Abstract
The temperature effect on the electron transport in organic semiconducting molecule tris(8-hydroxyquinoline) aluminium (Alq3) diodes has been investigated. The current–voltage (J–V) characteristics have been measured in single layer electron only devices with Alq3 sandwitched between two aluminium electrodes. J–V characteristics have been studied at different temperatures from 295 to 83 K. At high-applied bias and temperatures from 295 to 219 K, our experimental data fits well to the theory where charge transport is determined by exponential traps and J∝Vl+1, where l=Tc/T, Tc is the characteristic temperature of traps distribution. A characteristic trap depth (Et) of 0.19 eV, has been obtained by a temperature dependent analysis of J–V characteristics. However it was not possible to fit the low temperature data below 219 K, with exponential trap theory, without some unacceptable changes. A numerical analysis of mobility model, in which the mobility has field and temperature dependence, has been found in a good agreement to the data below 219 K.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
