anti-plasticization ability and gas separation performance remains a challenge. In this study, two novel diamine monomers, DAMBO (methyl 3,5-diamino-4-methylbenzoate) and DAPGBO (3-hydroxypropyl 3,5 ...
Yu Li, Jiangzhou Luo, Honglei Ling, Song Xue   +3 more
doaj   +1 more source

3D Photoelectrode for Dye Solar Cells Realized by Laser Micromachining of Photosensitive Glass [PDF]

, 2014
An explorative dye solar cell architecture based on the implementation of a 3D micropatterned photoelectrode is disclosed here. An array of conical micropillars has been realized by laser micromachining of photosensitive glass which has been ...
Luisa De Marco, Beke, Szabolcs, Giuseppe Gigli, De Marco, Luisa, Pareo, Paola, Fernando Brandi, Michele Manca, Szabolcs Beke, Qualtieri, Antonio, Gigli, Giuseppe, Antonio Qualtieri, Alessandro Cannavale, Brandi, Fernando, Paola Pareo, CANNAVALE, Alessandro, Manca, Michele   +15 more
core   +1 more source