TiO2/TaON- and TiO2/BiOI-based solid-state solar cells

Bashir Ahmmad; Junichi Kurawaki; Takahiro Ohkubo; Fumihiko Hirose

doi:10.1061/(ASCE)EY.1943-7897.0000130

TiO₂/TaON- and TiO₂/BiOI-based solid-state solar cells

Bashir Ahmmad, Junichi Kurawaki, Takahiro Ohkubo, Fumihiko Hirose

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

A three-phase solid-state solar cell (SSSC) has been developed successfully using TaON nanoparticles or BiOI microspheres as a sensitizer material over a TiO₂ film and CuI as a hole collector. Stable current (I _sc)-voltage (V_oc) curves are found under ultraviolet UV visible light irradiation with an efficiency of 0.15% and 0.10% for TaON- and BiOI-based solar cells, respectively. The observed photocurrents in SSSCs are approximately 10 and 48 times higher than those in wet-type solar cells (WSCs) based on TaON and BiOI, respectively. A plausible mechanism of charge transfer and hole filling is discussed in terms of the band gap energy and band position of the semiconductor materials.

Original language	English
Pages (from-to)	338-342
Number of pages	5
Journal	Journal of Energy Engineering
Volume	139
Issue number	4
DOIs	https://doi.org/10.1061/(ASCE)EY.1943-7897.0000130
Publication status	Published - Dec 2013

Keywords

Bismuth oxyiodide (BiOI)
Solid-state solar cell (SSSC)
Tantalum oxynitride (TaON)

ASJC Scopus subject areas

Civil and Structural Engineering
Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Energy Engineering and Power Technology
Waste Management and Disposal

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title = "TiO2/TaON- and TiO2/BiOI-based solid-state solar cells",

abstract = "A three-phase solid-state solar cell (SSSC) has been developed successfully using TaON nanoparticles or BiOI microspheres as a sensitizer material over a TiO2 film and CuI as a hole collector. Stable current (I sc)-voltage (Voc) curves are found under ultraviolet UV visible light irradiation with an efficiency of 0.15% and 0.10% for TaON- and BiOI-based solar cells, respectively. The observed photocurrents in SSSCs are approximately 10 and 48 times higher than those in wet-type solar cells (WSCs) based on TaON and BiOI, respectively. A plausible mechanism of charge transfer and hole filling is discussed in terms of the band gap energy and band position of the semiconductor materials.",

keywords = "Bismuth oxyiodide (BiOI), Solid-state solar cell (SSSC), Tantalum oxynitride (TaON)",

author = "Bashir Ahmmad and Junichi Kurawaki and Takahiro Ohkubo and Fumihiko Hirose",

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AU - Ahmmad, Bashir

AU - Kurawaki, Junichi

AU - Ohkubo, Takahiro

AU - Hirose, Fumihiko

PY - 2013/12

Y1 - 2013/12

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