Synthesis of Highly Soluble NIR-Absorbing Conjugated Polymers for Semi-Transparent Organic Light Dependent Resistors
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초록
내용
Light dependent resistor (LDR) has been extensively used in various applications such as smart displays, fire alarm systems, door sensors, etc. So far, most LDRs have been fabricated with inorganic materials which are mostly rigid and require high processing temperatures. To achieve flexible LDRs that can be processed at low temperatures, the inorganic materials need to be replaced with organic materials. In this regard, conjugated polymers can be considered good candidate when it comes to their high toughness in general and excellent forming properties. In this work, new near infrared (NIR) light-absorbing conjugated polymers with comonomers containing long alkyl chains have been synthesized and applied as a core active (resistive) layer for organic LDRs (OLDRs) with transparent characteristics. The design concept and performance of semi-transparent NIR-OLDRs will be discussed in detail together with further requirements for light detection and ranging (LiDAR) applications.