The compositions may be in {HEAD ~ optoelectronic devices} including photodiodes, {TAIL ~ visible spectrum photodetectors}, and photovoltaic devices  
The compositions may be in { HEAD ~ optoelectronic devices } including photodiodes , { TAIL ~ visible spectrum photodetectors } , and photovoltaic devices
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH