Highly stable tandem solar cell monolithically integrating dye-sensitized and CIGS solar cells

A highly stable monolithic tandem solar cell was developed by combining the heterogeneous photovoltaic technologies of dye-sensitized solar cell (DSSC) and solution-processed CuIn(x)Ga(1-x)Se(y)S(1-y) (CIGS) thin film solar cells. The durability of the tandem cell was dramatically enhanced by replac...

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Detalles Bibliográficos
Autores principales: Chae, Sang Youn, Park, Se Jin, Joo, Oh-Shim, Jun, Yongseok, Min, Byoung Koun, Hwang, Yun Jeong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4973243/
https://www.ncbi.nlm.nih.gov/pubmed/27489138
http://dx.doi.org/10.1038/srep30868
Descripción
Sumario:A highly stable monolithic tandem solar cell was developed by combining the heterogeneous photovoltaic technologies of dye-sensitized solar cell (DSSC) and solution-processed CuIn(x)Ga(1-x)Se(y)S(1-y) (CIGS) thin film solar cells. The durability of the tandem cell was dramatically enhanced by replacing the redox couple from [Image: see text] to [Co(bpy)(3)](2+) /[Co(bpy)(3)](3+)), accompanied by a well-matched counter electrode (PEDOT:PSS) and sensitizer (Y123). A 1000 h durability test of the DSSC/CIGS tandem solar cell in ambient conditions resulted in only a 5% decrease in solar cell efficiency. Based on electrochemical impedance spectroscopy and photoelectrochemical cell measurement, the enhanced stability of the tandem cell is attributed to minimal corrosion by the cobalt-based polypyridine complex redox couple.

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