Charge photogeneration and transport in side-chain carbazole polymers and co-polymers

Huawei Li; Roberto Termine; Nicolas Godbert; Luigi Angiolini; Loris Giorgini; Attilio Golemme

doi:10.1016/j.orgel.2011.03.043

Charge photogeneration and transport in side-chain carbazole polymers and co-polymers

Huawei Li, Roberto Termine, Nicolas Godbert, Luigi Angiolini, Loris Giorgini, Attilio Golemme

Physical Sciences and Engineering

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

15 Scopus citations

Abstract

The photoconductivity, hole mobility and charge photogeneration efficiency of a series of side-chain carbazole homopolymers and copolymers (with azo side-chains) have been investigated. Cyclic voltammetry measurement of frontier orbitals energies show that the HOMO energy is determined by the nature and the position of attachment of the linker between the main chain and the carbazole, the azo-moiety being not relevant in this respect. Hole mobility is not influenced by the HOMO energy but seems to depend on the degree of conformational mobility of the side-chains, reaching values of the order of 10-3cm2V-1s-1 in the best cases. The HOMO energy is instead extremely important when considering photogeneration efficiency, that can change by 10 orders of magnitude depending on the density of the carbazole side-chains in co-polymers and on the linker nature and attachment position. © 2011 Elsevier B.V. All rights reserved.

Original language	English (US)
Pages (from-to)	1184-1191
Number of pages	8
Journal	Organic Electronics
Volume	12
Issue number	7
DOIs	https://doi.org/10.1016/j.orgel.2011.03.043
State	Published - Jul 2011

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01

ASJC Scopus subject areas

Materials Chemistry
Biomaterials
General Chemistry
Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering
Condensed Matter Physics

Access to Document

10.1016/j.orgel.2011.03.043

Cite this

@article{404680051f684308a288fe5109564519,

title = "Charge photogeneration and transport in side-chain carbazole polymers and co-polymers",

abstract = "The photoconductivity, hole mobility and charge photogeneration efficiency of a series of side-chain carbazole homopolymers and copolymers (with azo side-chains) have been investigated. Cyclic voltammetry measurement of frontier orbitals energies show that the HOMO energy is determined by the nature and the position of attachment of the linker between the main chain and the carbazole, the azo-moiety being not relevant in this respect. Hole mobility is not influenced by the HOMO energy but seems to depend on the degree of conformational mobility of the side-chains, reaching values of the order of 10-3cm2V-1s-1 in the best cases. The HOMO energy is instead extremely important when considering photogeneration efficiency, that can change by 10 orders of magnitude depending on the density of the carbazole side-chains in co-polymers and on the linker nature and attachment position. {\textcopyright} 2011 Elsevier B.V. All rights reserved.",

author = "Huawei Li and Roberto Termine and Nicolas Godbert and Luigi Angiolini and Loris Giorgini and Attilio Golemme",

note = "KAUST Repository Item: Exported on 2020-10-01",

year = "2011",

month = jul,

doi = "10.1016/j.orgel.2011.03.043",

language = "English (US)",

volume = "12",

pages = "1184--1191",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

number = "7",

}

TY - JOUR

T1 - Charge photogeneration and transport in side-chain carbazole polymers and co-polymers

AU - Li, Huawei

AU - Termine, Roberto

AU - Godbert, Nicolas

AU - Angiolini, Luigi

AU - Giorgini, Loris

AU - Golemme, Attilio

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2011/7

Y1 - 2011/7

N2 - The photoconductivity, hole mobility and charge photogeneration efficiency of a series of side-chain carbazole homopolymers and copolymers (with azo side-chains) have been investigated. Cyclic voltammetry measurement of frontier orbitals energies show that the HOMO energy is determined by the nature and the position of attachment of the linker between the main chain and the carbazole, the azo-moiety being not relevant in this respect. Hole mobility is not influenced by the HOMO energy but seems to depend on the degree of conformational mobility of the side-chains, reaching values of the order of 10-3cm2V-1s-1 in the best cases. The HOMO energy is instead extremely important when considering photogeneration efficiency, that can change by 10 orders of magnitude depending on the density of the carbazole side-chains in co-polymers and on the linker nature and attachment position. © 2011 Elsevier B.V. All rights reserved.

AB - The photoconductivity, hole mobility and charge photogeneration efficiency of a series of side-chain carbazole homopolymers and copolymers (with azo side-chains) have been investigated. Cyclic voltammetry measurement of frontier orbitals energies show that the HOMO energy is determined by the nature and the position of attachment of the linker between the main chain and the carbazole, the azo-moiety being not relevant in this respect. Hole mobility is not influenced by the HOMO energy but seems to depend on the degree of conformational mobility of the side-chains, reaching values of the order of 10-3cm2V-1s-1 in the best cases. The HOMO energy is instead extremely important when considering photogeneration efficiency, that can change by 10 orders of magnitude depending on the density of the carbazole side-chains in co-polymers and on the linker nature and attachment position. © 2011 Elsevier B.V. All rights reserved.

UR - http://hdl.handle.net/10754/561805

UR - https://linkinghub.elsevier.com/retrieve/pii/S1566119911001285

UR - http://www.scopus.com/inward/record.url?scp=79955515314&partnerID=8YFLogxK

U2 - 10.1016/j.orgel.2011.03.043

DO - 10.1016/j.orgel.2011.03.043

M3 - Article

SN - 1566-1199

VL - 12

SP - 1184

EP - 1191

JO - Organic Electronics

JF - Organic Electronics

IS - 7

ER -

Charge photogeneration and transport in side-chain carbazole polymers and co-polymers

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this