Low-temperature, simple and efficient preparation of perovskite solar cells using Lewis bases urea and thiourea as additives: stimulating large grain growth and providing a PCE up to 18.8%†,10.1039/C8RA03175D

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Lactoyl-CoA 全氟丁基戊烷白叶藤碱全氟己基辛烷新白叶藤碱壳寡糖特色专题-生物多肽

Low-temperature, simple and efficient preparation of perovskite solar cells using Lewis bases urea and thiourea as additives: stimulating large grain growth and providing a PCE up to 18.8%†

Cheng-Ming Hsieh,Yung-Sheng Liao,Yan-Ru Lin,Chih-Ping Chen,Cheng-Min Tsai,Eric Wei-Guang Diau,Shih-Ching Chuang

RSC Advances Pub Date : 05/29/2018 00:00:00 , DOI:10.1039/C8RA03175D

Abstract

We demonstrated that two Lewis bases – urea and thiourea – acted as efficient additives for CH₃NH₃(MA)PbI_3−xCl_x and MAPbI₃ perovskite solar cells (PSCs) and observed a significant increase in PCE for the MAPbI₃ devices in the presence of 1% urea with a remarkable PCE of 18.8% using an extremely low annealing temperature (85 °C).