Correlating reduced fill factor in polymer solar cells to contact effects

被引：132

作者：

Gupta, Dhritiman ^{[1
]}

Bag, Monojit ^{[1
]}

Narayan, K. S. ^{[1
]}

机构：

[1] Jawaharlal Nehru Ctr Adv Sci Res, Bangalore 560064, Karnataka, India

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 09期

关键词：

D O I：

10.1063/1.2841062

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A probable limiting factor for efficiency and fill factors of organic solar cells originates from the cathode-polymer interface. We utilize various forms of cathode layer such as Al, Ca, oxidized Ca, and low melting point alloys in model systems to emphasize this aspect in our studies. The current-voltage (JV) response in the fourth quadrant indicates a general trend of convex shaped JV characteristics (d(2)J/dV(2)> 0) for illuminated devices with good cathode-polymer interfaces and linear or concave JV responses (d(2)J/dV(2)< 0) for inefficient cathode-polymer interfaces. (c) 2008 American Institute of Physics.

引用

页数：3

共 20 条

[1] Influence of cathode sputter deposition on organic solar cells [J].

Ahlswede, Erik ;

Hanisch, Jonas ;

Powalla, Michael .

APPLIED PHYSICS LETTERS, 2007, 90 (06)

[2] Improving power efficiencies in polymer -: polymer blend photovoltaics [J].

Breeze, AJ ;

Schlesinger, Z ;

Carter, SA ;

Tillmann, H ;

Hörhold, HH .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2004, 83 (2-3) :263-271

[3] Effect of the interface morphology on the fill factor of plastic solar cells [J].

Djara, V ;

Bernède, JC .

THIN SOLID FILMS, 2005, 493 (1-2) :273-277

[4]

*EPAPS, EAPPLAB92065806 EPAP

[5] Efficiency limiting factors of organic bulk heterojunction solar cells identified by electrical impedance spectroscopy [J].

Glatthaar, M. ;

Riede, M. ;

Keegan, N. ;

Sylvester-Hvid, K. ;

Zimmermann, B. ;

Niggemann, M. ;

Hinsch, A. ;

Gombert, A. .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2007, 91 (05) :390-393

[6] DOUBLE EXTRACTION OF UNIFORMLY GENERATED ELECTRON-HOLE PAIRS FROM INSULATORS WITH NONINJECTING CONTACTS [J].

GOODMAN, AM ;

ROSE, A .

JOURNAL OF APPLIED PHYSICS, 1971, 42 (07) :2823-&

[7] Laminated fabrication of polymeric photovoltaic diodes [J].

Granström, M ;

Petritsch, K ;

Arias, AC ;

Lux, A ;

Andersson, MR ;

Friend, RH .

NATURE, 1998, 395 (6699) :257-260

[8] An efficient bulk-heterojunction photovoltaic cell based on energy transfer in graded-bandgap polymers [J].

Gupta, Dhritiman ;

Kabra, Dinesh ;

Kolishetti, Nagesh ;

Ramakrishnan, S. ;

Narayan, K. S. .

ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (02) :226-232

[9] Efficient polymer solar cells based on M3EH-PPV [J].

Kietzke, T ;

Hörhold, HH ;

Neher, D .

CHEMISTRY OF MATERIALS, 2005, 17 (26) :6532-6537

[10] Efficient tandem polymer solar cells fabricated by all-solution processing [J].

Kim, Jin Young ;

Lee, Kwanghee ;

Coates, Nelson E. ;

Moses, Daniel ;

Nguyen, Thuc-Quyen ;

Dante, Mark ;

Heeger, Alan J. .

SCIENCE, 2007, 317 (5835) :222-225

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