Optical parameters and work function of Zn-In-Sn-O films

Seunghun Lee; Hyomin Park; Young Do Kim; Sung Ju Tark; Yoonmook Kang; Won Mok Kim; Hae Seok Lee; Donghwan Kim

doi:10.1016/j.cap.2014.12.009

Optical parameters and work function of Zn-In-Sn-O films

Seunghun Lee, Hyomin Park, Young Do Kim, Sung Ju Tark, Yoonmook Kang, Won Mok Kim, Hae Seok Lee, Donghwan Kim

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

4 Citations (Scopus)

Abstract

The work function behavior of Zn-In-Sn-O (ZITO) films with various Zn and Sn contents were studied. The work function increased with addition of Zn content. With further increase of Zn contents, the work function gradually decreased. The work function behavior can be investigated by (1) Fermi level position relative the carrier concentration, (2) ionization potential by the surface dipole change. The Fermi level position related the carrier concentration was calculated by Drude parameters, and ionization potential measured by UPS. As results, we confirmed that the work function of ZITO may be linked to changes in ionization potential, not carrier concentration.

Original language	English
Pages (from-to)	238-241
Number of pages	4
Journal	Current Applied Physics
Volume	15
Issue number	3
DOIs	https://doi.org/10.1016/j.cap.2014.12.009
Publication status	Published - 2015 Mar

Bibliographical note

Funding Information:
This work was supported by the Human Resources Development Program (No. 20124030200120 ) and by the New & Renewable Energy Core Technology Program (No. 20133010011780 ) of the Korea Institute of Energy, Technology, Evaluation and Planning (KETEP) under the auspices of the Ministry of Trade, Industry and Energy, Republic of Korea . And this work was supported by the Korea University Grant .

Keywords

Heterojunction solar cell
ITO
Sputter
Work function
Zn-In-Sn-O

ASJC Scopus subject areas

General Materials Science
General Physics and Astronomy

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10.1016/j.cap.2014.12.009

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title = "Optical parameters and work function of Zn-In-Sn-O films",

abstract = "The work function behavior of Zn-In-Sn-O (ZITO) films with various Zn and Sn contents were studied. The work function increased with addition of Zn content. With further increase of Zn contents, the work function gradually decreased. The work function behavior can be investigated by (1) Fermi level position relative the carrier concentration, (2) ionization potential by the surface dipole change. The Fermi level position related the carrier concentration was calculated by Drude parameters, and ionization potential measured by UPS. As results, we confirmed that the work function of ZITO may be linked to changes in ionization potential, not carrier concentration.",

keywords = "Heterojunction solar cell, ITO, Sputter, Work function, Zn-In-Sn-O",

author = "Seunghun Lee and Hyomin Park and Kim, {Young Do} and Tark, {Sung Ju} and Yoonmook Kang and Kim, {Won Mok} and Lee, {Hae Seok} and Donghwan Kim",

note = "Funding Information: This work was supported by the Human Resources Development Program (No. 20124030200120 ) and by the New & Renewable Energy Core Technology Program (No. 20133010011780 ) of the Korea Institute of Energy, Technology, Evaluation and Planning (KETEP) under the auspices of the Ministry of Trade, Industry and Energy, Republic of Korea . And this work was supported by the Korea University Grant .",

year = "2015",

month = mar,

doi = "10.1016/j.cap.2014.12.009",

language = "English",

volume = "15",

pages = "238--241",

journal = "Current Applied Physics",

issn = "1567-1739",

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TY - JOUR

T1 - Optical parameters and work function of Zn-In-Sn-O films

AU - Lee, Seunghun

AU - Park, Hyomin

AU - Kim, Young Do

AU - Tark, Sung Ju

AU - Kang, Yoonmook

AU - Kim, Won Mok

AU - Lee, Hae Seok

AU - Kim, Donghwan

N1 - Funding Information: This work was supported by the Human Resources Development Program (No. 20124030200120 ) and by the New & Renewable Energy Core Technology Program (No. 20133010011780 ) of the Korea Institute of Energy, Technology, Evaluation and Planning (KETEP) under the auspices of the Ministry of Trade, Industry and Energy, Republic of Korea . And this work was supported by the Korea University Grant .

PY - 2015/3

Y1 - 2015/3

N2 - The work function behavior of Zn-In-Sn-O (ZITO) films with various Zn and Sn contents were studied. The work function increased with addition of Zn content. With further increase of Zn contents, the work function gradually decreased. The work function behavior can be investigated by (1) Fermi level position relative the carrier concentration, (2) ionization potential by the surface dipole change. The Fermi level position related the carrier concentration was calculated by Drude parameters, and ionization potential measured by UPS. As results, we confirmed that the work function of ZITO may be linked to changes in ionization potential, not carrier concentration.

AB - The work function behavior of Zn-In-Sn-O (ZITO) films with various Zn and Sn contents were studied. The work function increased with addition of Zn content. With further increase of Zn contents, the work function gradually decreased. The work function behavior can be investigated by (1) Fermi level position relative the carrier concentration, (2) ionization potential by the surface dipole change. The Fermi level position related the carrier concentration was calculated by Drude parameters, and ionization potential measured by UPS. As results, we confirmed that the work function of ZITO may be linked to changes in ionization potential, not carrier concentration.

KW - Heterojunction solar cell

KW - ITO

KW - Sputter

KW - Work function

KW - Zn-In-Sn-O

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JO - Current Applied Physics

JF - Current Applied Physics

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Optical parameters and work function of Zn-In-Sn-O films

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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