Journal
CHEMICAL COMMUNICATIONS
Volume 52, Issue 45, Pages 7273-7275Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc02086k
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Funding
- U.S. National Science Foundation [DMR 1305913, OIA-1538893]
- International S&T Cooperation Program of China [2015DFG62670]
- Office Of The Director
- Office of Integrative Activities [1538893] Funding Source: National Science Foundation
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The alpha -> delta phase transition, which occurs favorably in planar films of a black alpha-HC(NH2)(2)PbI3 (alpha-FAPbI(3)) perovskite in the amibent, is retarded when alpha-FAPbI(3) is deposited upon mesoporous TiO2 scaffolds. It is hypothesized that this is due to the synergistic effect of the partial encapsulation of alpha-FAPbI(3) by the mesoporous TiO2 and the elevated activation energy for the transition reaction associated with the substantial increase of the TiO2/alpha-FAPbI(3) interfacial area in the mesoscopic system.
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