201. Copper (II) Phthalocyanine based Organic Field-Effect Transistors for UV Photo-detection
- Author
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Vivek Raghuwanshi, Ajay Kumar Mahato, Shree Prakash Tiwari, Ishan Varun, and Deepak Bharti
- Subjects
Organic semiconductor ,chemistry.chemical_compound ,Materials science ,chemistry ,Analytical chemistry ,Phthalocyanine ,Field effect ,chemistry.chemical_element ,Absorption (logic) ,Irradiation ,Copper ,Threshold voltage ,Active layer - Abstract
Effect of UV irradiation $( \lambda _{Peak} \quad =365$ nm) on the electrical performance of the OFETs with CuPc as active layer is demonstrated. The devices have shown stable electrical performance under dark with avg. and max. field effect mobility of $( 1.0 \pm 0.3 ) \times 10 ^{-2}$ and $1.4 \times 10 ^{-2}$ cm $^{2}\, \mathrm {V}^{-1}\, \mathrm {s}^{-1}$ respectively. Under UV illumination there found a shift in threshold voltage and change in ON current along with fast response and recovery time of 0.4 s and 2 s respectively with periodic UV ON-OFF pulses.
- Published
- 2019