Synthesis of CdSe -- TiO2 Nanocomposites and Their Applications to TiO2 Sensitized Solar Cells

Jin Young Kim; Sung Bum Choi; Jun Hong Noh; Sung Hunyoon; Sangwook Lee; Tae Hoon Noh; Arthur J. Frank; Kug Sun Hong

doi:10.1021/la804310z

Synthesis of CdSe -- TiO2 Nanocomposites and Their Applications to TiO2 Sensitized Solar Cells

Jin Young Kim, Sung Bum Choi, Jun Hong Noh, Sung Hunyoon, Sangwook Lee, Tae Hoon Noh, Arthur J. Frank, Kug Sun Hong

Chemistry and Nanoscience

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

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Abstract

CdSe-TiO ₂ nanocomposites were synthesized via aminolysis of Ti-oleate complexes in the presence of CdSe nanocrystals, and their application as sensitizers for TiO ₂ solar cells was investigated. The formation of CdSe-TiO ₂ nanocomposites was confirmed using transmission electron microscopy and Raman spectroscopy. The emission spectrum of CdSe-TiO ₂ nanocomposites revealed photoinduced charge separation at the CdSe- TiO ₂ interface of the composite. The photocurrent-voltage properties of CdSe-TiO ₂-sensitized TiO ₂ particle films compared favorably with those of CdSe-sensitized TiO ₂ films. Evidence was also found indicating that the TiO ₂ component of the composite protects CdSe against degradation during film annealing.

Original language	American English
Pages (from-to)	5348-5351
Number of pages	4
Journal	Langmuir
Volume	25
Issue number	9
DOIs	https://doi.org/10.1021/la804310z https://doi.org/10.1021/la804310z
State	Published - 5 May 2009

NREL Publication Number

NREL/JA-270-46144

Keywords

basic sciences
materials science
nanomaterials

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abstract = "CdSe-TiO 2 nanocomposites were synthesized via aminolysis of Ti-oleate complexes in the presence of CdSe nanocrystals, and their application as sensitizers for TiO 2 solar cells was investigated. The formation of CdSe-TiO 2 nanocomposites was confirmed using transmission electron microscopy and Raman spectroscopy. The emission spectrum of CdSe-TiO 2 nanocomposites revealed photoinduced charge separation at the CdSe- TiO 2 interface of the composite. The photocurrent-voltage properties of CdSe-TiO 2-sensitized TiO 2 particle films compared favorably with those of CdSe-sensitized TiO 2 films. Evidence was also found indicating that the TiO 2 component of the composite protects CdSe against degradation during film annealing.",

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author = "Kim, {Jin Young} and Choi, {Sung Bum} and Noh, {Jun Hong} and Sung Hunyoon and Sangwook Lee and Noh, {Tae Hoon} and Frank, {Arthur J.} and Hong, {Kug Sun}",

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T1 - Synthesis of CdSe -- TiO2 Nanocomposites and Their Applications to TiO2 Sensitized Solar Cells

AU - Kim, Jin Young

AU - Choi, Sung Bum

AU - Noh, Jun Hong

AU - Hunyoon, Sung

AU - Lee, Sangwook

AU - Noh, Tae Hoon

AU - Frank, Arthur J.

AU - Hong, Kug Sun

PY - 2009/5/5

Y1 - 2009/5/5

N2 - CdSe-TiO 2 nanocomposites were synthesized via aminolysis of Ti-oleate complexes in the presence of CdSe nanocrystals, and their application as sensitizers for TiO 2 solar cells was investigated. The formation of CdSe-TiO 2 nanocomposites was confirmed using transmission electron microscopy and Raman spectroscopy. The emission spectrum of CdSe-TiO 2 nanocomposites revealed photoinduced charge separation at the CdSe- TiO 2 interface of the composite. The photocurrent-voltage properties of CdSe-TiO 2-sensitized TiO 2 particle films compared favorably with those of CdSe-sensitized TiO 2 films. Evidence was also found indicating that the TiO 2 component of the composite protects CdSe against degradation during film annealing.

AB - CdSe-TiO 2 nanocomposites were synthesized via aminolysis of Ti-oleate complexes in the presence of CdSe nanocrystals, and their application as sensitizers for TiO 2 solar cells was investigated. The formation of CdSe-TiO 2 nanocomposites was confirmed using transmission electron microscopy and Raman spectroscopy. The emission spectrum of CdSe-TiO 2 nanocomposites revealed photoinduced charge separation at the CdSe- TiO 2 interface of the composite. The photocurrent-voltage properties of CdSe-TiO 2-sensitized TiO 2 particle films compared favorably with those of CdSe-sensitized TiO 2 films. Evidence was also found indicating that the TiO 2 component of the composite protects CdSe against degradation during film annealing.

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Synthesis of CdSe -- TiO2 Nanocomposites and Their Applications to TiO2 Sensitized Solar Cells

Abstract

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