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
A New Tetracyclic Lactam Building Block for Thick, Broad-Bandgap Photovoltaics
University of S Australia, Australia Chalmers, Sweden .
Chalmers, Sweden .
Stanford University, CA 94305 USA .
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, The Institute of Technology.
Show others and affiliations
2014 (English)In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 136, no 33, 11578-11581 p.Article in journal (Refereed) Published
Abstract [en]

A new tetracyclic lactam building block for polymer semiconductors is reported that was designed to combine the many favorable properties that larger fused and/or amide-containing building blocks can induce, including improved solid-state packing, high charge carrier mobility, and improved charge separation. Copolymerization with thiophene resulted in a semicrystalline conjugated polymer, PTNT, with a broad bandgap of 2.2 eV. Grazing incidence wide-angle X-ray scattering of PTNT thin films revealed a strong tendency for face-on pi-stacking of the polymer backbone, which was retained in PTNT:firllerene blends. Corresponding solar cells featured a high open-circuit voltage of 0.9 V, a fill factor around 0.6, and a power conversion efficiency as high as 596 for greater than200 nm thick active layers, regardless of variations in blend stoichiometry and nanostructure. Moreover, efficiencies of greater than4% could be retained when thick active layers of similar to 400 rim were employed. Overall, these values are the highest reported for a conjugated polymer with such a broad bandgap and are unprecedented in materials for tandem and particularly ternary blend photovoltaics. Hence, the newly developed tetracyclic lactam unit has significant potential as a conjugated building block in future organic electronic materials.

Place, publisher, year, edition, pages
American Chemical Society , 2014. Vol. 136, no 33, 11578-11581 p.
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:liu:diva-110700DOI: 10.1021/ja5051692ISI: 000340737900005PubMedID: 25056482OAI: oai:DiVA.org:liu-110700DiVA: diva2:749239
Note

Funding Agencies|Chalmers Areas of Advance Materials Science, Energy and Nanoscience and Nanotechnology; Swedish Research Council; Formas; Swedish Energy Agency; Linnaeus Centre for Bioinspired Supramolecular Function and Design; National Science Foundation; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-76SF00515]

Available from: 2014-09-23 Created: 2014-09-19 Last updated: 2017-12-05

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Authority records BETA

Bergqvist, JonasGao, FengInganäs, Olle

Search in DiVA

By author/editor
Bergqvist, JonasGao, FengInganäs, Olle
By organisation
Biomolecular and Organic ElectronicsThe Institute of Technology
In the same journal
Journal of the American Chemical Society
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 457 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