Simulation Study on Influence of The Carrier Mobility on The Performances of Organic Solar Cells

ZHU Jian-zhuo; DU Hui-jing; SU Zi-sheng; ZHU Shi-min; XU Tian-fu

doi:10.3788/fgxb20133404.0463

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Simulation Study on Influence of The Carrier Mobility on The Performances of Organic Solar Cells

更新时间：2020-08-12

- Simulation Study on Influence of The Carrier Mobility on The Performances of Organic Solar Cells
- Chinese Journal of Luminescence Vol. 34, Issue 4, Pages: 463-468(2013)
- 作者机构：
  
  1. 燕山大学理学院, 河北秦皇岛 066004
  2. 发光学及应用国家重点实验室中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  3. 东北大学秦皇岛分校,河北秦皇岛,066004
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20133404.0463
  CLC： O472+.8;O482.31
- Received：27 November 2012，
  
  Revised：15 January 2013，
  
  Published Online：10 December 2012，
  
  Published：10 April 2013
- 稿件说明：
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朱键卓, 杜会静, 苏子生, 朱世敏, 徐天赋. 载流子迁移率对有机太阳能电池性能影响的模拟研究[J]. 发光学报, 2013,34(4): 463-468

ZHU Jian-zhuo, DU Hui-jing, SU Zi-sheng, ZHU Shi-min, XU Tian-fu. Simulation Study on Influence of The Carrier Mobility on The Performances of Organic Solar Cells[J]. Chinese Journal of Luminescence, 2013,34(4): 463-468
朱键卓, 杜会静, 苏子生, 朱世敏, 徐天赋. 载流子迁移率对有机太阳能电池性能影响的模拟研究[J]. 发光学报, 2013,34(4): 463-468 DOI： 10.3788/fgxb20133404.0463.

ZHU Jian-zhuo, DU Hui-jing, SU Zi-sheng, ZHU Shi-min, XU Tian-fu. Simulation Study on Influence of The Carrier Mobility on The Performances of Organic Solar Cells[J]. Chinese Journal of Luminescence, 2013,34(4): 463-468 DOI： 10.3788/fgxb20133404.0463.

摘要

通过器件模拟的方法研究了载流子迁移率对有机太阳能电池性能的影响。研究发现载流子迁移率同时影响光生电子-空穴对的解离和载流子的输运过程

电子和空穴的迁移率都有一个最佳值。大于最佳值会导致短路电流的微小上升和开路电压的大幅下降;小于最佳值会降低光生电子-空穴对的解离效率

进而使短路电流和填充因子明显下降。

Abstract

The influence of the carrier mobility on the performances of organic solar cells was studied using the simulation method. It is found that the mobility influences the carrier generation and transport simultaneously. There is an optimal value both for electron mobility and hole mobility. The mobility larger than the optimal value will lead to a small increase in the short circuit current. The mobility smaller than the optimal value will result in the insufficient dissociation of the photogenerated electron hole pair

and decrease the short circuit current and the fill factor.

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Keywords

references

Li X, Wen S S, He Q H, et al. Effects of electrodes on the optical performance of CuPc/C60 bilayer heterojunction organic solar cells [J]. Chin. J. Lumin.(发光学报), 2012, 33(8):888-894 (in Chinese).[2] Ferguson A J, Blackburn J L, Kopidakis N. Fullerenes and carbon nanotubes as acceptor materials in organic photovoltaics [J]. Mater. Lett., 2013, 90(1):115-125.[3] Liu Y D, Su Z S, Zhuang T J, et al. Significant enhanced performance of organic solar cells with F16CuPc as the anode buffer layer [J]. Chin. J. Lumin.(发光学报), 2011, 32(11):1176-1180 (in Chinese).[4] Wu B, Liu P Y, Li Y W, et al. Electron transport layers of inverted heterojunction organic solar cells [J]. Chin. J. Lumin.(发光学报), 2010, 31(5):753-756 (in Chinese).[5] Koster L J A, Smits E C P, Mihailetchi V D, et al. Device model for the operation of polymer/fullerene bulk heterojunction solar cells [J]. Phys. Rev. B, 2005, 72(8):085205-1-8.[6] Barker J A, Ramsdale C M, Greenham N C. Modeling the current-voltage characteristics of bilayer polymer photovoltaic devices [J]. Phys. Rev. B, 2003, 67(7):075205-1-9.[7] Buxton G A, Clarke N. Computer simulation of polymer solar cells [J]. Modelling Simul. Mater. Sci. Eng., 2007, 15(2):13-26.[8] Koster L J A, Mihailetchi V D, Blom P W M. Bimolecular recombination in polymer/fullerene bulk heterojunction solar cells [J]. Appl. Phys. Lett., 2006, 88(5):052104-1-3.[9] Braun C L. Electric field assisted dissociation of charge transfer states as a mechanism of photocarrier production [J]. J. Chem. Phys., 1984, 80(9):4157-4161.[10] Wagenpfahl A, Rauh D, Binder M, et al. S-shaped current-voltage characteristics of organic solar devices [J]. Phys. Rev. B, 2010, 82(11):115306-1-9.[11] Mihailetchi V D, Koster L J, Hummelen A J C. Photocurrent generation in polymer-fullerene bulk heterojunctions [J]. Phys. Rev. Lett., 2004, 93(21):216601-1-4.

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