Chiral (S)-5-octyloxy-2-[{4-(2-methylbuthoxy)-phenylimino}-methyl]-phenol liquid crystalline compound as additive into polymer solar cells

CANLI N., GÜNEŞ S., PIVRIKAS A., FUCHSBAUER A., SINWEL D., SARICIFTCI N. S., ...More

SOLAR ENERGY MATERIALS AND SOLAR CELLS, vol.94, no.6, pp.1089-1099, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 94 Issue: 6
  • Publication Date: 2010
  • Doi Number: 10.1016/j.solmat.2010.02.030
  • Journal Name: SOLAR ENERGY MATERIALS AND SOLAR CELLS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1089-1099
  • Keywords: Liquid crystal, Organic solar cells, Polymer solar cells, Conjugated polymers, ORGANIC PHOTOVOLTAICS, CHARGE-TRANSPORT, POSTPRODUCTION TREATMENT, LARGE-AREA, POLY(3-HEXYLTHIOPHENE), POLYTHIOPHENE, PHOTODIODES, PERFORMANCE, FABRICATION, RELAXATION
  • Yıldız Technical University Affiliated: Yes

Abstract

We have investigated the effect of new chiral (S)-5-octyloxy-2-[{4-(2-methylbuthoxy)-phenylimino}-methyl]-phenol liquid crystalline compound (LC) addition into bulk-heterojunction solar cells, based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C-61-butyric acid methyl ester (PCBM) mixtures. Based on current-voltage characteristics and transient charge carrier extraction by linearly increasing voltage (CELIV) measurements, the efficiency of devices with liquid crystal is found to be higher than that of devices from pristine blends of P3HT-PCBM. It is found that the charge carrier mobility increased significantly in the devices with liquid crystals. (C) 2010 Elsevier B.V. All rights reserved.