Detailed Investigation of Light Induced Charge Injection into a Single Conjugated Polymer Chain

被引：15

作者：

Bolinger, Josh ^{[1
]}

Lee, Kwang-Jik ^{[1
]}

Palacios, Rodrigo E. ^{[1
]}

Barbara, Paul F. ^{[1
]}

机构：

[1] Univ Texas Austin, Ctr Nano & Mol Sci & Technol, Austin, TX 78712 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 47期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/jp804901s

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Detailed single molecule spectroscopic results are presented for the recently reported oxidation of single-chain conjugated polymers of MEH-PPV at the HTL/insulator interface of an MIS device. The charge injection process was determined to be light dominated with no charging occurring in the dark at any applied bias. The nature of the optical preparation of the injected charge is explored by a range of single molecule fluorescence voltage modulation techniques. The observed charging dynamics are highly consistent with a cooperative charging effect. It is also observed that analogous charging occurs for the conjugated polymer F8BT.

引用

页码：18608 / 18615

页数：8

共 64 条

[21] The vibrational reorganization energy in pentacene:: Molecular influences on charge transport [J].

Gruhn, NE ;

da Silva, DA ;

Bill, TG ;

Malagoli, M ;

Coropceanu, V ;

Kahn, A ;

Brédas, JL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (27) :7918-7919

[22] Solvent-induced phase transition in thermally evaporated pentacene films [J].

Gundlach, DJ ;

Jackson, TN ;

Schlom, DG ;

Nelson, SF .

APPLIED PHYSICS LETTERS, 1999, 74 (22) :3302-3304

[23] Host matrix dependent fluorescence intensity modulation by an electric field in single conjugated polymer chains [J].

Hania, P. Ralph ;

Thomsson, Daniel ;

Scheblykin, Ivan G. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (51) :25895-25900

[24] Electric field induced quenching of the fluorescence of a conjugated polymer probed at the single molecule level [J].

Hania, PR ;

Scheblykin, IG .

CHEMICAL PHYSICS LETTERS, 2005, 414 (1-3) :127-131

[25] Fluorescence quenching induced by injected carriers in organic thin films [J].

Hieda, H ;

Tanaka, K ;

Naito, K ;

Gemma, N .

THIN SOLID FILMS, 1998, 331 (1-2) :152-157

[26] Organic semiconductor heterointerfaces containing bathocuproine [J].

Hill, IG ;

Kahn, A .

JOURNAL OF APPLIED PHYSICS, 1999, 86 (08) :4515-4519

[27]

Hong ZR, 2001, ADV MATER, V13, P1241, DOI 10.1002/1521-4095(200108)13:16<1241::AID-ADMA1241>3.0.CO

[28]

2-6

[29] Time-resolved electric force microscopy of charge trapping in polycrystalline pentacene [J].

Jaquith, Michael ;

Muller, Erik M. ;

Marohn, John A. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (27) :7711-7714

[30]

JURCHESCU OD, 2005, APPL PHYS LETT, P87

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