The present invention relates to a photosensitive organic semiconductor composition comprising at least one organic p type semiconductor pigment with {HEAD ~ at least one p type conducting polymer}, wherein the ionization potential of said {TAIL ~ at least one organic p type semiconductor pigment} and the ionization potential of said at least one p type conducting polymer are nominally equivalent 
The present invention relates to a photosensitive organic semiconductor composition comprising at least one organic p type semiconductor pigment with { HEAD ~ at least one p type conducting polymer } , wherein the ionization potential of said { TAIL ~ at least one organic p type semiconductor pigment } and the ionization potential of said at least one p type conducting polymer are nominally equivalent
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