Synthesis of Graft Copolymers and Their Preliminary Use as a Compatibilizer in Polymer Solar Cells

Narumon Seeponkai Division of Materials Technology, School of Energy, Environment and Materials, King Mongkut's University of Technology Thonburi, Bangkok, Thailand

Jatuphorn Wootthikanokkhan Division of Materials Technology, School of Energy, Environment and Materials, King Mongkut's University of Technology Thonburi, Bangkok, Thailand; Nanotec-KMUTT Center of Excellence on Hybrid Nanomaterials for Alternative Energy, King Mongkut's University of Technology Thonburi (KMUTT), Bangkok, ThailandCorrespondence[email protected]

Chanchana Thanachayanont National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, (NSTDA), Pathumthani, Thailand

Sombat Thanawan Department of Chemistry, Faculty of Science, Mahidol University, Salaya, Nakhon Pathom, Thailand

Siriwat Radabutra Department of Chemistry, Faculty of Science, Mahidol University, Salaya, Nakhon Pathom, Thailand

Surawut Chuangchote The Joint Graduate School of Energy and Environment, King Mongkut's University of Technology Thonburi, Bangkok, Thailand

Abstract

Poly(p-xylylene)-graft-poly(butylacrylate-g-fullerene) or PPX-g-PBAFu was synthesized by using Wessling route and atom transfer radical addition (ATRA) techniques. The graft copolymers were used as a compatibilizer in the bulk heterojunction (BHJ) polymer solar cells of poly(3-hexylthiophene) (P3HT) and fullerene (C₆₀). The results from AFM micrographs showed that the phase size of P3HT and the aggregated C₆₀ in the blended system was decreased from 300 to 30 nm after adding the copolymer (20 pph). Furthermore, the efficiencies of the BHJ cells from J-V curve were remarkably increased five times after adding the copolymer.

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Synthesis of Graft Copolymers and Their Preliminary Use as a Compatibilizer in Polymer Solar Cells

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Synthesis of Graft Copolymers and Their Preliminary Use as a Compatibilizer in Polymer Solar Cells

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