Deposition routes of Cs2AgBiBr6 double perovskites for photovoltaic applications. (5th February 2018)

• Record Type: Journal Article
• Authors: Pantaler, Martina; Fettkenhauer, Christian; Nguyen, Hoang L.; Anusca, Irina; Lupascu, Doru C.
• Is Part Of: MRS advances. Volume 3:Number 32(2018)
• Page Start: 1819
• Page End: 1823
• Publication Date: 2018-02-05
• Subjects: energy generation, -- chemical vapor deposition (CVD) (deposition), -- optical; Electrical engineering -- Congresses; Physics -- Congresses; Materials -- Research -- Congresses; Materials science -- Congresses; 620.11
• DOI: 10.1557/adv.2018.151
• Languages: English
• ISSNs: 2059-8521

Abstract

ABSTRACT: The lead free double perovskite Cs2 AgBiBr6 is an upcoming alternative to lead based perovskites as absorber material in perovskite solar cells. So far, the majority of investigations on this interesting material have focused on polycrystalline powders and single crystals. We present vapor and solution based approaches for the preparation of Cs2 AgBiBr6 thin films. Sequential vapor deposition processes starting from different precursors are shown and their weaknesses are discussed. Single source evaporation of Cs2 AgBiBr6 and sequential deposition of Cs3 Bi2 Br9 and AgBr result in the formation of the double perovskite phase. Additionally, we show the possibility of the preparation of planar Cs2 AgBiBr6 thin films by spin coating.