Spontaneous solar water splitting by DSSC/CIGS tandem solar cells

Sang Youn Chae; Se Jin Park; Oh Shim Joo; Byoung Koun Min; Yun Jeong Hwang

doi:10.1016/j.solener.2016.06.058

Spontaneous solar water splitting by DSSC/CIGS tandem solar cells

Sang Youn Chae, Se Jin Park, Oh Shim Joo, Byoung Koun Min, Yun Jeong Hwang

GREEN SCHOOL (Graduate School of Energy and Environment)

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

A tandem solar cell equipped with a dye-sensitized solar cell (DSSC) and a CuIn_xGa₁₋_xS_ySe₁₋_y (CIGS) bottom sub-cell was assessed for photovoltaic cell (PV)-assisted water splitting application. Two types of cobalt complexes ([Co(bpy)₃]^2+/3+ and [Co(phen)₃]^2+/3+) were tested as the redox couples in the DSSC sub-cell. Of these, [Co(phen)₃]^2+/3+ showed a larger open circuit potential and higher power conversion efficiency for the DSSC/CIGS tandem cell with high stability due to its more positive redox potential. Two unit cells of the DSSC/CIGS tandem cell were assembled as a module to supply sufficient power for water electrolysis. Spontaneous solar water splitting was realized when the DSSC/CIGS module was connected to a stainless steel anode and a platinum cathode. The [Co(phen)₃]^2+/3+ redox couple in the tandem cell was found to have high solar to hydrogen conversion efficiency (η_STH = 4.65%) in the PV-assisted electrolysis cell.

Original language	English
Pages (from-to)	821-826
Number of pages	6
Journal	Solar Energy
Volume	135
DOIs	https://doi.org/10.1016/j.solener.2016.06.058
Publication status	Published - 2016 Oct 1

Bibliographical note

Publisher Copyright:
© 2016 Elsevier Ltd

Keywords

Cobalt based electrolyte
DSSC/CIGS tandem cell
PV-electrolysis
Stability

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.solener.2016.06.058

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title = "Spontaneous solar water splitting by DSSC/CIGS tandem solar cells",

abstract = "A tandem solar cell equipped with a dye-sensitized solar cell (DSSC) and a CuInxGa1−xSySe1−y (CIGS) bottom sub-cell was assessed for photovoltaic cell (PV)-assisted water splitting application. Two types of cobalt complexes ([Co(bpy)3]2+/3+ and [Co(phen)3]2+/3+) were tested as the redox couples in the DSSC sub-cell. Of these, [Co(phen)3]2+/3+ showed a larger open circuit potential and higher power conversion efficiency for the DSSC/CIGS tandem cell with high stability due to its more positive redox potential. Two unit cells of the DSSC/CIGS tandem cell were assembled as a module to supply sufficient power for water electrolysis. Spontaneous solar water splitting was realized when the DSSC/CIGS module was connected to a stainless steel anode and a platinum cathode. The [Co(phen)3]2+/3+ redox couple in the tandem cell was found to have high solar to hydrogen conversion efficiency (ηSTH = 4.65%) in the PV-assisted electrolysis cell.",

keywords = "Cobalt based electrolyte, DSSC/CIGS tandem cell, PV-electrolysis, Stability",

author = "Chae, {Sang Youn} and Park, {Se Jin} and Joo, {Oh Shim} and Min, {Byoung Koun} and Hwang, {Yun Jeong}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

year = "2016",

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day = "1",

doi = "10.1016/j.solener.2016.06.058",

language = "English",

volume = "135",

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TY - JOUR

T1 - Spontaneous solar water splitting by DSSC/CIGS tandem solar cells

AU - Chae, Sang Youn

AU - Park, Se Jin

AU - Joo, Oh Shim

AU - Min, Byoung Koun

AU - Hwang, Yun Jeong

PY - 2016/10/1

Y1 - 2016/10/1

N2 - A tandem solar cell equipped with a dye-sensitized solar cell (DSSC) and a CuInxGa1−xSySe1−y (CIGS) bottom sub-cell was assessed for photovoltaic cell (PV)-assisted water splitting application. Two types of cobalt complexes ([Co(bpy)3]2+/3+ and [Co(phen)3]2+/3+) were tested as the redox couples in the DSSC sub-cell. Of these, [Co(phen)3]2+/3+ showed a larger open circuit potential and higher power conversion efficiency for the DSSC/CIGS tandem cell with high stability due to its more positive redox potential. Two unit cells of the DSSC/CIGS tandem cell were assembled as a module to supply sufficient power for water electrolysis. Spontaneous solar water splitting was realized when the DSSC/CIGS module was connected to a stainless steel anode and a platinum cathode. The [Co(phen)3]2+/3+ redox couple in the tandem cell was found to have high solar to hydrogen conversion efficiency (ηSTH = 4.65%) in the PV-assisted electrolysis cell.

AB - A tandem solar cell equipped with a dye-sensitized solar cell (DSSC) and a CuInxGa1−xSySe1−y (CIGS) bottom sub-cell was assessed for photovoltaic cell (PV)-assisted water splitting application. Two types of cobalt complexes ([Co(bpy)3]2+/3+ and [Co(phen)3]2+/3+) were tested as the redox couples in the DSSC sub-cell. Of these, [Co(phen)3]2+/3+ showed a larger open circuit potential and higher power conversion efficiency for the DSSC/CIGS tandem cell with high stability due to its more positive redox potential. Two unit cells of the DSSC/CIGS tandem cell were assembled as a module to supply sufficient power for water electrolysis. Spontaneous solar water splitting was realized when the DSSC/CIGS module was connected to a stainless steel anode and a platinum cathode. The [Co(phen)3]2+/3+ redox couple in the tandem cell was found to have high solar to hydrogen conversion efficiency (ηSTH = 4.65%) in the PV-assisted electrolysis cell.

KW - Cobalt based electrolyte

KW - DSSC/CIGS tandem cell

KW - PV-electrolysis

KW - Stability

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DO - 10.1016/j.solener.2016.06.058

M3 - Article

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SN - 0038-092X

VL - 135

SP - 821

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JO - Solar Energy

JF - Solar Energy

ER -

Spontaneous solar water splitting by DSSC/CIGS tandem solar cells

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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