Efficient Ag8GeS6 counter electrode prepared from nanocrystal ink for dye-sensitized solar cells

Qingquan He; Tianyue Qian; Jiantao Zai; Qiquan Qiao; Shoushuang Huang; Yiran Li; Min Wang

doi:10.1039/c5ta05304h

Efficient Ag₈GeS₆ counter electrode prepared from nanocrystal ink for dye-sensitized solar cells

Qingquan He, Tianyue Qian, Jiantao Zai, Qiquan Qiao, Shoushuang Huang, Yiran Li, Min Wang

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

35 Scopus citations

Abstract

Ternary metal sulfides could provide more alternatives and tune physicochemical properties due to the presence of two cations. However, only Co/Ni-based ternary sulfides have been explored as counter electrode (CE) materials for dye-sensitized solar cells (DSSCs). Herein, CEs fabricated using Ag₈GeS₆ nanocrystal ink exhibited efficient electrocatalytic activity in the reduction of I₃^- to I^- in DSSCs. The DSSC with the Ag₈GeS₆ CE displayed a higher power conversion efficiency of 8.10% than that with the Pt CE (8.02%). Moreover, the devices also showed the characteristics of fast activity onset, high multiple start/stop capability and good irradiation stability. The results indicated that the developed Ag₈GeS₆ CE could be a promising alternative to Pt CEs in DSSCs.

Original language	English (US)
Pages (from-to)	20359-20365
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	3
Issue number	40
DOIs	https://doi.org/10.1039/c5ta05304h
State	Published - 2015
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

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10.1039/c5ta05304h

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title = "Efficient Ag8GeS6 counter electrode prepared from nanocrystal ink for dye-sensitized solar cells",

abstract = "Ternary metal sulfides could provide more alternatives and tune physicochemical properties due to the presence of two cations. However, only Co/Ni-based ternary sulfides have been explored as counter electrode (CE) materials for dye-sensitized solar cells (DSSCs). Herein, CEs fabricated using Ag8GeS6 nanocrystal ink exhibited efficient electrocatalytic activity in the reduction of I3- to I- in DSSCs. The DSSC with the Ag8GeS6 CE displayed a higher power conversion efficiency of 8.10% than that with the Pt CE (8.02%). Moreover, the devices also showed the characteristics of fast activity onset, high multiple start/stop capability and good irradiation stability. The results indicated that the developed Ag8GeS6 CE could be a promising alternative to Pt CEs in DSSCs.",

author = "Qingquan He and Tianyue Qian and Jiantao Zai and Qiquan Qiao and Shoushuang Huang and Yiran Li and Min Wang",

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T1 - Efficient Ag8GeS6 counter electrode prepared from nanocrystal ink for dye-sensitized solar cells

AU - He, Qingquan

AU - Qian, Tianyue

AU - Zai, Jiantao

AU - Qiao, Qiquan

AU - Huang, Shoushuang

AU - Li, Yiran

AU - Wang, Min

N1 - Publisher Copyright: © The Royal Society of Chemistry 2015.

PY - 2015

Y1 - 2015

N2 - Ternary metal sulfides could provide more alternatives and tune physicochemical properties due to the presence of two cations. However, only Co/Ni-based ternary sulfides have been explored as counter electrode (CE) materials for dye-sensitized solar cells (DSSCs). Herein, CEs fabricated using Ag8GeS6 nanocrystal ink exhibited efficient electrocatalytic activity in the reduction of I3- to I- in DSSCs. The DSSC with the Ag8GeS6 CE displayed a higher power conversion efficiency of 8.10% than that with the Pt CE (8.02%). Moreover, the devices also showed the characteristics of fast activity onset, high multiple start/stop capability and good irradiation stability. The results indicated that the developed Ag8GeS6 CE could be a promising alternative to Pt CEs in DSSCs.

AB - Ternary metal sulfides could provide more alternatives and tune physicochemical properties due to the presence of two cations. However, only Co/Ni-based ternary sulfides have been explored as counter electrode (CE) materials for dye-sensitized solar cells (DSSCs). Herein, CEs fabricated using Ag8GeS6 nanocrystal ink exhibited efficient electrocatalytic activity in the reduction of I3- to I- in DSSCs. The DSSC with the Ag8GeS6 CE displayed a higher power conversion efficiency of 8.10% than that with the Pt CE (8.02%). Moreover, the devices also showed the characteristics of fast activity onset, high multiple start/stop capability and good irradiation stability. The results indicated that the developed Ag8GeS6 CE could be a promising alternative to Pt CEs in DSSCs.

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Efficient Ag₈GeS₆ counter electrode prepared from nanocrystal ink for dye-sensitized solar cells

Abstract

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