UV irradiation induced conductivity improvement in poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) film

被引：0
|
作者：
YingJie Xing
MinFang Qian
GuiWei Wang
GengMin Zhang
DengZhu Guo
JinLei Wu
机构：
[1] Peking University,Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics
来源：
Science China Technological Sciences | 2014年 / 57卷
关键词：
conductivity; ultraviolet; photo-cross-linking;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We describe a simple method to increase the conductivity of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) film by exposure to ultraviolet (UV) light in vacuum. Up to four order of conductivity improvement (from 10−3 to 50 S/cm) is achieved by irradiating PEDOT:PSS film with 254 nm ultraviolet (UV) light. Increased conductivity in UV treated PEDOT:PSS film is stable under ambient exposure. The mechanism for conductivity improvement is investigated by current-voltage measurement, atomic force microscopy, and absorption spectrum. Photo-cross-linking of PSS chains is determined as the reason for conductivity improvement. Our result demonstrates that UV treatment is capable of modifying the conductivity of PEDOT:PSS film independent of the process of film formation.
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页码：44 / 48
页数：4
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