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KoichiRikitake,ShyamS.Pandey,WataruTakashima,KeiichiKaneto 한국물리학회 2003 Current Applied Physics Vol.3 No.2, 3
Currentvoltage (IV) characteristics of regioregular (headtail) poly(3-hexylthiophene), HT-PHT lms in the sandwich cellstructure of Al/HT-PHT/Au have been studied as a function of temperature. The cells showed typical rectication characteristics withthe ratio of more than 103dependence ofIV characteristics at the forward biases are discussed with the bulk property of the HT-PHT. The reversed current anditscharacteristicsare discussed takingthe thermionicemissionand iusion models athe junctionsofAl/HT-PHTintoconsideration.. 2002 Elsevier Science B.V. All rights reserved.
Photovoltaic properties in poly(3-alkylthiophene) based heterojunction cells
ShyamS.Pandey,KoichiRikitake,WataruTakashima,KeiichiKaneto 한국물리학회 2003 Current Applied Physics Vol.3 No.2, 3
Photocarrier generation and photovoltaic eect have been systematically studied in single layer ITO/poly(3-alkylthioph-ene)(P3AT)/Al Schottky and double layer ITO/P3AT/perylene/metal heterojunction cells. It has been found that Ohmic contactformation takes place between ITO (Au) with P3AT and Au (Ag, Al) with perylene derivatives. The double layer organic het-erojunction device shows strong rectifying behavior with the rectication ratio of 1000 (at. 2 V) and the ideality factor of 2.15. Themaximum incident photon to electron conversion eciency (IPCE) of 0.08% was found for the devices fabricated using regioregularjunction cell IPCE was more than an order of magnitude higher than that of the single layer junction of regioregular P3BT/Al.. 2002 Elsevier Science B.V. All rights reserved.