liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Double doping of conjugated polymers with monomer molecular dopants
Chalmers Univ Technol, Sweden.
Chalmers Univ Technol, Sweden.
Chalmers Univ Technol, Sweden.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.
Show others and affiliations
2019 (English)In: Nature Materials, ISSN 1476-1122, E-ISSN 1476-4660, Vol. 18, no 2, p. 149-+Article in journal (Refereed) Published
Abstract [en]

Molecular doping is a crucial tool for controlling the charge-carrier concentration in organic semiconductors. Each dopant molecule is commonly thought to give rise to only one polaron, leading to a maximum of one donor: acceptor charge-transfer complex and hence an ionization efficiency of 100%. However, this theoretical limit is rarely achieved because of incomplete charge transfer and the presence of unreacted dopant. Here, we establish that common p-dopants can in fact accept two electrons per molecule from conjugated polymers with a low ionization energy. Each dopant molecule participates in two charge-transfer events, leading to the formation of dopant dianions and an ionization efficiency of up to 200%. Furthermore, we show that the resulting integer charge-transfer complex can dissociate with an efficiency of up to 170%. The concept of double doping introduced here may allow the dopant fraction required to optimize charge conduction to be halved.

Place, publisher, year, edition, pages
NATURE PUBLISHING GROUP , 2019. Vol. 18, no 2, p. 149-+
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-154681DOI: 10.1038/s41563-018-0263-6ISI: 000456325600016PubMedID: 30643236OAI: oai:DiVA.org:liu-154681DiVA, id: diva2:1292655
Note

Funding Agencies|Swedish Research Council [2016-06146, 2016-03979, 201605498]; Knut and Alice Wallenberg Foundation through a Wallenberg Academy Fellowship; European Research Council (ERC) [637624]; NIH/NIGMS through NSF [DMR-1332208]; US National Science Foundation [DMR-1729737]; VINNOVA [2015-04859]; US Department of Energy, Office of Basic Energy Sciences [DE-SC0010419]; Engineering and Physical Sciences Research Council [EP/G037515/1]

Available from: 2019-02-28 Created: 2019-02-28 Last updated: 2019-03-26

Open Access in DiVA

fulltext(541 kB)17 downloads
File information
File name FULLTEXT01.pdfFile size 541 kBChecksum SHA-512
15129d5f949c55c08a6af0432d1051f418c6952cdbb97a35a977b266c5e814d1112d4899a8c3a6cee619b8e9ec29636fb4ac447ef0c732fe9d52f678d09790e8
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Sun, HengdaLiu, XianjieKemerink, MartijnFahlman, MatsFabiano, Simone
By organisation
Physics and ElectronicsFaculty of Science & EngineeringSurface Physics and ChemistryComplex Materials and Devices
In the same journal
Nature Materials
Physical Chemistry

Search outside of DiVA

GoogleGoogle Scholar
Total: 17 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 533 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf