Title :
The novel organic photovoltaic cell using inter-layer for hole-electron separation
Author :
You-Hyun Kim ; Sang Youn Lee ; Nam Ho Kim ; Moon, C.-B. ; Chul Gyu Jhun ; Woo Young Kim
Author_Institution :
Dept. of Green Energy & Semicond., Hoseo Univ., Asan, South Korea
Abstract :
We investigated organic photovoltaic (OPV) cells using hole-electron separation interlayer for improving conversion efficiency. The novel structure of OPV cell was composed of ITO / PEDOT:PSS / DPASN / P3HT:PC71BM / Liq / Al. OPV device inserting DPASN has 2.28% of energy conversion efficiency higher than 1.99% of conventional OPV cell. DPASN layer effected on blocking electron transfer to anode electrode by their LUMO and HOMO energy levels of DPASN whereas DPASN mixing layer with P3HT:PC71BM restricted holes and electrons separation in the active layer when light absorption occurred due to changing Voc.
Keywords :
electrochemical electrodes; light absorption; organic compounds; solar cells; DPASN mixing layer; HOMO energy levels; LUMO energy levels; OPV cells; active layer; anode electrode; electron transfer; energy conversion efficiency; hole-electron separation interlayer; light absorption; organic photovoltaic cell; Anodes; Artificial intelligence; Charge carrier processes; Energy conversion; Indium tin oxide; Performance evaluation; Polymers; DPASN; hole-electron separation; inter-layer; organic photovoltaic;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4673-0064-3
DOI :
10.1109/PVSC.2012.6318163
