Photoelectric performance of TiO                         2                          nanotube array photoelectrodes sensitized with CdS                         0.54                         Se                         0.46                          quantum dots

Ruchi Gakhar; York R. Smith; Mano Misra; Dev Chidambaram

doi:10.1016/j.apsusc.2015.07.169

Photoelectric performance of TiO ₂ nanotube array photoelectrodes sensitized with CdS _0.54 Se _0.46 quantum dots

Ruchi Gakhar, York R. Smith, Mano Misra, Dev Chidambaram

Nuclear Science & Technology

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

30 Scopus citations

Abstract

The photoelectrochemical performance of CdSSe quantum dots tethered to a framework of vertically oriented titania (TiO ₂ ) nanotubes was studied. The TiO ₂ /CdSSe framework demonstrated improved charge transfer due to its unique band edge structure, thus validating the higher photocurrent generation. The composite film led to an 11-fold enhancement in comparison to the control TiO ₂ film, implying that the ternary quantum dots and the nanotubular structure of TiO ₂ work in tandem to promote charge separation and favorably impact photoelectrochemical performance. Further, the results also suggest that structural and optoelectronic properties of TiO ₂ films are significantly affected by the thicknesses of the CdSSe layer.

Original language	English
Pages (from-to)	1279-1288
Number of pages	10
Journal	Applied Surface Science
Volume	355
DOIs	https://doi.org/10.1016/j.apsusc.2015.07.169
State	Published - Nov 15 2015

Keywords

Anodization
CdS Se quantum dots
Photoelectrochemical
SILAR
TiO nanotubes

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10.1016/j.apsusc.2015.07.169

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Gakhar, R., Smith, Y. R., Misra, M., & Chidambaram, D. (2015). Photoelectric performance of TiO ₂ nanotube array photoelectrodes sensitized with CdS _0.54 Se _0.46 quantum dots Applied Surface Science, 355, 1279-1288. https://doi.org/10.1016/j.apsusc.2015.07.169

Gakhar, Ruchi ; Smith, York R. ; Misra, Mano et al. / Photoelectric performance of TiO ₂ nanotube array photoelectrodes sensitized with CdS _0.54 Se _0.46 quantum dots In: Applied Surface Science. 2015 ; Vol. 355. pp. 1279-1288.

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title = " Photoelectric performance of TiO 2 nanotube array photoelectrodes sensitized with CdS 0.54 Se 0.46 quantum dots ",

abstract = " The photoelectrochemical performance of CdSSe quantum dots tethered to a framework of vertically oriented titania (TiO 2 ) nanotubes was studied. The TiO 2 /CdSSe framework demonstrated improved charge transfer due to its unique band edge structure, thus validating the higher photocurrent generation. The composite film led to an 11-fold enhancement in comparison to the control TiO 2 film, implying that the ternary quantum dots and the nanotubular structure of TiO 2 work in tandem to promote charge separation and favorably impact photoelectrochemical performance. Further, the results also suggest that structural and optoelectronic properties of TiO 2 films are significantly affected by the thicknesses of the CdSSe layer.",

keywords = "Anodization, CdS Se quantum dots, Photoelectrochemical, SILAR, TiO nanotubes",

author = "Ruchi Gakhar and Smith, {York R.} and Mano Misra and Dev Chidambaram",

year = "2015",

month = nov,

day = "15",

doi = "10.1016/j.apsusc.2015.07.169",

language = "English",

volume = "355",

pages = "1279--1288",

journal = "Applied Surface Science",

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}

Gakhar, R, Smith, YR, Misra, M & Chidambaram, D 2015, ' Photoelectric performance of TiO ₂ nanotube array photoelectrodes sensitized with CdS _0.54 Se _0.46 quantum dots ', Applied Surface Science, vol. 355, pp. 1279-1288. https://doi.org/10.1016/j.apsusc.2015.07.169

Photoelectric performance of TiO ₂ nanotube array photoelectrodes sensitized with CdS _0.54 Se _0.46 quantum dots . / Gakhar, Ruchi; Smith, York R.; Misra, Mano et al.
In: Applied Surface Science, Vol. 355, 15.11.2015, p. 1279-1288.

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

TY - JOUR

T1 - Photoelectric performance of TiO 2 nanotube array photoelectrodes sensitized with CdS 0.54 Se 0.46 quantum dots

AU - Gakhar, Ruchi

AU - Smith, York R.

AU - Misra, Mano

AU - Chidambaram, Dev

PY - 2015/11/15

Y1 - 2015/11/15

N2 - The photoelectrochemical performance of CdSSe quantum dots tethered to a framework of vertically oriented titania (TiO 2 ) nanotubes was studied. The TiO 2 /CdSSe framework demonstrated improved charge transfer due to its unique band edge structure, thus validating the higher photocurrent generation. The composite film led to an 11-fold enhancement in comparison to the control TiO 2 film, implying that the ternary quantum dots and the nanotubular structure of TiO 2 work in tandem to promote charge separation and favorably impact photoelectrochemical performance. Further, the results also suggest that structural and optoelectronic properties of TiO 2 films are significantly affected by the thicknesses of the CdSSe layer.

AB - The photoelectrochemical performance of CdSSe quantum dots tethered to a framework of vertically oriented titania (TiO 2 ) nanotubes was studied. The TiO 2 /CdSSe framework demonstrated improved charge transfer due to its unique band edge structure, thus validating the higher photocurrent generation. The composite film led to an 11-fold enhancement in comparison to the control TiO 2 film, implying that the ternary quantum dots and the nanotubular structure of TiO 2 work in tandem to promote charge separation and favorably impact photoelectrochemical performance. Further, the results also suggest that structural and optoelectronic properties of TiO 2 films are significantly affected by the thicknesses of the CdSSe layer.

KW - Anodization

KW - CdS Se quantum dots

KW - Photoelectrochemical

KW - SILAR

KW - TiO nanotubes

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DO - 10.1016/j.apsusc.2015.07.169

M3 - Article

AN - SCOPUS:84944339341

SN - 0169-4332

VL - 355

SP - 1279

EP - 1288

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Gakhar R, Smith YR, Misra M, Chidambaram D. Photoelectric performance of TiO ₂ nanotube array photoelectrodes sensitized with CdS _0.54 Se _0.46 quantum dots Applied Surface Science. 2015 Nov 15;355:1279-1288. doi: 10.1016/j.apsusc.2015.07.169

Photoelectric performance of TiO ₂ nanotube array photoelectrodes sensitized with CdS _0.54 Se _0.46 quantum dots

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