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

Amy M. Ballantyne; Lichun Chen; Justin Dane; Thomas Hammant; Felix M. Braun; Martin Heeney; Warren Duffy; Iain McCulloch; Donal D.C. Bradley; Jenny Nelson

doi:10.1002/adfm.200800145

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

Amy M. Ballantyne
, Lichun Chen
, Justin Dane
, Thomas Hammant
, Felix M. Braun
, Martin Heeney
, Warren Duffy
, Iain McCulloch
, Donal D.C. Bradley
, Jenny Nelson

Research output: Contribution to journal › Article › peer-review

254 Scopus citations

Abstract

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^-4cm²V^-1 s^-1 as 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 from these blend films.

Original language	English (US)
Pages (from-to)	2373-2380
Number of pages	8
Journal	Advanced Functional Materials
Volume	18
Issue number	16
DOIs	https://doi.org/10.1002/adfm.200800145
State	Published - Aug 22 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

Access to Document

10.1002/adfm.200800145

Cite this

@article{9b0bcb767e244f288bbc84092f4365a7,

title = "The effect of poly(3-hexylthiophene) molecular weight on charge transport and the performance of polymer: Fullerene solar cells",

abstract = "The time-of-flight method has been used to study the effect of P3HT molecular weight (Mn = 13-121 kDa) on charge mobility in pristine and PCBM blend films using highly regioregular P3HT. Hole mobility was observed to remain constant at 10-4cm2V-1 s-1 as 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 from these blend films.",

author = "Ballantyne, \{Amy M.\} and Lichun Chen and Justin Dane and Thomas Hammant and Braun, \{Felix M.\} and Martin Heeney and Warren Duffy and Iain McCulloch and Bradley, \{Donal D.C.\} and Jenny Nelson",

year = "2008",

month = aug,

day = "22",

doi = "10.1002/adfm.200800145",

language = "English (US)",

volume = "18",

pages = "2373--2380",

journal = "Advanced Functional Materials",

issn = "1616-301X",

publisher = "John Wiley and Sons Inc.",

number = "16",

}

TY - JOUR

T1 - The effect of poly(3-hexylthiophene) molecular weight on charge transport and the performance of polymer

T2 - Fullerene solar cells

AU - Ballantyne, Amy M.

AU - Chen, Lichun

AU - Dane, Justin

AU - Hammant, Thomas

AU - Braun, Felix M.

AU - Heeney, Martin

AU - Duffy, Warren

AU - McCulloch, Iain

AU - Bradley, Donal D.C.

AU - Nelson, Jenny

PY - 2008/8/22

Y1 - 2008/8/22

N2 - The time-of-flight method has been used to study the effect of P3HT molecular weight (Mn = 13-121 kDa) on charge mobility in pristine and PCBM blend films using highly regioregular P3HT. Hole mobility was observed to remain constant at 10-4cm2V-1 s-1 as 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 from these blend films.

AB - The time-of-flight method has been used to study the effect of P3HT molecular weight (Mn = 13-121 kDa) on charge mobility in pristine and PCBM blend films using highly regioregular P3HT. Hole mobility was observed to remain constant at 10-4cm2V-1 s-1 as 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 from these blend films.

UR - https://www.scopus.com/pages/publications/50949125965

UR - https://www.scopus.com/pages/publications/50949125965#tab=citedBy

U2 - 10.1002/adfm.200800145

DO - 10.1002/adfm.200800145

M3 - Article

AN - SCOPUS:50949125965

SN - 1616-301X

VL - 18

SP - 2373

EP - 2380

JO - Advanced Functional Materials

JF - Advanced Functional Materials

IS - 16

ER -

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

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this