Study phase separation of donor: Acceptor in inkjet printed thin films of bulk heterojunction organic solar cells using afm phase imaging

Vivi Fauzia, Ali Umar Akrajas, Muhamad Mat Salleh, Muhammad Yahaya

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

This paper reports an application of Atomic Force Microscopy (AFM) phase imaging to observe the phase separation between electron donor and acceptor materials in bulk heterojunction organic solar cells. The solar cells were fabricated using inkjet printed thin films of blended poly (3-octylthiophene-2, 5-diyl)(P3OT) and (6,6)-phenyl C71 butyric acid methyl ester (PC 71BM) as donor and acceptor materials respectively. The content PC71BM in the blended was varying from 25, 50 and 75 wt %. The AFM phase images of the thin film which contains 25 wt % PC71BM indicated that the acceptor molecules, PC71BM, are well distributed in the polymer chain of donor material, P3OT. The solar cell contains this film has the highest generated photocurrent. Hence, the phase separation between electron donor and acceptor materials in bulk heterojunction organic solar cells is one essential aspect that influences generation of photocurrent.

Original languageEnglish
Title of host publicationNanomaterials
Subtitle of host publicationSynthesis and Characterization
Pages465-469
Number of pages5
DOIs
Publication statusPublished - 1 Jan 2012
Event2011 International Conference on Nanomaterials, Synthesis and Characterization, ICNSC2011 - Selangor, Malaysia
Duration: 4 Jul 20115 Jul 2011

Publication series

NameAdvanced Materials Research
Volume364
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Nanomaterials, Synthesis and Characterization, ICNSC2011
CountryMalaysia
CitySelangor
Period4/07/115/07/11

Keywords

  • AFM phase imaging
  • Bulk heterojunction
  • Inkjet printing
  • Organic solar cells
  • Phase separation

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