Results 31 to 40 of about 2,968 (186)

Rapid Cooling After Device Annealing Suppresses Interface Losses in Cu2ZnSnS4 Solar Cells Enabling High Efficiency and Stability

Advanced Science, EarlyView.
Rapid cooling after device annealing regulates the CdS/CZTS heterojunction and Mo/CZTS back contact, suppressing interfacial recombination and modifying the interfacial MoS2 layer, thereby enabling a 15.9% indoor PCE in pure‐sulfide CZTS solar cells.
Achmad Nasyori, Mati Danilson, Idil Mengü, Maris Pilvet, Jüri Krustok, Reelika Kaupmees, Valdek Mikli, Raavo Josepson, Yuancai Gong, Akhil Alexander, Shreyash S. Hadke, Aurelian Catalin Galca, Paola Vivo, Lydia Helena Wong, Thomas Unold, Maarja Grossberg‐Kuusk, Marit Kauk‐Kuusik   +16 more
wiley   +1 more source

Experimental characterization of chalcopyrite ball mill grinding processes in batch and continuous flow processing modes to reduce energy consumption

Journal of Materials Research and Technology, 2021
A mineralogy, rheology, and energy consumption-based experimental characterization of chalcopyrite ball mill grinding processes, in both batch and continuous flow processing modes, is carried out in this work.
Cesar Celis, Antonios Antoniou, Julio Cuisano, Adolfo Pillihuaman, Danmer Maza   +4 more
doaj   +1 more source

Boosting Bifacial Output Power of Ag‐CIGS Solar Cells by Optimizing ITO Back‐Contact Thickness for Tandem Applications

Carbon Energy, EarlyView.
Optimized ITO back contact with pre‐Ga supply growth and Ag incorporation suppresses GaOx formation and interface recombination in bifacial CIGS solar cells. The devices achieve 17.25% front and 5.77% rear efficiency, delivering record bifacial power density up to 32.26 mW cm−2 in 4T perovskite/CIGS tandem architectures under enhanced albedo ...
Amanat Ali, Dae‐Ho Son, Wook Hyun Kim, Hyo Jeong Jo, Dong‐Hwan Jeon, Won‐Joon Kim, Van‐Quy Hoang, Jaebaek Lee, Bashiru Kadiri‐English, Jin‐Kyu Kang, Kee‐Jeong Yang, Shi‐Joon Sung, Dae‐Kue Hwang, Dae‐Hwan Kim   +13 more
wiley   +1 more source

Effect of Galvanic Interactions Between Grinding Media and Sulfide Minerals on Flotation Kinetics of Chalcopyrite [PDF]

Muhandisī-i manābi̒-i ma̒danī
Although the flotation separation of sulfides and their electrochemical interactions have been examined in some investigations, study the direct relationship between the flotation kinetics of sulfides and their galvanic interactions during the process ...
E. Ravanasa, Gh. Karimi, R. Ahmadi
doaj   +1 more source

A scanning electrochemical microscopy (SECM) study of the interfacial solution chemistry at polarised chalcopyrite (CuFeS2) and chalcocite (Cu2S)

Electrochemistry Communications, 2020
Chalcopyrite (CuFeS2) passivation during hydrometallurgical copper extraction is attributed to multiple competing mechanisms that are still not completely understood.
Rahul Ram, Victoria E. Coyle, Alan M. Bond, Miao Chen, Suresh K. Bhargava, Lathe A. Jones   +5 more
doaj   +1 more source

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

Chemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel, Lucas Thumeyer, Ebbe H. Hartz, Håvard Hallås Stubseid, Peter Fröhlich, Martin Bertau   +5 more
wiley   +1 more source

Flotation behaviors of chalcopyrite and galena using ferrate (VI) as a depressant

International Journal of Mining Science and Technology, 2023
This paper investigated the effects of potassium ferrate (PF) on the flotation performances of chalcopyrite and galena. The flotation results showed that PF obviously depressed galena, but had little effects on the floatability of chalcopyrite within pH ...
Yongxing Zheng, Yusong Huang, Panjin Hu, Xianhui Qiu, Jinfang Lv, Lingyun Bao   +5 more
doaj   +1 more source

Ag Incorporation Strategies in Chalcogenide Solar Cells: Formation Mechanisms and Pathways Toward High Efficiency

EcoEnergy, EarlyView.
Ag incorporation emerges as a unifying strategy for optimizing chalcogenide thin‐film solar cells by tailoring crystallization, defect energetics, and junction quality. This review bridges fundamental mechanisms with practical strategies for next‐generation high‐efficiency photovoltaic technologies.
Van‐Quy Hoang, Vo Pham Hoang Huy, Jaebaek Lee, Bashiru Kadiri‐English, Amanat Ali, Dae‐Ho Son, Dae‐Kue Hwang, Jin‐Kyu Kang, Kee‐Jeong Yang, Shi‐Joon Sung, Dae‐Hwan Kim   +10 more
wiley   +1 more source

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

Geological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia, Ryohei Takahashi, Andrea Agangi, Pearlyn Manalo, Hinako Sato   +4 more
wiley   +1 more source

Photoelectron spectromicroscopy at chalcopyrite films

Ultramicroscopy, 2012
CuInSe₂ films were prepared by MBE on GaAs (111) substrates. ZnSe and ZnO are subsequently deposited in situ by MOMBE. Interface parameters like band offsets and morphology are studied by X-ray photoelectron spectroscopy (XPS) and Low energy electron diffraction (LEED).
Pettenkofer, C., Hofmann, A., Bremsteller, W., Lehmann, C., Kelleter, F.   +4 more
openaire   +3 more sources