梯度掺杂体异质结对有机太阳能电池光电转换效率的影响

王鹏; 郭闰达; 陈宇; 岳守振; 赵毅; 刘式墉

doi:10.7498/aps.62.088801

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摘要

基于传统的体异质结有机太阳能电池结构, 对结构中的混合层改用梯度掺杂的方法, 在AM1.5, 100 mW/cm2光照下, 使得器件的短路电流由原来的7.72 mA/cm2提高到了9.18 mA/cm2, 相应的光电转换效率提高了25%. 器件性能的提升归因于梯度掺杂体系的引入使得体异质结混合层中同一材料分子之间形成了较好的连续网络结构, 降低了器件的串联电阻, 提高了电极对载流子的收集效率, 从而提高了器件的光电转换效率.

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作者及机构信息

1.
吉林大学电子科学与工程学院, 集成光电子学国家重点实验室, 长春 130012

基金项目: 国家重点基础研究发展计划(批准号:2010CB327701)和国家自然科学基金(批准号:60977024)资助的课题.

参考文献

[1]	Park S H, Roy A, Beaupre S, Cho S, Coates N, Moon J S, Moses D, Leclerc M, Lee K, Heeger A J 2009 Nature Photon. 3 297
[2]	Brabec C J, Gowrisanker S, Halls J J M, Laird D, Jia S, Williams S P 2010 Adv. Mater. 22 3839
[3]	Liang Y Y, Xu Z, Xia J B, Tsai S T, Wu Y, Li G, Ray C, Yu L P 2010 Adv. Mater. 22 E135
[4]	Chen H Y, Hou J H, Zhang S Q, Liang Y Y, Yang G W, Yang Y, Yu L P, Wu Y, Li G 2009 Nature Photon. 3 649
[5]	Service R F 2011 Science 332 293
[6]	Xing H W, Peng Y Q, Yang Q S, Ma C Z, Wang R S, Li X S 2008 Acta Phys. Sin. 57 7374 (in Chinese) [邢宏伟, 彭应全, 杨青森, 马朝柱, 汪润生, 李训栓 2008 物理学报 57 7374]
[7]	Drechsel J, Männig B, Kozlowski F, Pfeiffer M, Leo K, Hoppe H 2005 Appl. Phys. Lett. 86 244102
[8]	Xu Z, Zhao S L, Zhang F J, Kong C, Cao W Z, Gong W, Liu R, Cao X N 2011 Acta Phys. Sin. 60 058801 (in Chinese) [徐征, 赵谡玲, 张福俊, 孔超, 曹文喆, 龚伟, 刘瑞, 曹晓宁 2011 物理学报 60 058801]
[9]	Hao Q Y, Hu Z Y, Zhang J J, Zhao Y, Hao Z H 2011 Acta Phys. Sin. 60 117106 (in Chinese) [郝秋艳, 胡子阳, 张建军, 赵颖, 郝志红 2011 物理学报 60 117106]
[10]	Taima T, Toyoshima S, Hara K, Saito K, Yase K 2006 Jpn. J. Appl. Phys. 45 L217
[11]	Uchida S, Xue J G, Rand B P, Forrest S R 2004 Appl. Phys. Lett. 84 4218
[12]	Tang C W 1986 Appl. Phys. Lett. 48 183
[13]	Xue J G, Rand B P, Uchida S, Forrest S R 2005 Adv. Mater. 17 66
[14]	Gebeyehu D, Maennig B, Drechsel J, Leo K, Pfeiffer M 2003 Sol. Energy Mater. Sol. Cells 79 81
[15]	Forrest S R, Peumans P 2001 Appl. Phys. Lett. 79 126
[16]	Wang Y, Yu J C, Zhang Y 2010 Sol. Energy Mater. Sol. Cells 94 263
[17]	Peumans P, Yakimov A, Forrest S R 2003 J. Appl. Phys. 93 3693
[18]	Huang J, Yu J S, Guan Z Q, Jiang Y D 2010 Appl. Phys. Lett. 97 143301
[19]	He Y J, Chen H, Hou J H, Li Y F 2010 J. Am. Chem. Soc. 132 1377
[20]	Haugeneder A, Neges M, Kallinger C, Spirkl W, Lemmer U, Feldmann J 1999 Phys. Rev. B 59 15346
[21]	Kippelen B, Brédas J L 2009 Energy Environ. Sci. 2 251
[22]	Peumans P, Uchida S, Forrest S R 2003 Nature 425 158
[23]	Luo Y, Duan Y, Chen P, Zang C L, Xie Y, Zhao Y, Liu S Y 2012 Acta Phys. Sin. 61 147801 (in Chinese) [骆杨, 段羽, 陈平, 臧春亮, 谢月, 赵毅, 刘式墉 2012 物理学报 61 147801]

