Results 11 to 20 of about 3,999 (199)

Macroscopic versus microscopic photovoltaic response of heterojunctions based on mechanochemically prepared nanopowders of kesterite and n-type semiconductors

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2017
Mechanochemically prepared nanopowder of selenium-free kesterite Cu2ZnSnS4 (CZTS) in combination with n-type semiconductors, i.e., CdS, ZnO and TiO2, was tested in planar and bulk-heterojunction solar cells.
O.P. Dimitriev, D.O. Grynko, A.M. Fedoryak, T.P. Doroshenko, M. Kratzer, C. Teichert, Yu.V. Noskov, N.A. Ogurtsov, A.A. Pud, P. Balaz, M. Balaz, M. Tesinsky   +11 more
doaj   +2 more sources

Recovery Mechanisms in Aged Kesterite Solar Cells [PDF]

ACS Applied Energy Materials, 2022
For successful long-term deployment and operation of kesterites Cu2ZnSn(S x Se1-x )4 (CZTSSe) as light-absorber materials for photovoltaics, device stability and recovery in kesterite solar cells are investigated. A low-temperature heat treatment is applied to overcome the poor charge extraction that developed in the natural aging process.
Stephen Campbell, Martial Duchamp, Bethan Ford, Michael Jones, Linh Lan Nguyen, Matthew C. Naylor, Xinya Xu, Pietro Maiello, Guillaume Zoppi, Vincent Barrioz, Neil S. Beattie, Yongtao Qu   +11 more
openaire   +4 more sources

Device Postannealing with Superficially Ag-Modified Absorber for High-Efficiency Cd-Free Cu₂ZnSnS₄ Solar Cells. [PDF]

Small Sci
A superficial Ag‐modification process using spin‐coated Ag2ZnSnS4 layer on presulfurized CZTS precursor is proposed to improve the surface defect properties. The absorber fabrication process reduces the interfacial nonradiative recombination loss and suppresses the generation of deep defects during device annealing, enabling 10.53% efficient Cd‐free ...
Yuan X, Huang J, Li J, Sun K, Wang A, Hao X.   +5 more
europepmc   +2 more sources

Molecular Cluster-Controlled Quasi-Epitaxial CZTSSe/CdS Heterojunction Enables 12.3% Efficiency of Flexible Solar Cells. [PDF]

Adv Sci (Weinh)
By controlling the synthesis of CdS molecular clusters, a quasi‐epitaxial heterojunction is directly constructed during chemical bath deposition, enabling flexible kesterite solar cells to achieve an efficiency of 12.3%. Abstract Flexible Cu2ZnSn(S,Se)4 (CZTSSe) solar cells have garnered significant attention in photovoltaics.
Xie W, Li Y, Sun Q, Wang W, Wang R, Zhang C, Wu J, Deng H, Cheng S.   +8 more
europepmc   +2 more sources

Ultrathin wide band gap kesterites

Faraday Discussions, 2022
Thickness reduction of kesterite CZTS solar cells down to 250 nm is performed showing relatively small performance loss. The introduction of oxide passivation layers improves performance and a NaF treatment is used to make such back contact conductive.
Charlotte Platzer Björkman, Jes K. Larsen, Nishant Saini, Melike Babucci, Natalia Martin   +4 more
openaire   +3 more sources

Crystal engineering and thin-film deposition strategies towards improving the performance of kesterite photovoltaic cell

Journal of Materials Research and Technology, 2021
With high absorption coefficient (104 cm−1), optimal bandgap (~1.5 eV), low toxicity and the abundance of its constituent elements, kesterite (Cu2ZnSnS4 or CZTS) displays the properties of an ideal photovoltaic material.
Kelechi C. Nwambaekwe, Vivian Suru John-Denk, Samantha F. Douman, Penny Mathumba, Sodiq T. Yussuf, Onyinyechi V. Uhuo, Precious I. Ekwere, Emmanuel I. Iwuoha   +7 more
doaj   +1 more source

An ITO‐Free Kesterite Solar Cell

Small, 2023
AbstractPhotovoltaic thin film solar cells based on kesterite Cu2ZnSn(S, Se)4 (CZTSSe) have reached 13.8% sunlight‐to‐electricity conversion efficiency. However, this efficiency is still far from the Shockley‐Queisser radiative limit and is hindered by the significant deficit in open circuit voltage (VOC).
Yixiong Ji, Wangxian Chen, Di Yan, James Bullock, Yang Xu, Zhenghua Su, Wentong Yang, Jamie Stuart Laird, Tian Zheng, Na Wu, Wusong Zha, Qun Luo, Chang‐Qi Ma, Trevor A. Smith, Fangyang Liu, Paul Mulvaney   +15 more
openaire   +3 more sources

Kesterite Solar Cells: Insights into Current Strategies and Challenges

Advanced Science, 2021
Earth‐abundant and environmentally benign kesterite Cu2ZnSn(S,Se)4 (CZTSSe) is a promising alternative to its cousin chalcopyrite Cu(In,Ga)(S,Se)2 (CIGS) for photovoltaic applications.
Mingrui He, Chang Yan, Jianjun Li, Mahesh P. Suryawanshi, Jinhyeok Kim, Martin A. Green, Xiaojing Hao   +6 more
doaj   +1 more source

Rapid Thermal Processing of Kesterite thin films

Coatings, 2023
In this contribution we present work on rapid thermal annealing of as-electrodeposited thin films of Cu2ZnSnS4. The treatment was carried out in cold wall tubular reactor in dynamic conditions with variations of temperature, speed and time of the specific elements of the process.
Maxim Ganchev, Stanka Spasova, Taavi Raadik, Arvo Mere, Mare Altosaar, Enn Mellikov   +5 more
openaire   +1 more source

Evolution of the Cu2ZnSnS4 phase based on the sulfurization-crystallisation duration of the CuS/SnS/ZnS stack formed by thermal evaporation

Journal of Asian Ceramic Societies, 2023
Binary sulfides were deposited by sequential thermal evaporation with the stacking order glass/CuS/SnS/ZnS and subsequently subjected to a sulfurization-crystallization process, considering two thermal treatment time intervals, 5 and 20 min.
N. Cruz Santiago, E. Ramirez Morales, T. González Sánchez, R. Castillo Palomera, L. Rojas Blanco, G. Hernández Galvez, E. Miranda Mandujano, C. Ricárdez Jiménez, A. Trujillo Narcía, Omar Sarracino Martínez   +9 more
doaj   +1 more source