共轭聚合物中均匀无序对极化子输运动力学的影响

袁晓娟; 袁慧敏; 张成强; 王文静; 于元勋; 刘德胜

doi:10.7498/aps.64.067201

摘要

基于扩展的Su-Schrieffer-Heeger紧束缚模型和非绝热动力学方法, 研究了共轭聚合物材料中均匀无序效应对极化子输运动力学的影响. 研究发现: 极化子的动力学输运过程由外加电场和均匀无序效应共同决定; 在大部分电场范围下, 均匀无序效应对极化子输运的影响不太明显, 几乎可以忽略; 但在弱电场下, 均匀无序效应不利于极化子输运. 与高斯型无序效应下极化子的输运过程相比, 具有均匀无序的薄膜形貌更有利于极化子输运.

关键词:

Abstract

Within the framework of the Su-Schrieffer-Heeger model modified to include uniform disorder and an external electric field, the polaron transport process in conjugated polymer material is simulated using a nonadiabatic evolution method. It is found that the polaron dynamic mechanism is determined by both the electric field and the uniform disorder. The effect of uniform disorder is not obvious and almost negligible in most cases, except for the case of very weak electric field. Compared with the effects of Gaussian disorder, the film morphology with uniform disorder is conductible to the polaron transport.

Keywords:

作者及机构信息

1.
齐鲁师范学院物理与电子工程学院, 章丘 250200;

2.
山东大学物理学院, 晶体材料国家重点实验室, 济南 250100

基金项目: 国家自然科学基金(批准号: 11347195, 11374183)、山东省高等学校科技计划项目(批准号: J13LE07) 和教育部博士点基金(批准号: 20130131110007)资助的课题.

Authors and contacts

1.
College of Physics and Electronic Engineering, Qilu Normal University, Zhangqiu 250200, China;

2.
School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 11347195, 11374183), Shandong Province Higher Educational Science and Technology Program, China (Grant No. J13LE07) and Ph. D. Programs Foundation of Ministry of Education of China (Grant No. 20130131110007).

参考文献

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[2]	Sirringhaus H, Tessler N, Friend R H 1998 Science 280 1741
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[4]	Gnes S, Neugebauer H, Sariciftci N S 2007 Chem. Rev. 107 1324
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[7]	Jaiswal M, Menon R 2006 Polym. Int. 55 1371
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[13]	Zen A, Pflaum J, Hirschmann S, Zhuang W, Jaiser F, Asawapirom U, Rabe J P, Scherf U, Neher D 2004 Adv. Funct. Mater. 14 757
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[16]	Ma S S, Xu H, Guo R, Cui M L 2010 Acta Phys. Sin. 59 4972 (in Chinese) [马松山, 徐慧, 郭锐, 崔麦玲 2010 物理学报 59 4972]
[17]	Yang F J, Xie S J 2014 Chin. Phys. B 23 097306
[18]	Su W P, Schrieffer J R, Heeger A J 1979 Phys. Rev. Lett. 42 1698
[19]	Li D M, Yuan X J, Zhou J Q 2013 Acta Phys. Sin. 62 167202 (in Chinese) [李冬梅, 袁晓娟, 周加强 2013 物理学报 62 167202]
[20]	Yuan X J, Dong X F, Li D M, Liu D S 2011 J. Chem. Phys. 134 244901
[21]	Zhang D C, Wang L X, Liu D S, Han S H, Xie S J 2003 Acta Phys. Sin. 52 3191 (in Chinese) [张大成, 王鹿霞, 刘德胜, 韩圣浩, 解士杰 2003 物理学报 52 3191]
[22]	Johansson Å, Stafström S 2001 Phys. Rev. Lett. 86 3602
[23]	Yu J F, Wu C Q, Sun X, Nasu K 2004 Phys. Rev. B 70 064303
[24]	Hultell M, Stafström S 2009 Phys. Rev. B 79 014302
[25]	Kepler R G 1960 Phys. Rev. 119 1226
[26]	Li Y, Liu X J, Fu J Y, Liu D S, Xie S J, Mei L M 2006 Phys. Rev. B 74 184303

