Double functions of porous TiO2 electrodes on CH3NH3PbI3 perovskite solar cells: Enhancement of perovskite crystal transformation and prohibition of short circuiting | Zendy

Govindhasamy Murugadoss | Zendy; Gai Mizuta | Zendy; Soichiro Tanaka | Zendy; Hitoshi Nishino | Zendy; Tomokazu Umeyama | Zendy; Hiroshi Imahori | Zendy; Seigo Ito | Zendy

Open Access

Double functions of porous TiO2 electrodes on CH3NH3PbI3 perovskite solar cells: Enhancement of perovskite crystal transformation and prohibition of short circuiting

Author(s) -

Govindhasamy Murugadoss,

Gai Mizuta,

Soichiro Tanaka,

Hitoshi Nishino,

Tomokazu Umeyama,

Hiroshi Imahori,

Seigo Ito

Publication year - 2014

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4891597

Subject(s) - materials science , perovskite (structure) , electrode , crystal (programming language) , porosity , energy conversion efficiency , perovskite solar cell , porous medium , deposition (geology) , solar cell , photovoltaic system , transformation (genetics) , chemical engineering , short circuit , optoelectronics , composite material , voltage , chemistry , computer science , engineering , biology , paleontology , programming language , sediment , ecology , biochemistry , quantum mechanics , physics , gene

In order to analyze the crystal transformation from hexagonal PbI2 to CH3NH3PbI3 by the sequential (two-step) deposition process, perovskite CH3NH3PbI3 layers were deposited on flat and/or porous TiO2 layers. Although the narrower pores using small nanoparticles prohibited the effective transformation, the porous-TiO2 matrix was able to help the crystal transformation of PbI2 to CH3NH3PbI3 by sequential two-step deposition. The resulting PbI2 crystals in porous TiO2 electrodes did not deteriorate the photovoltaic effects. Moreover, it is confirmed that the porous TiO2 electrode had served the function of prohibiting short circuits between working and counter electrodes in perovskite solar cells

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research