title: Planar CH3NH3PbBr3 hybrid solar cells with 10.4% power conversion efficiency, fabricated by controlled crystallization in the spin-coating process.
abstract: A power conversion efficiency of 10.4% is demonstrated in planar CH3 NH3 PbBr3 hybrid solar cells without hysteresis of the J-V curve, by way of controlled crystallization in the spin-coating process. The high efficiency is attributed to the formation of a dense CH3 NH3 PbBr3 thin film by the introduction of HBr solution because the HBr increases the solubility of the CH3 NH3 PbBr3 and forms a thinner CH3 NH3 PbBr3 layer with full surface coverage.
authors.affiliation: Functional Crystallization Center (FCC), Department of Chemical Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea.
authors.forename: Jin Hyuck
authors.initials: JH
authors.lastname: Heo
authors.forename: Dae Ho
authors.initials: DH
authors.lastname: Song
authors.forename: Sang Hyuk
authors.initials: SH
authors.lastname: Im
keywords: crystallization; hybrid solar cells; methylammoniumlead tribromide; perovskites; solubility