PV EFFECT OF FULLERENE/POLY(3-HEXYLTHIOPHENE) BLEND SENSITIZED BY PHTHALOCYANINE HAVING INFRARED ABSORPTION CT BAND
An attempt was made to extend the photosensitivity spectral range of fullerene/poly(3-hexylthiophene) blend to NIR region by adding extra electron donor – hydroxygallium phthalocyanine (GaOHPc) with a strong and wide intermolecular charge transfer (CT) band around 830 nm. Multilayer cells of ITO/PEDOT: PSS/6 GaOHPc/P3HT: C61(CO2Et)2 have been prepared by spin coating with vacuum evaporated Al or In top electrodes. Significant photosensitivity of the cells was in 370-900 nm spectral range. However charge carrier photogeneration efficiency was 3 times higher for illumination in P3HT absorption band as compared with the GaOHPc CT band at 830 nm. But when GaOHPc was mixed in the blend forming P3HT:C61(CO2Et)2:GaOHPc active layer its CT band shifted to infrared part at 875 nm. At the same time the charge carrier photogeneration efficiency for illumination in GaOHPc CT band increased significantly, exceeding its value for illumination in P3HT absorption band.
I.Kaulachs G.Kashkarova V.Kampars V.Parra I.Muzikante L.Gerca G.Shlihta M.Plotniece M.Roze J.Kalnachs A.Murashov P.Shipkovs
Institute of Physical Energetics 21 Aizkraukles Str., Riga LV-1006, LATVIA Riga Technical University, 14 Azenes Str., Riga LV-1048, LATVIA ITODYS-CNRS, Université Paris Diterot-Paris 7, France Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga LV-1063,
国际会议
2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)
北京
英文
2007-09-18（万方平台首次上网日期，不代表论文的发表时间）