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Semiconductor amphiphilic block copolymers for hybrid donor-acceptor nanocomposites

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00004757
URN to cite this document: urn:nbn:de:bvb:703-epub-4757-5

Title data

Brendel, Johannes C. ; Burchardt, Hubertus ; Thelakkat, Mukundan:
Semiconductor amphiphilic block copolymers for hybrid donor-acceptor nanocomposites.
In: Journal of Materials Chemistry. Vol. 22 (December 2012) Issue 46 . - pp. 24386-24393.
ISSN 0959-9428
DOI der Verlagsversion: https://doi.org/10.1039/c2jm34033j

Project information

Project title:
Project's official titleProject's id
Von partikulären Nanosystemen zur MesotechnologieSFB840

Project financing: Deutsche Forschungsgemeinschaft

Abstract

Block copolymers feature unique properties for organizing in a well-defined pattern on length scales of several tenths of nanometers. This special attribute enables the formation of ideal donor and acceptor domains for photovoltaic devices in the size of the exciton diffusion length. Thus we designed an amphiphilic block copolymer, able to act as a hole conductor and to coordinate inorganic semiconductor nanoparticles as electron acceptors. Utilizing controlled radical polymerization techniques, defined polymers were synthesized consisting of triphenylamine pendant groups in the hole conductor block and a hydrophilic polystyrene sulfonate block. This particular combination creates narrowly distributed micelles in aqueous solution exhibiting domain sizes suitable for photovoltaic applications. The strong anionic sulfonate groups offer high loading capacities for modified cationic nanoparticles. To guarantee a broad absorption and good conductivity, we synthesized cationic CdSe nanorods and combined them with our hole conductor micelles. The advantage of high loading combined with the processability from aqueous dispersions promises a novel "green" alternative for preparation of hybrid solar cells with controlled domain sizes in the desired length scale.

Further data

Item Type: Article in a journal
Additional notes (visible to public): ISI:000311522600020
DDC Subjects: 500 Science > 540 Chemistry
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professor Applied Functional Polymers > Professor Applied Functional Polymers - Univ.-Prof. Dr. Mukundan Thelakkat
Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professor Applied Functional Polymers
Research Institutions
Research Institutions > Collaborative Research Centers, Research Unit
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-4757-5
Date Deposited: 04 Sep 2020 06:43
Last Modified: 04 Sep 2020 06:43
URI: https://epub.uni-bayreuth.de/id/eprint/4757

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