Electronic structure and morphology of organic/metal/organic junctions

被引：7

作者：

Watkins, N. J. ^{[1
]}

Kushto, G. P. ^{[1
]}

Maekinen, A. J. ^{[1
]}

机构：

[1] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 01期

关键词：

D O I：

10.1063/1.2952055

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the electronic structures and morphologies of two organic-metal-organic junctions, relevant for organic bistable devices, photovoltaics, and light emitting devices. Combined photoemission spectroscopy and scanning probe measurements found that in a 3,4,9,10 perylenetetracarboxylic dianhydride bis-benzimidazole (PTCBI)/Ag/Cu-phthalocyanine (CuPc) junction, Ag undergoes a chemical reaction with PTCBI leading to a discontinuous film of Ag clusters. In contrast, Au forms a continuous metal film in the PTCBI/Au/CuPc junction with no observable chemistry occurring. Photoemission spectroscopy suggests that both heterojunctions exhibit barrierless charge recombination leading to very similar functional behavior when integrated in device structures despite significant chemical and morphological differences. (c) 2008 American Institute of Physics.

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页数：4

相关论文

共 11 条

[1] Mechanism for bistability in organic memory elements [J].

Bozano, LD ;

Kean, BW ;

Deline, VR ;

Salem, JR ;

Scott, JC .

APPLIED PHYSICS LETTERS, 2004, 84 (04) :607-609

[2] Influences of connecting unit architecture on the performance of tandem organic light-emitting devices [J].

Chan, Mei-Yee ;

Lai, Shiu-Lun ;

Lau, Kit-Ming ;

Fung, Man-Keung ;

Lee, Chun-Sing ;

Lee, Shuit-Tong .

ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (14) :2509-2514

[3] Metal-dependent charge transfer and chemical interaction at interfaces between 3,4,9,10-perylenetetracarboxylic bisimidazole and gold, silver and magnesium [J].

Hill, I. G. ;

Schwartz, J. ;

Kahn, A. .

ORGANIC ELECTRONICS, 2000, 1 (01) :5-13

[4] Charge-separation energy in films of π-conjugated organic molecules [J].

Hill, IG ;

Kahn, A ;

Soos, ZG ;

Pascal, RA .

CHEMICAL PHYSICS LETTERS, 2000, 327 (3-4) :181-188

[5] 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

[6] High-efficiency tandem organic light-emitting diodes [J].

Liao, LS ;

Klubek, KP ;

Tang, CW .

APPLIED PHYSICS LETTERS, 2004, 84 (02) :167-169

[7]

LUTH H, 1997, SURFACES INTERFACES, P41071

[8] Organic electrical bistable devices and rewritable memory cells [J].

Ma, LP ;

Liu, J ;

Yang, Y .

APPLIED PHYSICS LETTERS, 2002, 80 (16) :2997-2999

[9] Effects of different materials used for internal floating electrode on the photovoltaic properties of tandem type organic solar cell [J].

Triyana, K ;

Yasuda, T ;

Fujita, K ;

Tsutsui, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2004, 43 (4B) :2352-2356

[10] High photovoltage multiple-heterojunction organic solar cells incorporating interfacial metallic nanoclusters [J].

Yakimov, A ;

Forrest, SR .

APPLIED PHYSICS LETTERS, 2002, 80 (09) :1667-1669