期刊
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
卷 129, 期 -, 页码 204-208出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2019.01.008
关键词
Thin films; Nanoparticles; Cu2ZnSnS4; Perovskite; Solar cells
资金
- National Natural Science Foundation of China, China [11274307, 91333121, 11474286]
- Science and Technology Project of AuhuiProvince, China [1604a0902148]
- Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology, China [2016FXZY003]
Compact Cu2ZnSnS4 (CZTS) nanoparticle films are in-situ prepared on ITO-coated glass by a novel molecular precursor solution method at a low temperature (300 degrees C) and a short annealing time. The CZTS films exhibit a band gap of 1.48 eV and absorption coefficient of > 10(4)cm(-1). It is found that the performance of CH3NH3PbI3 perovskite solar cells with CZTS film as hole transporting material (HTM) strongly depends on CZTS thickness due to that its absorption of photons significantly limits the photon-to-electron transfer below 550 nm, and the CZTS film thinner than 100 nm is a more effective HTM for efficient MAPbI(3)-based solar cells; furthermore, the CZTS/MAPbI(3) solar cells are much more efficient and stable than the counterpart devices with poly(3,4-ethylenedioxy-thiophene):poly(styrene sulfonate) as HTM.
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