Fig. 3From: Lasing and Transport Properties of Poly[(9,9-dioctyl-2,7-divinylenefluorenylene)-alt-co-(2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene)] (POFP) for the Application of Diode-Pumped Organic Solid LasersThe J–V characteristics of a hole-only devices and b electron-only devices. The structures of the devices are shown in the insetsBack to article page