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Diketopyrrolopyrrole Polymers with Thienyl and Thiazolyl Linkers for Application in Field-Effect Transistors and Polymer Solar Cells
- Source :
- ACS Applied Materials & Interfaces. 8:30328-30335
- Publication Year :
- 2016
- Publisher :
- American Chemical Society (ACS), 2016.
-
Abstract
- Conjugated polymers consisting of diketopyrrolopyrrole (DPP) units have been successfully applied in field-effect transistors (FETs) and polymer solar cells (PSCs), while most of the DPP polymers were designed as symmetric structures containing identical aromatic linkers. In this manuscript, we design a new asymmetric DPP polymer with varied aromatic linkers in the backbone for application in FETs and PSCs. The designation provides the chance to finely adjust the energy levels of conjugated polymers so as to influence the device performance. The asymmetric polymer exhibits highly crystalline properties, high hole mobilities of 3.05 cm2 V–1 s–1 in FETs, and a high efficiency of 5.9% in PSCs with spectra response from 300 to 850 nm. Morphology investigation demonstrates that the asymmetric polymer has a large crystal domain in blended thin films, indicating that the solar cell performance can be further enhanced by optimizing the microphase separation. The study reveals that the asymmetric design via adjust...
- Subjects :
- chemistry.chemical_classification
Materials science
Transistor
02 engineering and technology
Polymer
Conjugated system
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Polymer solar cell
0104 chemical sciences
law.invention
Crystal
chemistry
Chemical engineering
law
Polymer chemistry
Solar cell
General Materials Science
Field-effect transistor
Thin film
0210 nano-technology
Subjects
Details
- ISSN :
- 19448252 and 19448244
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- ACS Applied Materials & Interfaces
- Accession number :
- edsair.doi.dedup.....c592f594ceca3b7c50dd3db8df12ec10