Growth of a WSe                         2                         /W counter electrode by sputtering and selenization annealing for high-efficiency dye-sensitized solar cells

Sajjad Hussain; Supriya A. Patil; Dhanasekaran Vikraman; Alvira Ayoub Arbab; Sung Hoon Jeong; Hak Sung Kim; Jongwan Jung

doi:10.1016/j.apsusc.2017.02.111

Growth of a WSe ₂ /W counter electrode by sputtering and selenization annealing for high-efficiency dye-sensitized solar cells

Sajjad Hussain
, Supriya A. Patil
, Dhanasekaran Vikraman
, Alvira Ayoub Arbab
, Sung Hoon Jeong
, Hak Sung Kim
, Jongwan Jung

Department of Electronics & Electrical Engineering

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

37 Scopus citations

Abstract

A chemically active and stable WSe ₂ /W structure was prepared by sputtering and selenization annealing in order to replace a high-cost Pt counter electrode in dye-sensitized solar cells. The CV, EIS analysis, and Tafel curve measurements indicated that the WSe ₂ /W electrode possesses high conductivity, low charge transfer resistance at the electrolyte-electrode interface, good electrocatalytic activity, and fast reaction kinetics for the a iodide/triiodide redox reaction, which are due to the synergistic effect of W and WSe ₂ in combination. The DSSC with a novel WSe ₂ /W counter electrode achieved a high power conversion efficiency of 8.22% under standard light illumination, which is comparable to that with a platinum (Pt)-coated FTO electrode (8.20%).

Original language	English
Pages (from-to)	84-90
Number of pages	7
Journal	Applied Surface Science
Volume	406
DOIs	https://doi.org/10.1016/j.apsusc.2017.02.111
State	Published - 1 Jun 2017

Keywords

Counter electrode
DSSC
Sputtering
WSe2

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10.1016/j.apsusc.2017.02.111

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Hussain, S., Patil, S. A., Vikraman, D., Arbab, A. A., Jeong, S. H., Kim, H. S., & Jung, J. (2017). Growth of a WSe ₂ /W counter electrode by sputtering and selenization annealing for high-efficiency dye-sensitized solar cells Applied Surface Science, 406, 84-90. https://doi.org/10.1016/j.apsusc.2017.02.111

@article{64a740b24520423a888efe213852f653,

title = " Growth of a WSe 2 /W counter electrode by sputtering and selenization annealing for high-efficiency dye-sensitized solar cells ",

abstract = " A chemically active and stable WSe 2 /W structure was prepared by sputtering and selenization annealing in order to replace a high-cost Pt counter electrode in dye-sensitized solar cells. The CV, EIS analysis, and Tafel curve measurements indicated that the WSe 2 /W electrode possesses high conductivity, low charge transfer resistance at the electrolyte-electrode interface, good electrocatalytic activity, and fast reaction kinetics for the a iodide/triiodide redox reaction, which are due to the synergistic effect of W and WSe 2 in combination. The DSSC with a novel WSe 2 /W counter electrode achieved a high power conversion efficiency of 8.22\% under standard light illumination, which is comparable to that with a platinum (Pt)-coated FTO electrode (8.20\%).",

keywords = "Counter electrode, DSSC, Sputtering, WSe2",

author = "Sajjad Hussain and Patil, \{Supriya A.\} and Dhanasekaran Vikraman and Arbab, \{Alvira Ayoub\} and Jeong, \{Sung Hoon\} and Kim, \{Hak Sung\} and Jongwan Jung",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = jun,

day = "1",

doi = "10.1016/j.apsusc.2017.02.111",

language = "English",

volume = "406",

pages = "84--90",

journal = "Applied Surface Science",

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Hussain, S, Patil, SA, Vikraman, D, Arbab, AA, Jeong, SH, Kim, HS & Jung, J 2017, ' Growth of a WSe ₂ /W counter electrode by sputtering and selenization annealing for high-efficiency dye-sensitized solar cells ', Applied Surface Science, vol. 406, pp. 84-90. https://doi.org/10.1016/j.apsusc.2017.02.111

Growth of a WSe ₂ /W counter electrode by sputtering and selenization annealing for high-efficiency dye-sensitized solar cells . / Hussain, Sajjad; Patil, Supriya A.; Vikraman, Dhanasekaran et al.
In: Applied Surface Science, Vol. 406, 01.06.2017, p. 84-90.

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

TY - JOUR

T1 - Growth of a WSe 2 /W counter electrode by sputtering and selenization annealing for high-efficiency dye-sensitized solar cells

AU - Hussain, Sajjad

AU - Patil, Supriya A.

AU - Vikraman, Dhanasekaran

AU - Arbab, Alvira Ayoub

AU - Jeong, Sung Hoon

AU - Kim, Hak Sung

AU - Jung, Jongwan

PY - 2017/6/1

Y1 - 2017/6/1

N2 - A chemically active and stable WSe 2 /W structure was prepared by sputtering and selenization annealing in order to replace a high-cost Pt counter electrode in dye-sensitized solar cells. The CV, EIS analysis, and Tafel curve measurements indicated that the WSe 2 /W electrode possesses high conductivity, low charge transfer resistance at the electrolyte-electrode interface, good electrocatalytic activity, and fast reaction kinetics for the a iodide/triiodide redox reaction, which are due to the synergistic effect of W and WSe 2 in combination. The DSSC with a novel WSe 2 /W counter electrode achieved a high power conversion efficiency of 8.22% under standard light illumination, which is comparable to that with a platinum (Pt)-coated FTO electrode (8.20%).

AB - A chemically active and stable WSe 2 /W structure was prepared by sputtering and selenization annealing in order to replace a high-cost Pt counter electrode in dye-sensitized solar cells. The CV, EIS analysis, and Tafel curve measurements indicated that the WSe 2 /W electrode possesses high conductivity, low charge transfer resistance at the electrolyte-electrode interface, good electrocatalytic activity, and fast reaction kinetics for the a iodide/triiodide redox reaction, which are due to the synergistic effect of W and WSe 2 in combination. The DSSC with a novel WSe 2 /W counter electrode achieved a high power conversion efficiency of 8.22% under standard light illumination, which is comparable to that with a platinum (Pt)-coated FTO electrode (8.20%).

KW - Counter electrode

KW - DSSC

KW - Sputtering

KW - WSe2

UR - https://www.scopus.com/pages/publications/85013839008

U2 - 10.1016/j.apsusc.2017.02.111

DO - 10.1016/j.apsusc.2017.02.111

M3 - Article

AN - SCOPUS:85013839008

SN - 0169-4332

VL - 406

SP - 84

EP - 90

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Growth of a WSe ₂ /W counter electrode by sputtering and selenization annealing for high-efficiency dye-sensitized solar cells

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Keywords

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