Abstract
A photoelectrode has to generate high enough photovoltage by efficient charge separation spontaneously to split water. In this study, cascade band structures with CdS and ZnS applied to CuInxGa1-xSeyS2-y (CIGS) photoelectrode of water splitting. The morphology, the electronic and the chemical state of CIGS heterojunction films have been characterized by a scanning electron microscopy, X-ray photoelectron spectroscopy, and ultraviolet photoelectron spectroscopy. The CIGS/CdS/ZnS photocathode shows ∼400 mV anodic shift of onset potential and 0.028% efficiency for solar to hydrogen conversion when it couples with a WO3/BiVO4/Co-Pi photoanode for water splitting without external bias potential.
| Original language | English |
|---|---|
| Pages (from-to) | 633-640 |
| Number of pages | 8 |
| Journal | Electrochimica Acta |
| Volume | 297 |
| DOIs | |
| Publication status | Published - 2019 Feb 20 |
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Keywords
- CdS
- CIGS
- Photoelectrochemical cell
- Water splitting
- ZnS
ASJC Scopus subject areas
- Chemical Engineering(all)
- Electrochemistry
Cite this
Charge transportation at cascade energy structure interfaces of CuInxGa1-xSeyS2-y/CdS/ZnS for spontaneous water splitting. / Chae, Sang Youn; Park, Se Jin; Min, Byoung Koun; Hwang, Yun Jeong; Joo, Oh Shim.
In: Electrochimica Acta, Vol. 297, 20.02.2019, p. 633-640.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Charge transportation at cascade energy structure interfaces of CuInxGa1-xSeyS2-y/CdS/ZnS for spontaneous water splitting
AU - Chae, Sang Youn
AU - Park, Se Jin
AU - Min, Byoung Koun
AU - Hwang, Yun Jeong
AU - Joo, Oh Shim
PY - 2019/2/20
Y1 - 2019/2/20
N2 - A photoelectrode has to generate high enough photovoltage by efficient charge separation spontaneously to split water. In this study, cascade band structures with CdS and ZnS applied to CuInxGa1-xSeyS2-y (CIGS) photoelectrode of water splitting. The morphology, the electronic and the chemical state of CIGS heterojunction films have been characterized by a scanning electron microscopy, X-ray photoelectron spectroscopy, and ultraviolet photoelectron spectroscopy. The CIGS/CdS/ZnS photocathode shows ∼400 mV anodic shift of onset potential and 0.028% efficiency for solar to hydrogen conversion when it couples with a WO3/BiVO4/Co-Pi photoanode for water splitting without external bias potential.
AB - A photoelectrode has to generate high enough photovoltage by efficient charge separation spontaneously to split water. In this study, cascade band structures with CdS and ZnS applied to CuInxGa1-xSeyS2-y (CIGS) photoelectrode of water splitting. The morphology, the electronic and the chemical state of CIGS heterojunction films have been characterized by a scanning electron microscopy, X-ray photoelectron spectroscopy, and ultraviolet photoelectron spectroscopy. The CIGS/CdS/ZnS photocathode shows ∼400 mV anodic shift of onset potential and 0.028% efficiency for solar to hydrogen conversion when it couples with a WO3/BiVO4/Co-Pi photoanode for water splitting without external bias potential.
KW - CdS
KW - CIGS
KW - Photoelectrochemical cell
KW - Water splitting
KW - ZnS
UR - http://www.scopus.com/inward/record.url?scp=85059327858&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059327858&partnerID=8YFLogxK
U2 - 10.1016/j.electacta.2018.11.184
DO - 10.1016/j.electacta.2018.11.184
M3 - Article
AN - SCOPUS:85059327858
VL - 297
SP - 633
EP - 640
JO - Electrochimica Acta
JF - Electrochimica Acta
SN - 0013-4686
ER -