Effect of fluorinated-Benzene Ratio on Quinoxaline-based Polymers for Organic Electronics
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Photodetectors are usually used to convert the light photons where in range of limited human vision and/or which has very small intensity, into perceivable electrical signals. Nowadays, photodetectors have attracted a great deal of research attentions because of their potential for various applications such as biomedical sensing, machine vision, and artificial eyes. Recently, high-efficiency quinoxaline-based polymers have been developed for the organic solar cells. However, they are yet to be explored for the organic photodetectors. Thus modified structures based on TQ1 as most basic structure of quinoxaline moieties can be used for a photodetector to obtain electrical signal from very low intensity of light. These fluoro-benzene units are introduced into the main-chain of the TQ1 polymer by ratio to control their planarity and solubility, and also to check the properties of photocurrent formation and dark current suppression.