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Improving Performance of Lead‐Free Formamidinium Tin Triiodide Perovskite Solar Cells by Tin Source Purification (Solar RRL 10∕2018)
Author(s) -
Gu Feidan,
Ye Senyun,
Zhao Ziran,
Rao Haixia,
Liu Zhiwei,
Bian Zuqiang,
Huang Chunhui
Publication year - 2018
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.201870217
Subject(s) - tin , triiodide , formamidinium , perovskite (structure) , materials science , fabrication , chemical engineering , nanotechnology , chemistry , metallurgy , dye sensitized solar cell , engineering , medicine , alternative medicine , electrode , pathology , electrolyte
The purity of tin (Sn) sources is vital in terms of Sn‐based perovskite solar cells’ fabrication. In article no. 1800136 , Zhiwei Liu, Zuqiang Bian, and co‐workers propose a simple purification method to reduce the detrimental Sn 4+ existing in the precursor solutions by adding Sn powder. Aft er purification, the efficiency of FASnI 3 ‐based solar cells prepared from 99% SnI 2 is elevated from 0.09% to a maximum value of 6.75% due to the improved morphology and lessened recombination loss.