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| Title: | Inorganic Pb-Free Perovskite Light Absorbers for Efficient Perovskite Solar Cells with Enhanced Performance |
| Authors: | Ahmad, Khursheed Kumar, Praveen Naveen Mobin, Shaikh M. |
| Keywords: | Antimony compounds;Bismuth compounds;Energy gap;Germanium compounds;Perovskite;Solar absorbers;Tin compounds;Hole transport materials;Light absorbers;Novel strategies;Optoelectronic properties;Organic moiety;Photovoltaic performance;Poor stability;Power conversion efficiencies;Perovskite solar cells |
| Issue Date: | 2020 |
| Publisher: | John Wiley and Sons Ltd |
| Citation: | Ahmad, K., Kumar, P., & Mobin, S. M. (2020). Inorganic pb-free perovskite light absorbers for efficient perovskite solar cells with enhanced performance. Chemistry - an Asian Journal, 15(18), 2859-2863. doi:10.1002/asia.202000680 |
| Abstract: | Recently, enormous efforts have been made to develop the efficient, lead (Pb) free and stable perovskite solar cells (PSCs). In this regards, various strategies were applied and the optoelectronic properties of various Pb free perovskites such as (CH3NH3)3Sb2I9, (CH3NH3)3Bi2I9, Cs3Sb2I9, Cs3Bi2I9, CH3NH3SnI3 and CH3NH3GeI3 etc have been investigated. However, the photovoltaic performance of the developed PSCs was still low and presence of organic moieties in common hole-transport materials (HTMs) shows poor stability against moisture and heat. Herein, we have investigated the optoelectronic properties of all inorganic Pb free perovskites (Cs3Sb2I9=1 and Cs3Bi2I9=2) and employed novel strategies (dissolution-recrystallization) to prepare the efficient Pb free PSCs. The band gaps of the 1 and 2 were found to be 2.2 eV and 2.0 eV, respectively. The developed PSCs with 1 and 2 exhibited the power conversion efficiency of 0.68% and 1.087%, respectively. © 2020 Wiley-VCH GmbH |
| URI: | https://doi.org/10.1002/asia.202000680 https://dspace.iiti.ac.in/handle/123456789/8777 |
| ISSN: | 1861-4728 |
| Type of Material: | Journal Article |
| Appears in Collections: | Department of Chemistry |
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