Promise of Commercialization: Carbon Materials for Low-Cost Perovskite Solar Cells

29 Nov 2017  ·  Cai Yu, Liang Lusheng, Gao Peng ·

Perovskite solar cells (PVSCs) have attracted extensive studies due to their high power conversion efficiency (PCE) with low-cost in both raw material and processes. However, there remain obstacles that hinder the way to its commercialization... Among many drawbacks in PVSCs, we note the problems brought by the use of noble metal counter electrodes (CEs) such as gold (Au) and silver (Ag). The costly Au and Ag need high energy-consumption thermal evaporation process which can be made only with expensive evaporation equipment under vacuum. All the factors elevate the threshold of PVSCs' commercialization. Carbon material, on the other hand, is a readily available electrode candidate for the application as CE in the PVSCs. In this review, endeavors on PVSCs with low-cost carbon materials will be comprehensively discussed based on different device structures and carbon composition. We believe that the PVSCs with carbon-based CE hold the promise of commercialization of this new technology. read more

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Applied Physics