Research on charge accumulation and transport in hole-conductor-free perovskite (CH3NH3PbI2Cl) -based nanostructure solar cells

Abstract

In this paper, we propose a new kind of nanostructure solar cell involving perovskite CH3NH3PbI2Cl and metal-oxide semiconductor TiO2. Taking advantage of the promising properties of this solution-processed perovskite material such as good light absorption and ambipolar transport of charge carriers, we choose CH3NH3PbI2Cl as both a light absorber for TiO2 nanoparticle sensitization and hole transport material, which helps to constitute a solid-state sensitized solar cell with much simpler construction. Specifically, the cell fabrication and characterization are reported; the analysis based on small-signal electrochemical measurements is in particular provided, in order to investigate internal mechanisms of this photovoltaic device, mainly including charge accumulation, recombination and transport through it.

Department(s)

Physics, Astronomy, and Materials Science

Document Type

Conference Proceeding

DOI

https://doi.org/10.1149/06104.0361ecst

Publication Date

1-1-2014

Journal Title

ECS Transactions

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