There is {HEAD ~ a continuing need} for photosensitive organic semiconductor compositions that may be used to produce {TAIL ~ various optoelectronic devices} including photodiodes, photodetectors, and photovoltaic devices  
There is { HEAD ~ a continuing need } for photosensitive organic semiconductor compositions that may be used to produce { TAIL ~ various optoelectronic devices } including photodiodes , photodetectors , and photovoltaic devices
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