Effects of ultraviolet-ozone treatment on organic-stabilized ZnO nanoparticle-based electron transporting layers in inverted polymer solar cells

被引：33

作者：

Cho, Jung Min ^{[1
]}

Kwak, Sun-Woo ^{[1
]}

Aqoma, Havid ^{[2
]}

Kim, Joon Woo ^{[1
]}

Shin, Won Suk ^{[3
]}

Moon, Sang-Jin ^{[3
]}

Jang, Sung-Yeon ^{[2
]}

Jo, Jeongdai ^{[1
]}

机构：

[1] Korea Inst Machinery & Mat, Res Ctr, Dept Printed Elect, Taejon 305343, South Korea

[2] Kookmin Univ, Dept Chem, Seoul 136702, South Korea

[3] Korea Res Inst Chem Technol, Energy Mat Res Ctr, Taejon 305600, South Korea

来源：

ORGANIC ELECTRONICS | 2014年 / 15卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

Inverted polymer solar cell; ZnO nanoparticle; Ultraviolet; ozone treatment; Electron transporting layer; UV induced decomposition mechanism; UV-OZONE; PHOTOVOLTAIC PERFORMANCE; OPTICAL-PROPERTIES; BUFFER LAYER; XPS;

D O I：

10.1016/j.orgel.2014.05.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electron transporting layers (ETLs) in inverted polymer solar cells (I-PSCs) were fabricated by spin coating a colloidal dispersion of ZnO nanoparticles (NPs), and the effects of ultraviolet-ozone (UVO) treatment on the ZnO NP ETLs were investigated. The brief UVO treatment (<5 min) could considerably improve the performance of the resulting I-PSCs (similar to 30% increase in power conversion efficiency); whereas, excessive UVO treatment (>10 min) caused significant degradation. The characterization of the ZnO ETLs as a function of the UVO treatment duration revealed that brief treatment can remove the residual organic stabilizer molecules on the surface of the ZnO films by UV induced decomposition mechanism. However, excessive treatment can generate additional defects on/within the ZnO films, which can induce charge recombination. This effect was further confirmed by the thermal treatment of the ZnO ETLs at a high temperature (280 degrees C) at which the organic surfactants could be removed. Flexible I-PSCs were also fabricated using indium doped tin oxide coated plastic substrates and the usefulness of the room temperature UVO treatment was further confirmed in view of its potential applicability in flexible devices. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1942 / 1950

页数：9

共 37 条

[11] Electrical and optical properties of transparent flexible electrodes: Effects of UV ozone and oxygen plasma treatments [J].

Kato, Yuichi ;

Jung, Min-Cherl ;

Lee, Michael V. ;

Qi, Yabing .

ORGANIC ELECTRONICS, 2014, 15 (03) :721-728

[12] Improved operational stability of polyfluorene-based organic light-emitting diodes with plasma-treated indium-tin-oxide anodes [J].

Kim, JS ;

Friend, RH ;

Cacialli, F .

APPLIED PHYSICS LETTERS, 1999, 74 (21) :3084-3086

[13] A roll-to-roll process to flexible polymer solar cells: model studies, manufacture and operational stability studies [J].

Krebs, Frederik C. ;

Gevorgyan, Suren A. ;

Alstrup, Jan .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (30) :5442-5451

[14] All solution roll-to-roll processed polymer solar cells free from indium-tin-oxide and vacuum coating steps [J].

Krebs, Frederik C. .

ORGANIC ELECTRONICS, 2009, 10 (05) :761-768

[15] A complete process for production of flexible large area polymer solar cells entirely using screen printing-First public demonstration [J].

Krebs, Frederik C. ;

Jorgensen, Mikkel ;

Norrman, Kion ;

Hagemann, Ole ;

Alstrup, Jan ;

Nielsen, Torben D. ;

Fyenbo, Jan ;

Larsen, Kaj ;

Kristensen, Jette .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2009, 93 (04) :422-441

[16] An inverted organic solar cell employing a sol-gel derived ZnO electron selective layer and thermal evaporated MoO3 hole selective layer [J].

Kyaw, A. K. K. ;

Sun, X. W. ;

Jiang, C. Y. ;

Lo, G. Q. ;

Zhao, D. W. ;

Kwong, D. L. .

APPLIED PHYSICS LETTERS, 2008, 93 (22)

[17] Determination of the sp3/sp2 ratio of a-C:H by XPS and XAES [J].

Leung, TY ;

Man, WF ;

Lim, PK ;

Chan, WC ;

Gaspari, F ;

Zukotynski, S .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1999, 254 :156-160

[18] A New Class of Semiconducting Polymers for Bulk Heterojunction Solar Cells with Exceptionally High Performance [J].

Liang, Yongye ;

Yu, Luping .

ACCOUNTS OF CHEMICAL RESEARCH, 2010, 43 (09) :1227-1236

[19] Effects of the Morphology of a ZnO Buffer Layer on the Photovoltaic Performance of Inverted Polymer Solar Cells [J].

Liang, Zhiqiang ;

Zhang, Qifeng ;

Wiranwetchayan, Orawan ;

Xi, Junting ;

Yang, Zhou ;

Park, Kwangsuk ;

Li, Chundong ;

Cao, Guozhong .

ADVANCED FUNCTIONAL MATERIALS, 2012, 22 (10) :2194-2201

[20] Highly efficient inverted polymer solar cell by low temperature annealing of Cs2CO3 interlayer [J].

Liao, Hua-Hsien ;

Chen, Li-Min ;

Xu, Zheng ;

Li, Gang ;

Yang, Yang .

APPLIED PHYSICS LETTERS, 2008, 92 (17)

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