Exciton Dynamics of P3HT:PCBM Blend Films with Different Polymer Regioregularities Using Transient Absorption Spectroscopy

被引：5

作者：

Lee, Sunae ^{[1
]}

Lee, Myounghee ^{[1
]}

An, Jongdeok ^{[1
]}

Ahme, Helene ^{[1
,3
]}

Im, Chan ^{[1
,2
]}

机构：

[1] Konkuk Univ, Fraunhofer ISE Next Generat Solar Cell Res Ctr, Seoul 143701, South Korea

[2] Konkuk Univ, Dept Chem, Seoul 143701, South Korea

[3] Fraunhofer Inst Solar Energy Syst ISE, Freiburg, Germany

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2013年 / 578卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Exciton dynamics; organic photovoltaics; P3HT:PCBM; transient absorption spectroscopy; CHARGE-TRANSFER; SOLAR-CELLS;

D O I：

10.1080/15421406.2013.804381

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The poly(3-hexylthiophene) (P3HT) and phenyl-C-61-butyric acid methyl ester (PCBM) blending is one of the most intensively studied active material systems for bulk-heterojunction (BHJ) organic photovoltaic devices. For the active layer with BHJ structure, the charge tranfer (CT) and exciton dissociation processes between P3HT and PCBM are the important initial steps to form free charge carriers in the active layer. To compare the CT related species from the transient absorption dynamics in P3HT:PCBM blend systems with different orderings of the polymer, we investigated the charge carrier dynamics in P3HT:PCBM blend films with regiorandom and regioregular polymer structures using femtosecond transient absorption spectroscopy.

引用

页码：68 / 72

页数：5

共 14 条

[1] Ultrafast Hole-Transfer Dynamics in Polymer/PCBM Bulk Heterojunctions [J].

Bakulin, Artem A. ;

Hummelen, Jan C. ;

Pshenichnikov, Maxim S. ;

van Loosdrecht, Paul H. M. .

ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (10) :1653-1660

[2] Role of the Charge Transfer State in Organic Donor-Acceptor Solar Cells [J].

Deibel, Carsten ;

Strobel, Thomas ;

Dyakonov, Vladimir .

ADVANCED MATERIALS, 2010, 22 (37) :4097-4111

[3] Bimodal Polarons and Hole Transport in Poly(3-hexylthiophene):Fullerene Blend Films [J].

Guo, Jiamo ;

Ohkita, Hideo ;

Yokoya, Seiichirou ;

Benten, Hiroaki ;

Ito, Shinzaburo .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (28) :9631-9637

[4] Near-IR Femtosecond Transient Absorption Spectroscopy of Ultrafast Polaron and Triplet Exciton Formation in Polythiophene Films with Different Regioregularities [J].

Guo, Jiamo ;

Ohkita, Hideo ;

Benten, Hiroaki ;

Ito, Shinzaburo .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (46) :16869-16880

[5] Photoinduced carrier generation in P3HT/PCBM bulk heterojunction materials [J].

Hwang, In-Wook ;

Moses, Daniel ;

Heeger, Alan J. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (11) :4350-4354

[6] Photoexcitation dynamics in regioregular and regiorandom polythiophene films -: art. no. 235122 [J].

Korovyanko, OJ ;

Österbacka, R ;

Jiang, XM ;

Vardeny, ZV ;

Janssen, RAJ .

PHYSICAL REVIEW B, 2001, 64 (23)

[7] Ultrafast relaxation dynamics of photoexcitations in poly(3-hexylthiophene) for the determination of the defect concentration [J].

Lee, Yu Hsien ;

Yabushita, Atsushi ;

Hsu, Chain Shu ;

Yang, Sheng Hsiung ;

Iwakura, Izumi ;

Luo, Chih Wei ;

Wu, Kaung Hsiung ;

Kobayashi, Takayoshi .

CHEMICAL PHYSICS LETTERS, 2010, 498 (1-3) :71-76

[8] Effect of Annealing on P3HT:PCBM Charge Transfer and Nanoscale Morphology Probed by Ultrafast Spectroscopy [J].

Marsh, R. Alex ;

Hodgkiss, Justin M. ;

Albert-Seifried, Sebastian ;

Friend, Richard H. .

NANO LETTERS, 2010, 10 (03) :923-930

[9] The Impact of Polymer Regioregularity on Charge Transport and Efficiency of P3HT:PCBM Photovoltaic Devices [J].

Mauer, Ralf ;

Kastler, Marcel ;

Laquai, Frederic .

ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (13) :2085-2092

[10] Charge recombination in conjugated polymer/fullerene blended films studied by transient absorption Spectroscopy [J].

Nogueira, AF ;

Montanari, I ;

Nelson, J ;

Durrant, JR ;

Winder, C ;

Sariciftci, NS .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (07) :1567-1573

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