施引文献

[1]	Park S H, Roy A, Beaupre S, Cho S, Coates N, Moon J S, Moses D, Leclerc M, Lee K, Heeger A J 2009 Nature Photon. 3 297
[2]	Brabec C J, Gowrisanker S, Halls J J M, Laird D, Jia S, Williams S P 2010 Adv. Mater. 22 3839
[3]	Liang Y Y, Xu Z, Xia J B, Tsai S T, Wu Y, Li G, Ray C, Yu L P 2010 Adv. Mater. 22 E135
[4]	Chen H Y, Hou J H, Zhang S Q, Liang Y Y, Yang G W, Yang Y, Yu L P, Wu Y, Li G 2009 Nature Photon. 3 649
[5]	Service R F 2011 Science 332 293
[6]	Xing H W, Peng Y Q, Yang Q S, Ma C Z, Wang R S, Li X S 2008 Acta Phys. Sin. 57 7374 (in Chinese) [邢宏伟, 彭应全, 杨青森, 马朝柱, 汪润生, 李训栓 2008 物理学报 57 7374]
[7]	Drechsel J, Männig B, Kozlowski F, Pfeiffer M, Leo K, Hoppe H 2005 Appl. Phys. Lett. 86 244102
[8]	Xu Z, Zhao S L, Zhang F J, Kong C, Cao W Z, Gong W, Liu R, Cao X N 2011 Acta Phys. Sin. 60 058801 (in Chinese) [徐征, 赵谡玲, 张福俊, 孔超, 曹文喆, 龚伟, 刘瑞, 曹晓宁 2011 物理学报 60 058801]
[9]	Hao Q Y, Hu Z Y, Zhang J J, Zhao Y, Hao Z H 2011 Acta Phys. Sin. 60 117106 (in Chinese) [郝秋艳, 胡子阳, 张建军, 赵颖, 郝志红 2011 物理学报 60 117106]
[10]	Taima T, Toyoshima S, Hara K, Saito K, Yase K 2006 Jpn. J. Appl. Phys. 45 L217
[11]	Uchida S, Xue J G, Rand B P, Forrest S R 2004 Appl. Phys. Lett. 84 4218
[12]	Tang C W 1986 Appl. Phys. Lett. 48 183
[13]	Xue J G, Rand B P, Uchida S, Forrest S R 2005 Adv. Mater. 17 66
[14]	Gebeyehu D, Maennig B, Drechsel J, Leo K, Pfeiffer M 2003 Sol. Energy Mater. Sol. Cells 79 81
[15]	Forrest S R, Peumans P 2001 Appl. Phys. Lett. 79 126
[16]	Wang Y, Yu J C, Zhang Y 2010 Sol. Energy Mater. Sol. Cells 94 263
[17]	Peumans P, Yakimov A, Forrest S R 2003 J. Appl. Phys. 93 3693
[18]	Huang J, Yu J S, Guan Z Q, Jiang Y D 2010 Appl. Phys. Lett. 97 143301
[19]	He Y J, Chen H, Hou J H, Li Y F 2010 J. Am. Chem. Soc. 132 1377
[20]	Haugeneder A, Neges M, Kallinger C, Spirkl W, Lemmer U, Feldmann J 1999 Phys. Rev. B 59 15346
[21]	Kippelen B, Brédas J L 2009 Energy Environ. Sci. 2 251
[22]	Peumans P, Uchida S, Forrest S R 2003 Nature 425 158
[23]	Luo Y, Duan Y, Chen P, Zang C L, Xie Y, Zhao Y, Liu S Y 2012 Acta Phys. Sin. 61 147801 (in Chinese) [骆杨, 段羽, 陈平, 臧春亮, 谢月, 赵毅, 刘式墉 2012 物理学报 61 147801]

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梯度掺杂体异质结对有机太阳能电池光电转换效率的影响

1. 吉林大学电子科学与工程学院, 集成光电子学国家重点实验室, 长春 130012

基金项目:

国家重点基础研究发展计划(批准号:2010CB327701)和国家自然科学基金(批准号:60977024)资助的课题.

收稿日期: 2012-09-10

修回日期: 2012-12-06

刊出日期: 2013-04-05

摘要: 基于传统的体异质结有机太阳能电池结构, 对结构中的混合层改用梯度掺杂的方法, 在AM1.5, 100 mW/cm2光照下, 使得器件的短路电流由原来的7.72 mA/cm2提高到了9.18 mA/cm2, 相应的光电转换效率提高了25%. 器件性能的提升归因于梯度掺杂体系的引入使得体异质结混合层中同一材料分子之间形成了较好的连续网络结构, 降低了器件的串联电阻, 提高了电极对载流子的收集效率, 从而提高了器件的光电转换效率.

关键词:

Influence of gradient doping on photoelectric conversion efficiency of organic photovoltaic devices

1.
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China

Fund Project:

Project supported by National Basic Research Program of China (Grant No. 2010CB327701) and the National Natural Science Foundation of China (Grant No. 60977024).

Received Date: 10 September 2012

Accepted Date: 06 December 2012

Published Online: 05 April 2013

Abstract: On the basis of the traditional bulk heterojunction structure, we introduce a method of gradient doping in the mixing layer to improve photoelectric conversion efficiency (ηp) of organic photovoltaic device (OPV). One of the devices with the structure of ITO/CuPc (10 nm)/CuPc:C60 (2:1) (4 nm)/CuPc:C60 (1.5:1) (4 nm)/CuPc:C60 (1:1) (4 nm)/CuPc:C60 (1:1.5) (4 nm)/CuPc:C60 (1:2) (4 nm)/C60 (30 nm)/Bphen (8 nm)/Al (100 nm) show the improvement on performance:short-circuit current JSC = 9.18 mA/cm2, photoelectric conversion efficiency ηp = 1.35% under AM1.5 solar illumination. Compared with ηp of the traditional bulk heterojunction OPV ITO/CuPc(10 nm)/CuPc:C60 (1:1) (20 nm)/C60(30 nm)/Bphen(8 nm)/Al(100 nm), the ηp of the present structure is improved by 25%, which is attributed to the improvement on percolating paths of donor and acceptor molecules across the entire mixing layer, thus increasing the charge collection efficiency. Consequently, the overall device series resistance is reduced and the photoelectric conversion efficiency is enhanced.

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