| 초록 |
The novel π-conjugated polymers, poly(N-(3,4-bis(decyloxy)phenyl)carbazolyl-2,7-vinylene) (PCzV) and poly[N-(3,4-bis(decyloxy)phenyl)carbazolyl-2,7-vinylene)-co-{2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene}] (PCzV-co-MEH-PPV) were synthesized by using the Gilch polymerization method and their photovoltaic properties were investigated. The newly designed and highly branched polymers, formed from PCzV and PCzV-co-MEH-PPV, are soluble in common organic solvents and easily spin coated onto indium-tin oxide (ITO) coated glass substrates. The bulk heterojunction solar cell with PCzV-co-MEH-PPV:PC61BM (1:6 wt/wt) has a power conversion efficiency (PCE) of 2.31 % (Jsc= 6.43 mA/cm2, Voc = 0.82 V, FF = 44 %), measured using an AM 1.5 G solar simulator at 100 mW/cm2 light illumination. |
