High-efficiency perovskite solar cells improved with low-cost orthorhombic Cu2ZnSnS4 as the hole-transporting layer

• DOI: 10.17222/mit.2017.178
• Publication Date: 2018-08-21T03:27:23Z
• Authors: Y. Zuo; L. Chen; W. Jiang; B. Liu; C. Zeng; M. Li; X. Shi
• Keywords: Orthorhombic crystal system

Quaternary copper chalcogenide Cu2ZnSnS4 (CZTS) nanoparticles (NPs) were synthesized with the sol-gel technique and used as hole-transporting layer (HTL), achieving a power-conversion efficiency (PCE) of 13.41 %, which is highest PCE for Cu-based inorganic HTLs.The effects CZTS HTL on optical absorption, crystallinity, crystal plane orientation hysteresis J-V curve devices perovskite film investigated compared spiro-OMeTAD, revealing role in efficient hole transporting solar cells.In addition to traditional use light absorber, this study reveals new photovoltaics, acting an HTL, providing completely different insight into development.Keywords: Cu 2 ZnSnS 4 , perovskite, cells, Avtorji prispevka so sintetizirali nanodelce (NPs; angl.: Nano-Particles) kvaternarnega bakrovega halkogenida s tehniko jih uporabili kot transportno plast za praznine (HTL; layer).S tem dosegli 13,41 % u~inkovitost pretvorbe mo~i (PCE; Power Conversion Efficiency), kar je do sedaj najvi{ja dose`ena z anorganskimi HTL-ji na osnovi Cu.Avtoriji raziskali vpliv opti~no absorpcijo, kristalini~nost, orientacijo kristalne ravnine histerezo krivulje naprave perovskitnim filmom ga primerjali spiro-OMeTAD ter odkrili vlogo pri u~inkovitosti transporta praznin v perovskitnih son~nih celicah.Ta {tudija, dodatno k tradicionalni uporabi svetlobnih