Electrical transport properties of an organic semiconductor on polyaniline doped by boric acid
Electrical transport properties of an organic semiconductor on polyaniline doped by boric acid
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DOI：
10.1002/pat.1222
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发表时间：
2008-12
影响因子：
3.4
通讯作者：
F. Yakuphanoglu;B. Şenkal
中科院分区：
文献类型：
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作者：
F. Yakuphanoglu;B. Şenkal
研究了硼酸掺杂聚苯胺（PANI-B）的电导率、热电功率和介电性能。PANI-B的室温电导率为1.02 × 10−4 S cm−1。聚合物的热电功率因数为0.64 µW m−1 K−2。用光学吸收法测定了聚苯胺B的光学带隙，其直接光学带隙为3.71eV。该聚合物的交替电荷传输机制是基于相关势垒跳跃（CBH）模型。PANI-B的介电模量的虚部表明温度依赖性介电弛豫机制。电导率和热电势测试结果表明，聚苯胺B是一种具有热激活导电机制的有机半导体。版权所有© 2008约翰威利父子有限公司.
The electrical conductivity, thermoelectric power, and dielectric properties of polyaniline doped by boric acid (PANI-B) have been investigated. The room temperature electrical conductivity of PANI-B was found to be 1.02 × 10−4 S cm−1. The thermoelectric power factor for the polymer was found to be 0.64 µW m−1 K−2. The optical band gap of the PANI-B was determined by optical absorption method, and the PANI-B has a direct optical band gap of 3.71 eV. The alternating charge transport mechanism of the polymer is based on the correlated barrier hopping (CBH) model. The imaginary part of the dielectric modulus for the PANI-B suggests a temperature dependent dielectric relaxation mechanism. Electrical conductivity and thermoelectric power results indicate that the PANI-B is an organic semiconductor with thermally activated conduction mechanism. Copyright © 2008 John Wiley & Sons, Ltd.