Bis(1,2,5-thiadiazolo)-p-quinobis(1,3-dithiole) (BTQBT) templating effect on structure and performance of organic solar cells

Yasuhiro Iwasawa, Yukio Furukawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have studied the templating effect of bis(1,2,5-thiadiazolo)-p-quinobis(1,3-dithiole) (BTQBT) on structure and performance of organic solar cells having the multilayer of ITO/BTQBT/metal-free phthalocyanine (H2Pc)/C60/2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP)/Al. Orientation of H2Pc molecules has been studied by infrared reflection-absorption spectroscopy. The angle between the molecular plane and the substrate surface was 82° for an ITO/H2Pc sample, whereas 32 ° for an ITO/BTQBT/H2Pc sample. The angle depends on the materials below the H2Pc layer. The short-circuit current was increased from 3.97 to 5.45 mA/cm2 by the insertion of the BTQBT layer. This result probably originates from the change in orientation of H2Pc molecules. The power conversion efficiency of the solar cell with the ITO/BTQBT/H2Pc/C60/BCP/Al structure was 1.4 %, whereas that of a cell without the BTQBT layer was 1.1 %. The efficiency was also enhanced by the insertion of the BTQBT layer.

Original languageEnglish
Title of host publicationPadjadjaran International Physics Symposium 2013, PIPS 2013 - Contribution of Physics on Environmental and Energy Conservations
Pages47-49
Number of pages3
DOIs
Publication statusPublished - 2013 Oct 9
EventPadjadjaran International Physics Symposium 2013: Contribution of Physics on Environmental and Energy Conservations, PIPS 2013 - Jatinangor, Bandung, Indonesia
Duration: 2013 May 72013 May 9

Publication series

NameAIP Conference Proceedings
Volume1554
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferencePadjadjaran International Physics Symposium 2013: Contribution of Physics on Environmental and Energy Conservations, PIPS 2013
CountryIndonesia
CityJatinangor, Bandung
Period13/5/713/5/9

Keywords

  • BTQBT
  • Infrared
  • Organic solar cells
  • Templating effect

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Iwasawa, Y., & Furukawa, Y. (2013). Bis(1,2,5-thiadiazolo)-p-quinobis(1,3-dithiole) (BTQBT) templating effect on structure and performance of organic solar cells. In Padjadjaran International Physics Symposium 2013, PIPS 2013 - Contribution of Physics on Environmental and Energy Conservations (pp. 47-49). (AIP Conference Proceedings; Vol. 1554). https://doi.org/10.1063/1.4820280