Solution-processed solar cells based on environmentally friendly AgBiS2 nanocrystals
Solution-processed solar cells based on environmentally friendly AgBiS2 nanocrystals
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DOI：
10.1038/nphoton.2016.108
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发表时间：
2016-08-01
期刊：
影响因子：
35
通讯作者：
Konstantatos, Gerasimos
中科院分区：
文献类型：
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作者：
Bernechea, Maria;Miller, Nichole Cates;Konstantatos, Gerasimos
溶液处理的无机太阳能电池是第一代太阳能电池的有前途的低成本替代品（1，2）。在低温下进行溶液处理，结合使用无毒和丰富的元素，可以帮助最大限度地降低制造成本，并促进监管验收。然而，目前还没有材料在展示有希望的效率的同时展现所有这些特征。许多正在探索的候选元素含有有毒元素，如铅或镉（钙钛矿（2，3），PbS 4，CdTe 5，6和CdS（Se）（7，8））或稀有元素，如碲或铟（CdTe和CIGS（Se）/CIS 9，10）。其他材料需要高温工艺，如硒化或烧结，或依赖于真空沉积技术（Sb 2S（Se）（3）（11-13），SnS 14，15和CZTS（Se）（16））。在这里，我们介绍了AgBiS 2纳米晶体作为一种无毒（17），地球丰富（18）的高性能材料，在低温环境条件下制造的溶液处理太阳能电池（
Solution-processed inorganic solar cells are a promising low-cost alternative to first-generation solar cells(1,2). Solution processing at low temperatures combined with the use of non-toxic and abundant elements can help minimize fabrication costs and facilitate regulatory acceptance. However, at present, there is no material that exhibits all these features while demonstrating promising efficiencies. Many of the candidates being explored contain toxic elements such as lead or cadmium (perovskites(2,3), PbS4, CdTe5,6 and CdS(Se)(7,8)) or scarce elements such as tellurium or indium (CdTe and CIGS(Se)/CIS9,10). Others require high-temperature processes such as selenization or sintering, or rely on vacuum deposition techniques (Sb2S(Se)(3)(11-13), SnS14,15 and CZTS(Se)(16)). Here, we present AgBiS2 nanocrystals as a non-toxic(17), earth-abundant(18) material for high-performance, solution-processed solar cells fabricated under ambient conditions at low temperatures (