"Doping" is manipulation of the crystals of these, a class of solids found in transistors
... 
solar cells, sensors and transistors, meeting the exacting demands of... [DOC] [TLE] Semiconductors for organic transistors - ScienceDirect [PAR] Feb 16, 2007 ... At present, a number of organic semiconductor classes have been .... A recent 
review summarizes the crystal engineering and OFET .... 5), which may adversely 
affect solid-state packing, and much larger mobilities have been found for .... 
usually causes polymer doping degradation of the transistor Ion:Ioff.