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Optimization of PEDOT:PSS layers for hole transporting layers of organic photodetectors
The study focuses on the optimization of PEDOT:PSS ink for the preparation of a hole transport layer. The ink was developed for the spiral bar coating technique and for subsequent organic photodetector preparation. In this study, the effect of various variables such as secondary dopant, surfactant, PEDOT:PSS complex ratio, and ink composition on selected characteristics such as conductivity, work function, charge carrier mobility, etc. is demonstrated.