25th Anniversary Article: Isoindigo- Based Polymers and Small Molecules for Bulk Heterojunction Solar Cells and Field Effect Transistors
Review article, 2014

Driven by the potential advantages and promising applications of organic solar cells, donor-acceptor (D-A) polymers have been intensively investigated in the past years. One of the strong electron-withdrawing groups that were widely used as acceptors for the construction of D-A polymers for applications in polymer solar cells and FETs is isoindigo. The isoindigo-based polymer solar cells have reached efficiencies up to approximate to 7% and hole mobilities as high as 3.62 cm(2) V-1 s(-1) have been realized by FETs based on isoindigo polymers. Over one hundred isoindigo-based small molecules and polymers have been developed in only three years. This review is an attempt to summarize the structures and properties of the isoindigo-based polymers and small molecules that have been reported in the literature since their inception in 2010. Focus has been given only to the syntheses and device performances of those polymers and small molecules that were designed for use in solar cells and FETs. Attempt has been made to deduce structure-property relationships that would guide the design of isoindigo-based materials. It is expected that this review will present useful guidelines for the design of efficient isoindigo-based materials for applications in solar cells and FETs.

isoindigo

CONVERSION EFFICIENCY

conjugated polymers

ELECTRON-DONOR

SEMICONDUCTING POLYMERS

field effect transistors

conjugated small molecules

PHOTOVOLTAIC PROPERTIES

THIN-FILM TRANSISTORS

OPEN-CIRCUIT VOLTAGE

LIGHT-EMITTING-DIODES

solar cells

POWER

LOW-BANDGAP POLYMER

CONJUGATED POLYMERS

HOLE MOBILITIES

Author

Ergang Wang

Chalmers, Chemical and Biological Engineering, Polymer Technology

W. Mammo

Addis Ababa University

Mats Andersson

Chalmers, Chemical and Biological Engineering, Polymer Technology

Advanced Materials

09359648 (ISSN) 15214095 (eISSN)

Vol. 26 12 1801-1826

Subject Categories

Materials Engineering

Condensed Matter Physics

DOI

10.1002/adma.201304945

More information

Latest update

7/12/2021