Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 95, Issue 12, Pages 3377-3384Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2011.07.033
Keywords
Organic photovoltaics; Phthalimide; Conjugated polymers; Copolymerization
Funding
- Fundamental R&D Program for Core Technology of Materials
- Ministry of Knowledge Economy, Republic of Korea
- National Research Foundation of Korea
- Korean Government (MEST) [NRF-2009-C1 AAA001-2009-0093526]
Ask authors/readers for more resources
We report on two push-pull type polymer semiconductors involving phthalimide derivatives as electron withdrawing units. The solubility and energy level of phthalimide could be easily controlled by introducing various functional groups in its nitrogen site. Additionally, the V(oc) value of polymer semiconductor materials with phthalimide as an electron withdrawing unit could be efficiently enhanced because of the low HOMO energy level of phthalimide. Nevertheless, there are just a few of studies regarding the use of phthalimide in OPVs. In this study, we synthesized two photovoltaic polymer materials based on phthalimide with high V(oc) value, PFTPT and PCTPT. Between the two polymers. PCTPT/PC(71)BM-based photovoltaic cell afforded the best PCE value of 1.4% (V(oc)=0.94 V. J(sc)=4.41 mA/cm(2), FF=0.33) under 100 mW/cm(2) irradiation. In addition, a promising strategy for the development of high performance photovoltaic polymers with phthalimide derivatives as electron withdrawing units was investigated. (C) 2011 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available