Cu@C dispersed TiO2 for dye-sensitized solar cell photoanodes

H. Y. Kang; H. Paul Wang

doi:10.1016/j.apenergy.2012.03.004

Cu@C dispersed TiO₂ for dye-sensitized solar cell photoanodes

H. Y. Kang, H. Paul Wang

Department of Environmental Engineering

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

22 Citations (Scopus)

Abstract

Nanosize copper embedded in the inert carbon shell (Cu@C) prepared by carbonization of Cu²⁺-β-CD at 573K was dispersed in TiO₂. The Cu@C (0.1% and 0.3%) dispersed TiO₂ was used in assembling of photoanodes for dye-sensitized solar cells (DSSCs). By small angle X-ray scattering (SAXS) spectroscopy, it is found that the Cu@C dispersed TiO₂ having an average Cu diameter of 18.3nm and carbon shell thickness of 3-5nm. Larger Cu nanoparticles having an average diameter of 24.5nm in TiO₂ was formed when their carbon shells were steam reformed at 673K. The Cu nanoparticles having a spherical shape are well dispersed in TiO₂, which significantly enhance the photo-excited electron transfer for the DSSC. Notably, the Cu dispersed TiO₂ photoanode has a greater efficiency than the pure TiO₂ one by at least 23%. This work exemplifies a simple and novel alternative to enhance DSSC efficiencies.

Original language	English
Pages (from-to)	144-147
Number of pages	4
Journal	Applied Energy
Volume	100
DOIs	https://doi.org/10.1016/j.apenergy.2012.03.004
Publication status	Published - 2012 Dec

All Science Journal Classification (ASJC) codes

Building and Construction
General Energy
Mechanical Engineering
Management, Monitoring, Policy and Law

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10.1016/j.apenergy.2012.03.004

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title = "Cu@C dispersed TiO2 for dye-sensitized solar cell photoanodes",

abstract = "Nanosize copper embedded in the inert carbon shell (Cu@C) prepared by carbonization of Cu2+-β-CD at 573K was dispersed in TiO2. The Cu@C (0.1% and 0.3%) dispersed TiO2 was used in assembling of photoanodes for dye-sensitized solar cells (DSSCs). By small angle X-ray scattering (SAXS) spectroscopy, it is found that the Cu@C dispersed TiO2 having an average Cu diameter of 18.3nm and carbon shell thickness of 3-5nm. Larger Cu nanoparticles having an average diameter of 24.5nm in TiO2 was formed when their carbon shells were steam reformed at 673K. The Cu nanoparticles having a spherical shape are well dispersed in TiO2, which significantly enhance the photo-excited electron transfer for the DSSC. Notably, the Cu dispersed TiO2 photoanode has a greater efficiency than the pure TiO2 one by at least 23%. This work exemplifies a simple and novel alternative to enhance DSSC efficiencies.",

author = "Kang, {H. Y.} and Wang, {H. Paul}",

note = "Funding Information: The financial supports of the Taiwan National Science Council, Bureau of Energy, Excellence Project of the National Cheng Kung University, and National Synchrotron Radiation Research Center are gratefully acknowledged. ",

year = "2012",

month = dec,

doi = "10.1016/j.apenergy.2012.03.004",

language = "English",

volume = "100",

pages = "144--147",

journal = "Applied Energy",

issn = "0306-2619",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Cu@C dispersed TiO2 for dye-sensitized solar cell photoanodes

AU - Kang, H. Y.

AU - Wang, H. Paul

N1 - Funding Information: The financial supports of the Taiwan National Science Council, Bureau of Energy, Excellence Project of the National Cheng Kung University, and National Synchrotron Radiation Research Center are gratefully acknowledged.

PY - 2012/12

Y1 - 2012/12

N2 - Nanosize copper embedded in the inert carbon shell (Cu@C) prepared by carbonization of Cu2+-β-CD at 573K was dispersed in TiO2. The Cu@C (0.1% and 0.3%) dispersed TiO2 was used in assembling of photoanodes for dye-sensitized solar cells (DSSCs). By small angle X-ray scattering (SAXS) spectroscopy, it is found that the Cu@C dispersed TiO2 having an average Cu diameter of 18.3nm and carbon shell thickness of 3-5nm. Larger Cu nanoparticles having an average diameter of 24.5nm in TiO2 was formed when their carbon shells were steam reformed at 673K. The Cu nanoparticles having a spherical shape are well dispersed in TiO2, which significantly enhance the photo-excited electron transfer for the DSSC. Notably, the Cu dispersed TiO2 photoanode has a greater efficiency than the pure TiO2 one by at least 23%. This work exemplifies a simple and novel alternative to enhance DSSC efficiencies.

AB - Nanosize copper embedded in the inert carbon shell (Cu@C) prepared by carbonization of Cu2+-β-CD at 573K was dispersed in TiO2. The Cu@C (0.1% and 0.3%) dispersed TiO2 was used in assembling of photoanodes for dye-sensitized solar cells (DSSCs). By small angle X-ray scattering (SAXS) spectroscopy, it is found that the Cu@C dispersed TiO2 having an average Cu diameter of 18.3nm and carbon shell thickness of 3-5nm. Larger Cu nanoparticles having an average diameter of 24.5nm in TiO2 was formed when their carbon shells were steam reformed at 673K. The Cu nanoparticles having a spherical shape are well dispersed in TiO2, which significantly enhance the photo-excited electron transfer for the DSSC. Notably, the Cu dispersed TiO2 photoanode has a greater efficiency than the pure TiO2 one by at least 23%. This work exemplifies a simple and novel alternative to enhance DSSC efficiencies.

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U2 - 10.1016/j.apenergy.2012.03.004

DO - 10.1016/j.apenergy.2012.03.004

M3 - Article

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SN - 0306-2619

VL - 100

SP - 144

EP - 147

JO - Applied Energy

JF - Applied Energy

ER -

Cu@C dispersed TiO₂ for dye-sensitized solar cell photoanodes

Abstract

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