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[1]张剑,冯晓东.CuPc/C60异质结有机太阳能电池的理论效率计算[J].南京工业大学学报(自然科学版),2013,35(06):35-38.[doi:10.3969/j.issn.1671-7627.2013.06.007]
 ZHANG Jian,FENG Xiaodong.Calculation of theoretical efficiency of CuPc/C60 heterojunction organic solar cells[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(06):35-38.[doi:10.3969/j.issn.1671-7627.2013.06.007]
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CuPc/C60异质结有机太阳能电池的理论效率计算()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
35
期数:
2013年06期
页码:
35-38
栏目:
出版日期:
2013-11-20

文章信息/Info

Title:
Calculation of theoretical efficiency of CuPc/C60 heterojunction organic solar cells
文章编号:
1671-7627(2013)06-0035-04
作者:
张剑冯晓东
南京工业大学 材料科学与工程学院,江苏 南京 210009
Author(s):
ZHANG JianFENG Xiaodong
College of Materials Science and Engineering,Nanjing University of Technology,Nanjing 210009,China
关键词:
有机太阳能电池 填充因子 理论效率
Keywords:
organic solar cells fill factor theoretical efficiency
分类号:
TM914
DOI:
10.3969/j.issn.1671-7627.2013.06.007
文献标志码:
A
摘要:
利用p-n结型光伏电池的电流-电压方程计算铜酞菁(CuPc)/ 富勒烯(C60)异质结太阳能电池的理论效率。有机太阳能电池的开路电压是由给体已占有电子能级最高的轨道(HOMO)能级与受体未占有电子能级最低的轨道(LUMO)能级之间的能级差(EHOMO(D)-ELUMO(A))决定,且呈线性关系。当EHOMO(D)-ELUMO(A)为1 eV时,CuPc/C60异质结太阳能电池的开路电压理论最大值可达0.7 V。当并联电阻增大、串联电阻降低时有利于电池获得较大的填充因子。CuPc/C60电池中,当激子分离因子值大于5 000 Ω/cm2时,电池的填充因子趋于饱和值0.75,此时电池的理论效率可达8%。
Abstract:
The theoretical efficiency of copper phthalocyanine(CuPc)/ fullerene(C60)heterojunction organic solar cells was calculated based on the voltage-current equation of p-n junction solar cells.In CuPc/C60 heterojunction organic solar cells,at open-circuit voltage(Voc)is determined by the energy difference(EHOMO(D)-ELUMO(A))between the highest occupied molecular orbital(HOMO)of donor and the lowest unoccupied molecular orbital(LUMO)of acceptor,and a linear relationship between Voc and EHOMO(D)-ELUMO(A) could be established.It has been found that the theoretical maximum value of Voc could reach 0.7 V when EHOMO(D)-ELUMO(A) is 1 eV.When the shunt resistance is very large and the series resistance very is small,a high fill factor value could be favorably reached.When the value of exciton dissociation factor was as high as 5 000 Ω/cm2 in CuPc/C60 solar cells,the fill factor could reach the maximum value of 0.75,and the theoretical efficiency could be 8%.

参考文献/References:

[1] Hill I G,Kahn A,Soos Z G,et al.Charge-separation energy in films of π-conjugated organic molecules[J].Chemical Physics Letters,2000,327(3/4):181-188.
[2] Braun C L.Electric field assisted dissociation of charge transfer states as a mechanism of photocarrier production[J].Journal of Chemical Physics,1984,80(9):4157-4161.
[3] Green M A.Accuracy of analytical expressions for solar cell fill factors[J].Solar Cells,1982,7(13):337-340.
[4] Rand B P,Burk D P,Forrest S R.Offset energies at organic semiconductor heterojunctions and their inuence on the open-circuit voltage of thin-film solar cells[J].Physical Review B,2007,75(11):115327.
[5] Liu Z T,Lo M F,Wang H B,et al.Inuence of the donor/acceptor interface on the open-circuit voltage in organic solar cells[J].Applied Physics Letters,2009,95(9):093307.
[6] Cho S W,Piper L F J,DeMasi A,et al.Electronic structure of C60/phthalocyanine/ITO interfaces studied using soft X-ray spectroscopies[J].Journal of Physical Chemistry C,2010,114(4):1928-1933.

备注/Memo

备注/Memo:
收稿日期:2012-11-25
基金项目:江苏高校优势学科建设工程项目
作者简介:张剑(1985—),男,安徽灵璧人,硕士生,主要研究方向为有机太阳能电池; 冯晓东(联系人),教授,E-mail:xiaodong_feng@126.com..
更新日期/Last Update: 2013-11-30