Energy level alignments and photocurrents in crystalline Si/organic semiconductor heterojunction diodes
作者： I. H. Campbell , B. K. Crone
DOI: 10.1063/1.3264945
关键词:
摘要: We investigate electronic energy level alignment and photocurrent in crystalline silicon/organic/semitransparent metal heterojunction diodes. Optically thin films of poly[2-methoxy,5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV), poly(9,9-dioctylfluorene) [PFO], pentacene (Pc), C60 were deposited on n p type Si wafers diode structures formed by depositing either a Au anode or Al cathode onto the organic film. The was assessed using built-in potential capacitance-voltage measurements. In all cases, results are consistent with near ideal vacuum between inorganic semiconductor. current-voltage (I-V) characteristics structure interface. For n-Si/MEH-PPV/Au, I-V curves quantitatively described an device model. measurements diodes illuminated through semitransparent contact optical wavelengths...
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