The present work reports on microscopic analyses of recombination at grain boundaries(GBs)in polycrystalline Li-doped(Ag,Cu)_2ZnSn(S,Se)_4(LiACZTSSe)and Cu_2ZnSnS_4(CZTS)absorber layers in high-efficiency solar cells(...The present work reports on microscopic analyses of recombination at grain boundaries(GBs)in polycrystalline Li-doped(Ag,Cu)_2ZnSn(S,Se)_4(LiACZTSSe)and Cu_2ZnSnS_4(CZTS)absorber layers in high-efficiency solar cells(conversion efficiencies of 14.4%and 10.8%).Recombination velocities sG B were determined at a large number of GBs by evaluating profiles extracted from cathodoluminescence intensity distributions across GBs in these polycrystalline layers.In both Li-ACZTSSe and CZTS absorber layers,the sG B values exhibited wide ranges over several orders of magnitude with a median values of 680 and 1100 cm s^(-1)for the Li-ACZTSSe and CZTS absorbers.展开更多
基金support by the German-Israeli Helmholtz International Research School HI-SCORE(HIRS-0008)by the project“EFFCISⅡ”funded by the Federal Ministry for Economic Affairs and Climate Action(BMWK)under contract numbers 03EE1059B+9 种基金the Australian Renewable Energy Agency(ARENA)as part of ARENA’s Transformative Research Accelerating Commercialization(TRAC)Programthe Australian Research Council(ARC)Discovery Project(DP230102463)Linkage Project(LP200301593)Baosteel-Australia Joint Research and Development Center(BA19010)support from the Australian Center of Advanced Photovoltaics(ACAP)as a recipient of the ACAP Fel owship(RG172864-B)financial support of the Australian Research Council(ARC)Future Fel owship(FT190100756)funding from the European Union’s H2020 ERC-Consolidator program under grant agreement number no.866018(SENSATE)by the Science and Innovation Ministry of Spain projects number PID2023-148976OB-C41(CURIO-CITY)and PCI2023-145971-2(ACT-FAST,CET-Partnership 2023 program)the European Union’s Horizon research and innovation program under the Marie Skodowska-Curie grant agreement no.10115148(LEK-PV)part of Maria de Maeztu Units of Excel ence Program CEX2023-001300-M/funded by MICIU/AEI/10.13039/501100011033。
文摘The present work reports on microscopic analyses of recombination at grain boundaries(GBs)in polycrystalline Li-doped(Ag,Cu)_2ZnSn(S,Se)_4(LiACZTSSe)and Cu_2ZnSnS_4(CZTS)absorber layers in high-efficiency solar cells(conversion efficiencies of 14.4%and 10.8%).Recombination velocities sG B were determined at a large number of GBs by evaluating profiles extracted from cathodoluminescence intensity distributions across GBs in these polycrystalline layers.In both Li-ACZTSSe and CZTS absorber layers,the sG B values exhibited wide ranges over several orders of magnitude with a median values of 680 and 1100 cm s^(-1)for the Li-ACZTSSe and CZTS absorbers.
