Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Diketopyrrolopyrrole-based copolymers bearing highly pi-extended donating units and their thin-film transistors and photovoltaic cells

Authors
Cho, Min JuShin, JicheolHong, Tae RyangUm, Hyun AhLee, Tae WanKim, Gyeong WooKwon, Jang HyukChoi, Dong Hoon
Issue Date
7-1월-2015
Publisher
ROYAL SOC CHEMISTRY
Citation
POLYMER CHEMISTRY, v.6, no.1, pp.150 - 159
Indexed
SCIE
SCOPUS
Journal Title
POLYMER CHEMISTRY
Volume
6
Number
1
Start Page
150
End Page
159
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/94656
DOI
10.1039/c4py01112k
ISSN
1759-9954
Abstract
New diketopyrrolopyrrole (DPP)-based pi-extended conjugated polymers containing relatively long conjugated donor monomers were successfully synthesized in order to investigate their physical properties and device performance in thin-film transistors and photovoltaic cells. The solubility of the polymers was improved via side-chain engineering, and relatively high molecular weights were achieved by modifying the synthetic procedures. The highest occupied molecular orbital and the lowest unoccupied molecular orbital and optical bandgaps of the polymers were easily tuned by incorporating different donor monomers with different donating abilities. All polymers were highly crystalline with a predominant edge-on orientation on the substrate. The polymers displayed different hole mobilities in TFTs depending on the donor monomer. The highest mobility was 4.17 cm(2) V-1 s(-1), which was shown by the TFT fabricated with a terselenophene-containing DPP polymer after thermal annealing. Furthermore, bulk heterojunction organic photovoltaic cells made from a blend film of the polymers and (6,6)-phenyl C-71-butyric acid methyl ester demonstrated promising device performance with power conversion efficiencies in the range of 3.48-5.05%.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Science > Department of Chemistry > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher CHOI, DONG HOON photo

CHOI, DONG HOON
이과대학 (화학과)
Read more

Altmetrics

Total Views & Downloads

BROWSE