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(Color online) (a) Molecular structural formula of chloroaluminum phthalocyanine (ClAlPc). (b) Atomic force micrograph of a thick film of ClAlPc grown at on an indium tin oxide substrate. Corresponding root mean square surface roughness was . The vertical axis is on a scale of /division and the horizontal axes are /division.
Normalized absorption spectra for chloroaluminum phthalocyanine (ClAlPc) and copper phthalocyanine (CuPc). ClAlPc has a peak at a wavelength of , redshifted from that of CuPc by approximately . External quantum efficiency is also shown for a planar double heterojunction organic photovoltaic cell with the structure indium tin oxide/ bathocuproine/Ag in which the ClAlPc was grown at a rate of .
(a) Current density vs voltage in the dark and under various simulated AM 1.5G illumination intensities for the structure indium tin oxide/ chloroaluminum phthalocyanine bathocuproine/Ag where the ClAlPc was grown at a rate of . (b) Power conversion efficiency , open-circuit voltage , and fill factor FF vs incident optical power density for the same device as in (a).
Organic photovoltaic cell results.
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