Perovskite Solar Cells: Ionic Additive Engineering Toward High‐Efficiency Perovskite Solar Cells with Reduced Grain Boundaries and Trap Density (Adv. Funct. Mater. 34/2018). (20th August 2018)

• Record Type: Journal Article
• Authors: Cai, Feilong; Yan, Yu; Yao, Jiaxu; Wang, Pang; Wang, Hui; Gurney, Robert S.; Liu, Dan; Wang, Tao
• Is Part Of: Advanced functional materials. Volume 28:Number 34(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-08-20
• Subjects: additive engineering -- grain boundaries -- perovskite solar cells -- TACl -- trap density; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.201870240
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract : In article number1801985, Dan Liu, Tao Wang and co‐workers introduce an ionic additive, trimethylammonium chloride, in the methyl ammonium iodide precursor solution. Perovskite films prepared from this precursor possess reduced grain boundaries and trap densities. Suppressed non‐radiative recombination and increased carrier diffusion length increase the efficiency of MAPbI3 solar cells from 19.1% to 20.9%.