All-solid-state dye-sensitized solar cells with high efficiency

In Chung, Byunghong Lee, Jiaqing He, Robert P. H. Chang, Mercouri G Kanatzidis

Research output: Contribution to journalArticle

1020 Citations (Scopus)

Abstract

Dye-sensitized solar cells based on titanium dioxide (TiO2) are promising low-cost alternatives to conventional solid-state photovoltaic devices based on materials such as Si, CdTe and CuIn1-x Gax Se2 (refs 1, 2). Despite offering relatively high conversion efficiencies for solar energy, typical dye-sensitized solar cells suffer from durability problems that result from their use of organic liquid electrolytes containing the iodide/tri-iodide redox couple, which causes serious problems such as electrode corrosion and electrolyte leakage. Replacements for iodine-based liquid electrolytes have been extensively studied, but the efficiencies of the resulting devices remain low. Here we show that the solution-processable p-type direct bandgap semiconductor CsSnI 3 can be used for hole conduction in lieu of a liquid electrolyte. The resulting solid-state dye-sensitized solar cells consist of CsSnI 2.95 F 0.05 doped with SnF 2, nanoporous TiO2 and the dye N719, and show conversion efficiencies of up to 10.2 per cent (8.51 per cent with a mask). With a bandgap of 1.3 electronvolts, CsSnI 3 enhances visible light absorption on the red side of the spectrum to outperform the typical dye-sensitized solar cells in this spectral region.

Original languageEnglish
Pages (from-to)486-489
Number of pages4
JournalNature
Volume485
Issue number7399
DOIs
Publication statusPublished - May 24 2012

Fingerprint

Coloring Agents
Electrolytes
Iodides
Solar Energy
Equipment and Supplies
Semiconductors
Corrosion
Masks
Iodine
Oxidation-Reduction
Electrodes
Light
Costs and Cost Analysis

ASJC Scopus subject areas

  • General

Cite this

All-solid-state dye-sensitized solar cells with high efficiency. / Chung, In; Lee, Byunghong; He, Jiaqing; Chang, Robert P. H.; Kanatzidis, Mercouri G.

In: Nature, Vol. 485, No. 7399, 24.05.2012, p. 486-489.

Research output: Contribution to journalArticle

Chung, In ; Lee, Byunghong ; He, Jiaqing ; Chang, Robert P. H. ; Kanatzidis, Mercouri G. / All-solid-state dye-sensitized solar cells with high efficiency. In: Nature. 2012 ; Vol. 485, No. 7399. pp. 486-489.
@article{b6d08aeb93a34556810ef485c4d29fdd,
title = "All-solid-state dye-sensitized solar cells with high efficiency",
abstract = "Dye-sensitized solar cells based on titanium dioxide (TiO2) are promising low-cost alternatives to conventional solid-state photovoltaic devices based on materials such as Si, CdTe and CuIn1-x Gax Se2 (refs 1, 2). Despite offering relatively high conversion efficiencies for solar energy, typical dye-sensitized solar cells suffer from durability problems that result from their use of organic liquid electrolytes containing the iodide/tri-iodide redox couple, which causes serious problems such as electrode corrosion and electrolyte leakage. Replacements for iodine-based liquid electrolytes have been extensively studied, but the efficiencies of the resulting devices remain low. Here we show that the solution-processable p-type direct bandgap semiconductor CsSnI 3 can be used for hole conduction in lieu of a liquid electrolyte. The resulting solid-state dye-sensitized solar cells consist of CsSnI 2.95 F 0.05 doped with SnF 2, nanoporous TiO2 and the dye N719, and show conversion efficiencies of up to 10.2 per cent (8.51 per cent with a mask). With a bandgap of 1.3 electronvolts, CsSnI 3 enhances visible light absorption on the red side of the spectrum to outperform the typical dye-sensitized solar cells in this spectral region.",
author = "In Chung and Byunghong Lee and Jiaqing He and Chang, {Robert P. H.} and Kanatzidis, {Mercouri G}",
year = "2012",
month = "5",
day = "24",
doi = "10.1038/nature11067",
language = "English",
volume = "485",
pages = "486--489",
journal = "Nature",
issn = "0028-0836",
publisher = "Nature Publishing Group",
number = "7399",

}

TY - JOUR

T1 - All-solid-state dye-sensitized solar cells with high efficiency

AU - Chung, In

AU - Lee, Byunghong

AU - He, Jiaqing

AU - Chang, Robert P. H.

AU - Kanatzidis, Mercouri G

PY - 2012/5/24

Y1 - 2012/5/24

N2 - Dye-sensitized solar cells based on titanium dioxide (TiO2) are promising low-cost alternatives to conventional solid-state photovoltaic devices based on materials such as Si, CdTe and CuIn1-x Gax Se2 (refs 1, 2). Despite offering relatively high conversion efficiencies for solar energy, typical dye-sensitized solar cells suffer from durability problems that result from their use of organic liquid electrolytes containing the iodide/tri-iodide redox couple, which causes serious problems such as electrode corrosion and electrolyte leakage. Replacements for iodine-based liquid electrolytes have been extensively studied, but the efficiencies of the resulting devices remain low. Here we show that the solution-processable p-type direct bandgap semiconductor CsSnI 3 can be used for hole conduction in lieu of a liquid electrolyte. The resulting solid-state dye-sensitized solar cells consist of CsSnI 2.95 F 0.05 doped with SnF 2, nanoporous TiO2 and the dye N719, and show conversion efficiencies of up to 10.2 per cent (8.51 per cent with a mask). With a bandgap of 1.3 electronvolts, CsSnI 3 enhances visible light absorption on the red side of the spectrum to outperform the typical dye-sensitized solar cells in this spectral region.

AB - Dye-sensitized solar cells based on titanium dioxide (TiO2) are promising low-cost alternatives to conventional solid-state photovoltaic devices based on materials such as Si, CdTe and CuIn1-x Gax Se2 (refs 1, 2). Despite offering relatively high conversion efficiencies for solar energy, typical dye-sensitized solar cells suffer from durability problems that result from their use of organic liquid electrolytes containing the iodide/tri-iodide redox couple, which causes serious problems such as electrode corrosion and electrolyte leakage. Replacements for iodine-based liquid electrolytes have been extensively studied, but the efficiencies of the resulting devices remain low. Here we show that the solution-processable p-type direct bandgap semiconductor CsSnI 3 can be used for hole conduction in lieu of a liquid electrolyte. The resulting solid-state dye-sensitized solar cells consist of CsSnI 2.95 F 0.05 doped with SnF 2, nanoporous TiO2 and the dye N719, and show conversion efficiencies of up to 10.2 per cent (8.51 per cent with a mask). With a bandgap of 1.3 electronvolts, CsSnI 3 enhances visible light absorption on the red side of the spectrum to outperform the typical dye-sensitized solar cells in this spectral region.

UR - http://www.scopus.com/inward/record.url?scp=84861417492&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84861417492&partnerID=8YFLogxK

U2 - 10.1038/nature11067

DO - 10.1038/nature11067

M3 - Article

C2 - 22622574

AN - SCOPUS:84861417492

VL - 485

SP - 486

EP - 489

JO - Nature

JF - Nature

SN - 0028-0836

IS - 7399

ER -