Effect of UV-ozone treatment on electrical properties of PEDOT:PSS film

被引：81

作者：

Nagata, Takahiro ^{[1
]}

Oha, Seungjun ^{[1
,2
]}

Chikyow, Toyohiro ^{[1
]}

Wakayama, Yutaka ^{[1
,2
]}

机构：

[1] Natl Inst Mat Sci, Adv Elect Mat Ctr, Tsukuba, Ibaraki 3050044, Japan

[2] Kyushu Univ, Dept Chem & Biochem, Fac Engn, Tsukuba, Ibaraki 3050044, Japan

来源：

ORGANIC ELECTRONICS | 2011年 / 12卷 / 02期

基金：

日本学术振兴会;

关键词：

Organic conducting material; Conductive polymer; UV-ozone treatment; X-ray photoemission spectroscopy; Work function; X-RAY PHOTOEMISSION; PHOTOELECTRON-SPECTROSCOPY; ULTRAVIOLET; PSS; POLY(3,4-ETHYLENEDIOXYTHIOPHENE); POLYMERS; SPECTRA; LAYER;

D O I：

10.1016/j.orgel.2010.11.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We reveal the effect of UV-ozone treatment on the electrical properties of poly (styrene-sulfonate) doped poly (3,4-ethylenedioxythiophene) (PEDOT:PSS) film by clarifying the respective roles of UV light irradiation and exposure to ozone gas. The UV-ozone treatment induced increases in both work function and resistivity. Furthermore, the film thickness was reduced at a rate of 0.13 nm/min. The ozone-exposed films also exhibited a marked increase in the work function. However, such variations were not observed in the resistivity and film etching. Angle resolved X-ray photoelectron spectroscopy revealed that the main role of the UV light was to decompose the chemical bonds in the PEDOT: PSS film, resulting in a resistivity increase and film etching. In contrast, the ozone and atomic oxygen were absorbed and oxidized the surface, which was responsible for the increase in the work function. Due to these different functions, UV-ozone treatment is capable of controlling the work function and resistivity of PEDOT: PSS film thus allowing them be adjusted to the device application. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：279 / 284

页数：6

共 28 条

[1]

[Anonymous], 1966, HDB CHEM BAS

[2] Energy barrier, charge carrier balance, and performance improvement in organic light-emitting diodes [J].

Benor, Amare ;

Takizawa, Shin-ya ;

Perez-Bolivar, C. ;

Anzenbacher, Pavel, Jr. .

APPLIED PHYSICS LETTERS, 2010, 96 (24)

[3] Efficiency improvement of fluorescent OLEDs by tuning the working function of PEDOT:PSS using UV-ozone exposure [J].

Benor, Amare ;

Takizawa, Shin-ya ;

Perez-Bolivar, Cesar ;

Anzenbacher, Pavel, Jr. .

ORGANIC ELECTRONICS, 2010, 11 (05) :938-945

[4] Dramatic efficiency improvement in phosphorescent organic light-emitting diodes with ultraviolet-ozone treated poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) [J].

Benor, Amare ;

Takizawa, Shin-ya ;

Chen, Ping ;

Perez-Bolivar, Cesar ;

Anzenbacher, Pavel, Jr. .

APPLIED PHYSICS LETTERS, 2009, 94 (19)

[5] INTERFERENCE MEASUREMENTS IN THE SPECTRA OF NEON AND NATURAL MERCURY [J].

BURNS, K ;

ADAMS, KB ;

LONGWELL, J .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1950, 40 (06) :339-344

[6] ELECTROCHEMICAL AND SPECTROSCOPIC CHARACTERIZATION OF POLYALKYLENEDIOXYTHIOPHENES [J].

DIETRICH, M ;

HEINZE, J ;

HEYWANG, G ;

JONAS, F .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1994, 369 (1-2) :87-92

[7] MANY-ELECTRON SINGULARITY IN X-RAY PHOTOEMISSION AND X-RAY LINE SPECTRA FROM METALS [J].

DONIACH, S ;

SUNJIC, M .

JOURNAL OF PHYSICS PART C SOLID STATE PHYSICS, 1970, 3 (02) :285-&

[8] Characterization of the PEDOT-PSS system by means of X-ray and ultraviolet photoelectron spectroscopy [J].

Greczynski, G ;

Kugler, T ;

Salaneck, WR .

THIN SOLID FILMS, 1999, 354 (1-2) :129-135

[9] Photoelectron spectroscopy of thin films of PEDOT-PSS conjugated polymer blend: a mini-review and some new results [J].

Greczynski, G ;

Kugler, T ;

Keil, M ;

Osikowicz, W ;

Fahlman, M ;

Salaneck, WR .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2001, 121 (1-3) :1-17

[10] The effect of UV ozone treatment on poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) [J].

Helander, M. G. ;

Wang, Z. B. ;

Greiner, M. T. ;

Liu, Z. W. ;

Lian, K. ;

Lu, Z. H. .

APPLIED PHYSICS LETTERS, 2009, 95 (17)

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