Ontology highlight
ABSTRACT: Unlabelled
Organic-inorganic hybrid perovskite materials offer the potential for realization of low-cost and flexible next-generation solar cells fabricated by low-temperature solution processing. Although efficiencies of perovskite solar cells have dramatically improved up to 19% within the past 5 years, there is still considerable room for further improvement in device efficiency and stability through development of novel materials and device architectures. Here we demonstrate that inverted-type perovskite solar cells with pH-neutral and low-temperature solution-processable conjugated polyelectrolyte as the hole transport layer (instead of acidicPedot
PSS) exhibit a device efficiency of over 12% and improved device stability in air. As an alternative toPedot
PSS, this work is the first report on the use of an organic hole transport material that enables the formation of uniform perovskite films with complete surface coverage and the demonstration of efficient, stable perovskite/fullerene planar heterojunction solar cells.
SUBMITTER: Choi H
PROVIDER: S-EPMC4557298 | biostudies-literature | 2015 Jun
REPOSITORIES: biostudies-literature
Choi Hyosung H Mai Cheng-Kang CK Kim Hak-Beom HB Jeong Jaeki J Song Seyeong S Bazan Guillermo C GC Kim Jin Young JY Heeger Alan J AJ
Nature communications 20150617
Organic-inorganic hybrid perovskite materials offer the potential for realization of low-cost and flexible next-generation solar cells fabricated by low-temperature solution processing. Although efficiencies of perovskite solar cells have dramatically improved up to 19% within the past 5 years, there is still considerable room for further improvement in device efficiency and stability through development of novel materials and device architectures. Here we demonstrate that inverted-type perovski ...[more]