ZnCdSe-sensitized WO3 and TiO2 based photoelectrodes: A Comparative Study

Ruchi Gakhar; Dev Chidambaram

doi:10.1149/06912.0033ecst

ZnCdSe-sensitized WO₃ and TiO₂ based photoelectrodes: A Comparative Study

Ruchi Gakhar
, Dev Chidambaram

Nuclear Science & Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This study compares the characteristics of photoelectrodes obtained by sensitization of two different oxide semiconductors (TiO₂ and WO₃) with same ternary quantum dots for the first time. TiO₂ nanotube arrays were obtained using electrochemical anodization technique while the porous WO₃ thin film was spray deposited onto SnO₂:F substrate. The ZnCdSe quantum dots were tethered to the oxide substrates employing successive ionic layer adsorption and reaction technique. The influence of the number of deposition cycles on photoelectrochemical properties of sensitized oxide films was investigated. The results obtained show that ZnCdSe sensitized TiO₂ nanotube array based photoelectrodes exhibit superior performance compared to ZnCdSe sensitized WO₃ films under similar conditions.

Original language	English
Title of host publication	Low-Dimensional Nanoscale Electronic and Photonic Devices 8
Editors	Y. L. Chueh, C. O'Dwyer, M. Suzuki, S. Jin, S. W. Kim, J. H. He, J. C. Ho, Z. Fan, Q. Li, G. W. Hunter, K. Takei
Publisher	Electrochemical Society Inc.
Pages	33-45
Number of pages	13
Edition	12
ISBN (Electronic)	9781607685395
DOIs	https://doi.org/10.1149/06912.0033ecst
State	Published - 2015
Event	Symposium on Low-Dimensional Nanoscale Electronic and Photonic Devices 8 - 228th ECS Meeting - Phoenix, United States Duration: Oct 11 2015 → Oct 15 2015

Publication series

Name	ECS Transactions
Number	12
Volume	69
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	Symposium on Low-Dimensional Nanoscale Electronic and Photonic Devices 8 - 228th ECS Meeting
Country/Territory	United States
City	Phoenix
Period	10/11/15 → 10/15/15

Access to Document

10.1149/06912.0033ecst

Cite this

Gakhar, R., & Chidambaram, D. (2015). ZnCdSe-sensitized WO₃ and TiO₂ based photoelectrodes: A Comparative Study. In Y. L. Chueh, C. O'Dwyer, M. Suzuki, S. Jin, S. W. Kim, J. H. He, J. C. Ho, Z. Fan, Q. Li, G. W. Hunter, & K. Takei (Eds.), Low-Dimensional Nanoscale Electronic and Photonic Devices 8 (12 ed., pp. 33-45). (ECS Transactions; Vol. 69, No. 12). Electrochemical Society Inc.. https://doi.org/10.1149/06912.0033ecst

Gakhar, Ruchi ; Chidambaram, Dev. / ZnCdSe-sensitized WO₃ and TiO₂ based photoelectrodes : A Comparative Study. Low-Dimensional Nanoscale Electronic and Photonic Devices 8. editor / Y. L. Chueh ; C. O'Dwyer ; M. Suzuki ; S. Jin ; S. W. Kim ; J. H. He ; J. C. Ho ; Z. Fan ; Q. Li ; G. W. Hunter ; K. Takei. 12. ed. Electrochemical Society Inc., 2015. pp. 33-45 (ECS Transactions; 12).

@inproceedings{e3b14197cc5b4aa0903be7ca5285d0e8,

title = "ZnCdSe-sensitized WO3 and TiO2 based photoelectrodes: A Comparative Study",

abstract = "This study compares the characteristics of photoelectrodes obtained by sensitization of two different oxide semiconductors (TiO2 and WO3) with same ternary quantum dots for the first time. TiO2 nanotube arrays were obtained using electrochemical anodization technique while the porous WO3 thin film was spray deposited onto SnO2:F substrate. The ZnCdSe quantum dots were tethered to the oxide substrates employing successive ionic layer adsorption and reaction technique. The influence of the number of deposition cycles on photoelectrochemical properties of sensitized oxide films was investigated. The results obtained show that ZnCdSe sensitized TiO2 nanotube array based photoelectrodes exhibit superior performance compared to ZnCdSe sensitized WO3 films under similar conditions.",

author = "Ruchi Gakhar and Dev Chidambaram",

note = "Publisher Copyright: {\textcopyright} 2015 The Electrochemical Society.; Symposium on Low-Dimensional Nanoscale Electronic and Photonic Devices 8 - 228th ECS Meeting ; Conference date: 11-10-2015 Through 15-10-2015",

