Synthesis of CdSe-TiO 2 nanocomposites and their applications to TiO 2 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-TiO ₂ nanocomposites and their applications to TiO ₂ 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

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

58 Citations (Scopus)

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	English
Pages (from-to)	5348-5351
Number of pages	4
Journal	Langmuir
Volume	25
Issue number	9
DOIs	https://doi.org/10.1021/la804310z
Publication status	Published - 2009 May 5
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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title = "Synthesis of CdSe-TiO 2 nanocomposites and their applications to TiO 2 sensitized solar cells",

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.",

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-TiO 2 nanocomposites and their applications to TiO 2 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-TiO ₂ nanocomposites and their applications to TiO ₂ sensitized solar cells

Abstract

ASJC Scopus subject areas

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