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Functionalized bay-substituted perylene diimide additives for inverted organic photovoltaic devices based on P3HT/PCBM

H. DİNÇALP1,* , O. ÇİMEN1, G. MURAT SALTAN1, S. İÇLİ2

Affiliation

  1. Department of Chemistry, Faculty of Arts and Science, Celal Bayar University, Muradiye Campus, 45140 Yunus Emre-Manisa/Turkey
  2. Solar Energy Institute, Ege University, Bornova, 35100 Izmir/Turkey

Abstract

The photovoltaic performances of inverted organic solar cells including P3HT:PCBM active layer with perylene diimides (PDIs) substituted with different subunits at bay positions of perylene ring were investigated. The improvement of photoluminescence intensity for P3HT:PCBM blend was achieved by the increase of PDI1 additive amount from 6.6 to 10 wt%. In P3HT:PDI1:PCBM ternary blend, preliminary results obtained from cell measurements indicated that PDI1 dopant has improved the cell efficiency by 38% compared to the control cell. Carrier mobility studies revealed that electron or hole mobility capacities of the perylene additives in ternary blends gave a more detailed explanation for efficiencies both binary and ternary systems..

Keywords

Perylene diimide; Organic photovoltaic; Solution processable; Inverted structure; Space charge limited current regime.

Submitted at: Dec. 6, 2013
Accepted at: May 7, 2015

Citation

H. DİNÇALP, O. ÇİMEN, G. MURAT SALTAN, S. İÇLİ, Functionalized bay-substituted perylene diimide additives for inverted organic photovoltaic devices based on P3HT/PCBM, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 5-6, pp. 579-589 (2015)