Conjugated polyelectrolyte hole transport layer for inverted-type perovskite solar cells.

ABSTRACT: 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 acidic

Pedot

PSS) exhibit a device efficiency of over 12% and improved device stability in air. As an alternative to

Pedot

PSS, this work is the fi

SUBMITTER: Choi H 

PROVIDER: S-EPMC4557298 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature