title: Chemical management for colorful, efficient, and stable inorganic-organic hybrid nanostructured solar cells.
abstract: Chemically tuned inorganic-organic hybrid materials, based on CH3NH3(═MA)Pb(I(1-x)Br(x))3 perovskites, have been studied using UV-vis absorption and X-ray diffraction patterns and applied to nanostructured solar cells. The band gap engineering brought about by the chemical management of MAPb(I(1-x)Br(x))3 perovskites can be controllably tuned to cover almost the entire visible spectrum, enabling the realization of colorful solar cells. We demonstrate highly efficient solar cells exhibiting 12.3% in a power conversion efficiency of under standard AM 1.5, for the most efficient device, as a result of tunable composition for the light harvester in conjunction with a mesoporous TiO2 film and a hole conducting polymer. We believe that the works highlighted in this paper represent one step toward the realization of low-cost, high-efficiency, and long-term stability with colorful solar cells.
authors.affiliation: Division of Advanced Materials, Korea Research Institute of Chemical Technology, Yuseong-Gu, Daejeon, Korea.
authors.forename: Jun Hong
authors.initials: JH
authors.lastname: Noh
authors.forename: Sang Hyuk
authors.initials: SH
authors.lastname: Im
authors.forename: Jin Hyuck
authors.initials: JH
authors.lastname: Heo
authors.forename: Tarak N
authors.initials: TN
authors.lastname: Mandal
authors.forename: Sang Il
authors.initials: SI
authors.lastname: Seok
mesh_terms: D017610:Calcium Compounds / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D012993:Solar Energy; D014025:Titanium / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D017610:Calcium Compounds; D010087:Oxides; C059910:perovskite; D014025:Titanium