Cathode buffer layers based on vacuum and solution deposited poly(3,4-ethylenedioxythiophene) for efficient inverted organic solar cells

被引：25

作者：

Barr, Miles C. ^{[1
]}

Carbonera, Chiara ^{[2
]}

Po, Riccardo ^{[2
]}

Bulovic, Vladimir ^{[3
]}

Gleason, Karen K. ^{[1
]}

机构：

[1] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

[2] ENI SpA, Inst ENI Donegani, Ctr Ric Energie Non Convenzionali, I-28100 Novara, Italy

[3] MIT, Dept Elect Engn, Cambridge, MA 02139 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 18期

基金：

美国国家科学基金会;

关键词：

WORK-FUNCTION; POLYMER; TRANSPARENT; CONDUCTIVITY; MORPHOLOGY;

D O I：

10.1063/1.4709481

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Vacuum and solution processed versions of poly(3,4-ethylenedioxythiophene) (PEDOT) are used as cathode interlayers in inverted organic photovoltaic cells comprising tetraphenyldibenzoperiflanthene as the electron donor and C-60 as the electron acceptor. Chemical treatment of the as-deposited PEDOT layers with tetrakis(dimethylamino) ethylene or cesium carbonate reduces the work function by up to 0.8 eV. Inserting these PEDOT layers at the indium tin oxide cathode results in improved electron collection and efficiencies of up to 2.3 +/- 0.2%, approaching the 3.2 +/- 0.3% of the conventional device. This illustrates the potential for efficient polymer cathode materials and inverted device architectures compatible with either solution or vacuum processing. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4709481]

引用

收藏

页数：4

相关论文

共 29 条

[11] Towards all-plastic flexible light emitting diodes [J].

Jakobsson, F. L. E. ;

Crispin, X. ;

Lindell, L. ;

Kanciurzewska, A. ;

Fahlman, M. ;

Salaneck, W. R. ;

Berggren, M. .

CHEMICAL PHYSICS LETTERS, 2006, 433 (1-3) :110-114

[12] Kelvin probe and ultraviolet photoemission measurements of indium tin oxide work function:: a comparison [J].

Kim, JS ;

Lägel, B ;

Moons, E ;

Johansson, N ;

Baikie, ID ;

Salaneck, WR ;

Friend, RH ;

Cacialli, F .

SYNTHETIC METALS, 2000, 111 (111) :311-314

[13] Highly Conductive PEDOT:PSS Electrode with Optimized Solvent and Thermal Post-Treatment for ITO-Free Organic Solar Cells [J].

Kim, Yong Hyun ;

Sachse, Christoph ;

Machala, Michael L. ;

May, Christian ;

Mueller-Meskamp, Lars ;

Leo, Karl .

ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (06) :1076-1081

[14] Scientific importance, properties and growing applications of poly( 3,4-ethylenedioxythiophene) [J].

Kirchmeyer, S ;

Reuter, K .

JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (21) :2077-2088

[15] Efficient inverted polymer solar cells [J].

Li, G. ;

Chu, C. -W. ;

Shrotriya, V. ;

Huang, J. ;

Yang, Y. .

APPLIED PHYSICS LETTERS, 2006, 88 (25)

[16] Highly efficient inverted polymer solar cell by low temperature annealing of Cs2CO3 interlayer [J].

Liao, Hua-Hsien ;

Chen, Li-Min ;

Xu, Zheng ;

Li, Gang ;

Yang, Yang .

APPLIED PHYSICS LETTERS, 2008, 92 (17)

[17]

Lindell L, 2006, CHEM MATER, V18, P4246, DOI 10.1021/cm061081m

[18] Charge generation layers comprising transition metal-oxide/organic interfaces: Electronic structure and charge generation mechanism [J].

Meyer, J. ;

Kroeger, M. ;

Hamwi, S. ;

Gnam, F. ;

Riedl, T. ;

Kowalsky, W. ;

Kahn, A. .

APPLIED PHYSICS LETTERS, 2010, 96 (19)

[19] Efficient and Flexible ITO-Free Organic Solar Cells Using Highly Conductive Polymer Anodes [J].

Na, Seok-In ;

Kim, Seok-Soon ;

Jo, Jang ;

Kim, Dong-Yu .

ADVANCED MATERIALS, 2008, 20 (21) :4061-4067

[20] Cathodes comprising highly conductive poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) for semi-transparent polymer solar cells [J].

Nickel, Felix ;

Puetz, Andreas ;

Reinhard, Manuel ;

Do, Hung ;

Kayser, Christian ;

Colsmann, Alexander ;

Lemmer, Uli .

ORGANIC ELECTRONICS, 2010, 11 (04) :535-538