Eo, Yong Seok Rhee, Hee Woo Chin, Byung Doo Yu, Jae-Woong 2024-01-20T21:00:26Z 2024-01-20T21:00:26Z 2021-09-05 2009-09 0379-6779 https://pubs.kist.re.kr/handle/201004/132197 Influences of metal electrode on the performance of organic photovoltaic device were studied. An appropriate energy level was set between HOMO of donor material and LUMO of acceptor material used to fabricate device and metals with workfunction above, below and within this appropriate range were selectively chosen to form electron collecting electrode. Metals which can form an Ohmic contact showed enhanced power conversion efficiency, while metals forming a Schottky type contact showed poor power conversion efficiency. Series resistances showed characteristic values for each range. Open circuit voltages were in the same order with power conversion efficiency, showing a dependence on injection barrier at negative electrode contact. The power conversion efficiency of low workfunction metal electrode (i.e. calcium electrode device)was higher than that of gold electrode where the electron extraction is spontaneous process. (C) 2009 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA OPEN-CIRCUIT VOLTAGE PLASTIC SOLAR-CELLS WORK FUNCTION ELECTRODES ORIGIN Influence of metal cathode for organic photovoltaic device performance Article 10.1016/j.synthmet.2009.05.036 1 SYNTHETIC METALS, v.159, no.17-18, pp.1910 - 1913 SYNTHETIC METALS 159 17-18 1910 1913 scie scopus 000270641600040 2-s2.0-69449102885 Materials Science, Multidisciplinary Physics, Condensed Matter Polymer Science Materials Science Physics Polymer Science Article OPEN-CIRCUIT VOLTAGE PLASTIC SOLAR-CELLS WORK FUNCTION ELECTRODES ORIGIN Organic photovoltaic Metal electrode Charge extraction Series resistance Open circuit voltage