期刊
ACS APPLIED ENERGY MATERIALS
卷 3, 期 3, 页码 2762-2770出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.9b02428
关键词
chalcogenides; perovskites; sputtering; photovoltaics; tandem solar cells
资金
- Goran Gustafsson Foundation [1927]
- Swedish Research Council [2017-04336]
- Swedish Foundation for Strategic Research (SSF) [RIF14-0053]
- strategic research area STandUP for Energy
- VR-RFI [821-2012-5144, 2017-00646_9, 2018-04834]
- Swedish Research Council [2017-04336] Funding Source: Swedish Research Council
Tandem solar cells based on hybrid organic-inorganic metal halide perovskites have reached efficiencies up to 28%, but major concerns for long-term stability and the presence of Pb have raised interest in searching for fully earth-abundant, intrinsic chemically stable, and nontoxic alternatives. With a direct band gap around 1.8 eV and stability in air up to at least 500 degrees C, BaZrS3 is a promising candidate. This work presents the first approach of synthesizing a thin film of such compound by sputtering at ambient temperature with a subsequent rapid thermal process. Despite the short fabrication time, the width of the XRD diffraction peaks and the energy and distribution of the photoluminescence response show comparable crystalline quality to that from bulk synthesis methods. Good crystallization required around 900 degrees C. Such a high temperature could be incompatible with fabrication of tandem solar cells.
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