year = "2015",

doi = "10.1149/06912.0033ecst",

language = "English",

series = "ECS Transactions",

publisher = "Electrochemical Society Inc.",

number = "12",

pages = "33--45",

editor = "Chueh, \{Y. L.\} and C. O'Dwyer and M. Suzuki and S. Jin and Kim, \{S. W.\} and He, \{J. H.\} and Ho, \{J. C.\} and Z. Fan and Q. Li and Hunter, \{G. W.\} and K. Takei",

booktitle = "Low-Dimensional Nanoscale Electronic and Photonic Devices 8",

edition = "12",

}

Gakhar, R & Chidambaram, D 2015, ZnCdSe-sensitized WO₃ and TiO₂ based photoelectrodes: A Comparative Study. in YL Chueh, C O'Dwyer, M Suzuki, S Jin, SW Kim, JH He, JC Ho, Z Fan, Q Li, GW Hunter & K Takei (eds), Low-Dimensional Nanoscale Electronic and Photonic Devices 8. 12 edn, ECS Transactions, no. 12, vol. 69, Electrochemical Society Inc., pp. 33-45, Symposium on Low-Dimensional Nanoscale Electronic and Photonic Devices 8 - 228th ECS Meeting, Phoenix, United States, 10/11/15. https://doi.org/10.1149/06912.0033ecst

ZnCdSe-sensitized WO₃ and TiO₂ based photoelectrodes: A Comparative Study. / Gakhar, Ruchi; Chidambaram, Dev.
Low-Dimensional Nanoscale Electronic and Photonic Devices 8. ed. / Y. L. Chueh; C. O'Dwyer; M. Suzuki; S. Jin; S. W. Kim; J. H. He; J. C. Ho; Z. Fan; Q. Li; G. W. Hunter; K. Takei. 12. ed. Electrochemical Society Inc., 2015. p. 33-45 (ECS Transactions; Vol. 69, No. 12).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - ZnCdSe-sensitized WO3 and TiO2 based photoelectrodes

T2 - Symposium on Low-Dimensional Nanoscale Electronic and Photonic Devices 8 - 228th ECS Meeting

AU - Gakhar, Ruchi

AU - Chidambaram, Dev

PY - 2015

Y1 - 2015

N2 - This study compares the characteristics of photoelectrodes obtained by sensitization of two different oxide semiconductors (TiO2 and WO3) with same ternary quantum dots for the first time. TiO2 nanotube arrays were obtained using electrochemical anodization technique while the porous WO3 thin film was spray deposited onto SnO2:F substrate. The ZnCdSe quantum dots were tethered to the oxide substrates employing successive ionic layer adsorption and reaction technique. The influence of the number of deposition cycles on photoelectrochemical properties of sensitized oxide films was investigated. The results obtained show that ZnCdSe sensitized TiO2 nanotube array based photoelectrodes exhibit superior performance compared to ZnCdSe sensitized WO3 films under similar conditions.

AB - This study compares the characteristics of photoelectrodes obtained by sensitization of two different oxide semiconductors (TiO2 and WO3) with same ternary quantum dots for the first time. TiO2 nanotube arrays were obtained using electrochemical anodization technique while the porous WO3 thin film was spray deposited onto SnO2:F substrate. The ZnCdSe quantum dots were tethered to the oxide substrates employing successive ionic layer adsorption and reaction technique. The influence of the number of deposition cycles on photoelectrochemical properties of sensitized oxide films was investigated. The results obtained show that ZnCdSe sensitized TiO2 nanotube array based photoelectrodes exhibit superior performance compared to ZnCdSe sensitized WO3 films under similar conditions.

UR - https://www.scopus.com/pages/publications/84945976469

U2 - 10.1149/06912.0033ecst

DO - 10.1149/06912.0033ecst

M3 - Conference contribution

AN - SCOPUS:84945976469

T3 - ECS Transactions

SP - 33

EP - 45

BT - Low-Dimensional Nanoscale Electronic and Photonic Devices 8

A2 - Chueh, Y. L.

A2 - O'Dwyer, C.

A2 - Suzuki, M.

A2 - Jin, S.

A2 - Kim, S. W.

A2 - He, J. H.

A2 - Ho, J. C.

A2 - Fan, Z.

A2 - Li, Q.

A2 - Hunter, G. W.

A2 - Takei, K.

PB - Electrochemical Society Inc.

Y2 - 11 October 2015 through 15 October 2015

ER -