Lee, Tae Wan Kim, Dae Cheol Kang, Nam Su Yu, Jae Woong Cho, Min Ju Kim, Kyung Hwan Choi, Dong Hoon 2024-01-20T23:00:38Z 2024-01-20T23:00:38Z 2021-09-03 2008-08-05 0366-7022 https://pubs.kist.re.kr/handle/201004/133241 A new multibranched crystalline Molecule was synthesized through Horner-Emmons reactions Using hexyl-substituted thiophene-based carbaldehydes as dendrons and benzene-1,2,4,5-tetramethylphosphonic acid octaethyl ester its the core unit. The molecule was employed to fabricate organic photovoltaic (OPV) cells with methanofullerene [6.6]-phenyl C61-butyric acid methyl ester (PCBM). Poly(3-hexylthiophene) (P3HT) wits also used its a dopant to improve the film quality and power conversion efficiency. As a result, the short-circuit current density and open Circuit voltage were increased when P3HT was added into 4(HPBT) and PCBM dyad. resulting in a hi,,her power conversion efficiency of around 0.6%. English CHEMICAL SOC JAPAN TRANSISTOR APPLICATIONS SOLAR-CELLS SEMICONDUCTORS Bulk heterojunction organic photovoltaic cell fabricated with a p-type conjugated star-shaped molecule Article 10.1246/cl.2008.866 1 CHEMISTRY LETTERS, v.37, no.8, pp.866 - 867 CHEMISTRY LETTERS 37 8 866 867 scie scopus 000259590600028 2-s2.0-51149104553 Chemistry, Multidisciplinary Chemistry Article TRANSISTOR APPLICATIONS SOLAR-CELLS SEMICONDUCTORS Organic Photovoltaic Bulk Heterojunction Star-shaped conjugated molecule