The effect of poly(3-hexylthiophene) molecular weight on charge transport and the performance of polymer:fullerene solar cells

被引：239

作者：

Ballantyne, Amy M. ^{[1
]}

Chen, Lichun ^{[1
]}

Dane, Justin ^{[1
]}

Hammant, Thomas ^{[1
]}

Braun, Felix M. ^{[1
]}

Heeney, Martin ^{[2
]}

Duffy, Warren ^{[3
]}

McCulloch, Iain ^{[4
]}

Bradley, Donal D. C. ^{[1
]}

Nelson, Jenny ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England

[2] Queen Mary Univ London, Dept Mat, London E1 4NS, England

[3] Chilworth Sci Pk, Merck Chem, Southampton SO16 7QD, Hants, England

[4] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England

来源：

ADVANCED FUNCTIONAL MATERIALS | 2008年 / 18卷 / 16期

关键词：

D O I：

10.1002/adfm.200800145

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The time-of-flight method has been used to study the effect of P3HT molecular weight (M-n = 13-121 kDa) on charge mobility in pristine and PCBM blend films using highly regioregular P3HT. Hole mobility was observed to remain constant at 10(-4) cm(2) V-1 s(-1) its molecular weight was increased from 13-18 kDa, but then decreased by one order of magnitude as molecular weight was further increased from 34-121 kDa. The decrease in charge mobility observed in blend films is accompanied by a change in surface morphology, and leads to a decrease in the performance of photovoltaic devices made front these blend films.

引用

页码：2373 / 2380

页数：8

共 29 条

[1]

BALLANTYNE AM, 2006, P SPIE INT SOC OPT E, V6334

[2] Soluble and processable regioregular poly(3-hexylthiophene) for thin film field-effect transistor applications with high mobility [J].

Bao, Z ;

Dodabalapur, A ;

Lovinger, AJ .

APPLIED PHYSICS LETTERS, 1996, 69 (26) :4108-4110

[3] Morphology evolution via self-organization and lateral and vertical diffusion in polymer: fullerene solar cell blends [J].

Campoy-Quiles, Mariano ;

Ferenczi, Toby ;

Agostinelli, Tiziano ;

Etchegoin, Pablo G. ;

Kim, Youngkyoo ;

Anthopoulos, Thomas D. ;

Stavrinou, Paul N. ;

Bradley, Donal D. C. ;

Nelson, Jenny .

NATURE MATERIALS, 2008, 7 (02) :158-164

[4] Enhanced mobility of poly(3-hexylthiophene) transistors by spin-coating from high-boiling-point solvents [J].

Chang, JF ;

Sun, BQ ;

Breiby, DW ;

Nielsen, MM ;

Sölling, TI ;

Giles, M ;

McCulloch, I ;

Sirringhaus, H .

CHEMISTRY OF MATERIALS, 2004, 16 (23) :4772-4776

[5] Molecular-weight dependence of interchain polaron delocalization and exciton bandwidth in high-mobility conjugated polymers [J].

Chang, Jui-Fen ;

Clark, Jenny ;

Zhao, Ni ;

Sirringhaus, Henning ;

Breiby, Dag W. ;

Andreasen, Jens W. ;

Nielsen, Martin M. ;

Giles, Mark ;

Heeney, Martin ;

McCulloch, Iain .

PHYSICAL REVIEW B, 2006, 74 (11)

[6] High ambipolar and balanced carrier mobility in regioregular poly(3-hexylthiophene) [J].

Choulis, SA ;

Kim, Y ;

Nelson, J ;

Bradley, DDC ;

Giles, M ;

Shkunov, M ;

McCulloch, I .

APPLIED PHYSICS LETTERS, 2004, 85 (17) :3890-3892

[7]

Cowie J., 1991, POLYM CHEM PHYS MODE

[8] Influence of polymer-blend morphology on charge transport and photocurrent generation in donor-acceptor polymer blends [J].

Frost, Jarvist M. ;

Cheynis, Fabien ;

Tuladhar, Sachetan M. ;

Nelson, Jenny .

NANO LETTERS, 2006, 6 (08) :1674-1681

[9] Improvements of fill factor in solar cells based on blends of polyfluorene copolymers as electron donors [J].

Gadisa, Abay ;

Zhang, Fengling ;

Sharma, Deepak ;

Svensson, Mattias ;

Andersson, Mats R. ;

Inganas, Olle .

THIN SOLID FILMS, 2007, 515 (05) :3126-3131

[10] The influence of molecular weight distribution on the optimal thermal treatment of poly(3-hexythiophene) based bulk heterojunction photovoltaic cells [J].

Hiorns, R. C. ;

de Bettignies, R. ;

Leroy, J. ;

Bailly, S. ;

Firon, M. ;

Sentein, C. ;

Preud'homme, H. ;

Dagron-Lartigau, C. .

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, 2006, 36 (03) :295-300

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