Semitransparent Organic Solar Cells with Polyethylenimine Ethoxylated Interfacial Layer Using Lamination Process

Keisuke SHODA  Masahiro MORIMOTO  Shigeki NAKA  Hiroyuki OKADA  

IEICE TRANSACTIONS on Electronics   Vol.E102-C   No.2   pp.196-198
Publication Date: 2019/02/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.2018OMS0016
Type of Manuscript: BRIEF PAPER
organic solar cell,  bulk hetero structure,  interfacial layer,  lamination process,  semitransparent,  

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Semitransparent organic solar cells were fabricated using lamination process. The devices were realized by using two independent substrates with transparent indium-tin-oxide electrode. One substrate was coated with poly(ethylenedioxy-thiophene)/poly(styrenesulfonate) layer and active layer of poly(3-hexylthiophene-2,5-diyl) (P3HT) and (6,6)-phenyl-C61 butyric acid methyl ester mixture. Another substrate was coated with ultra-thin polyethylenimine ethoxylated. The two substrates were laminated using hot press system. The device exhibited semitransparency and showed typical photovoltaic characteristics with open voltage of 0.59 V and short circuit current of 2.9 mA/cm2.