施引文献

[1]	Yu G, Gao J, Hummelen J C, Wudi F, Heeger A J 1995 Science 270 1789
[2]	Sirringhaus H, Tessler N, Friend R H 1998 Science 280 1741
[3]	Friend R H, Gymer R W, Holmes A B, Burroughes J H, Marks R N, Taliani C, Bradley D D C, Dos Santos D A, Brédas J L, Lögdlund M, Salaneck W R 1999 Nature 397 121
[4]	Gnes S, Neugebauer H, Sariciftci N S 2007 Chem. Rev. 107 1324
[5]	Shinar J, Shinar R 2008 J. Phys. D: Appl. Phys. 41 133001
[6]	Coropceanu V, Cornil J, da Silva Filho D A, Olivier Y, Silbey R, Brédas J L 2007 Chem. Rev. 107 926
[7]	Jaiswal M, Menon R 2006 Polym. Int. 55 1371
[8]	Demeyu L, Stafström S, Bekele M 2007 Phys. Rev. B 76 155202
[9]	de Oliveira Neto P H, da Cunha W F, Gargano R, Silva G M 2009 J. Phys. Chem. A 113 14975
[10]	Zhang X, Li Z, Lu G 2010 Phys. Rev. B 82 205210
[11]	Sirringhaus H, Brown P J, Friend R H, Nielsen M M, Bechgaard K, Langeveld-Voss B M W, Spiering A J H, Janssen R A J, Meijer E W, Herwig P, de Leeuw D M 1999 Nature 401 685
[12]	Kline R J, McGehee M D, Kadnikova E N, Liu J S, Frechet J M J 2003 Adv. Mater. 15 1519
[13]	Zen A, Pflaum J, Hirschmann S, Zhuang W, Jaiser F, Asawapirom U, Rabe J P, Scherf U, Neher D 2004 Adv. Funct. Mater. 14 757
[14]	Kanemoto K, Muramatsu K, Baba M, Yamauchi J 2008 J. Phys. Chem. B 112 10922
[15]	Konezny S J, Rothberg L J, Galvin M E, Smith D L 2010 App. Phys. Lett. 97 143305
[16]	Ma S S, Xu H, Guo R, Cui M L 2010 Acta Phys. Sin. 59 4972 (in Chinese) [马松山, 徐慧, 郭锐, 崔麦玲 2010 物理学报 59 4972]
[17]	Yang F J, Xie S J 2014 Chin. Phys. B 23 097306
[18]	Su W P, Schrieffer J R, Heeger A J 1979 Phys. Rev. Lett. 42 1698
[19]	Li D M, Yuan X J, Zhou J Q 2013 Acta Phys. Sin. 62 167202 (in Chinese) [李冬梅, 袁晓娟, 周加强 2013 物理学报 62 167202]
[20]	Yuan X J, Dong X F, Li D M, Liu D S 2011 J. Chem. Phys. 134 244901
[21]	Zhang D C, Wang L X, Liu D S, Han S H, Xie S J 2003 Acta Phys. Sin. 52 3191 (in Chinese) [张大成, 王鹿霞, 刘德胜, 韩圣浩, 解士杰 2003 物理学报 52 3191]
[22]	Johansson Å, Stafström S 2001 Phys. Rev. Lett. 86 3602
[23]	Yu J F, Wu C Q, Sun X, Nasu K 2004 Phys. Rev. B 70 064303
[24]	Hultell M, Stafström S 2009 Phys. Rev. B 79 014302
[25]	Kepler R G 1960 Phys. Rev. 119 1226
[26]	Li Y, Liu X J, Fu J Y, Liu D S, Xie S J, Mei L M 2006 Phys. Rev. B 74 184303

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