Dispersion and current-voltage characteristics of helical polyacetylene single fibers

被引:60
作者
Lee, HJ
Jin, ZX
Aleshin, AN
Lee, JY
Goh, MJ
Akagi, K
Kim, YS
Kim, DW
Park, YW [1 ]
机构
[1] Seoul Natl Univ, Sch Phys, Seoul 151747, South Korea
[2] Seoul Natl Univ, Nanosyst Inst, Natl Core Res Ctr, Seoul 151747, South Korea
[3] Renmin Univ China, Dept Chem, Beijing, Peoples R China
[4] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[5] Univ Tsukuba, Inst Mat Sci, Tsukuba Ctr Interdisciplinary Mat Sci, TIMS, Tsukuba, Ibaraki 3508573, Japan
关键词
D O I
10.1021/ja044615y
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
To study the transport properties of individual helical polyacetylene (PA) fibers, we developed a method to extract a single fiber from tightly entangled ropes of helical PA bulk film. After a few minutes of sonication of a piece of helical PA bulk film in an organic solution containing surfactant, a droplet of solution is deposited on the pre-pattened electrode under argon atmosphere. AFM images show that extracted helical PA fibers are typically 10 μm in length and 100-200 nm in diameter. We found that the helicity of bulk materials is conserved. We present the temperature dependencies of current-voltage characteristics of individual helical PA fibers doped with iodine. Copyright © 2004 American Chemical Society.
引用
收藏
页码:16722 / 16723
页数:2
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