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The image sensor is a key recording element in cameras, CCTV, and self-driving cars. Most image sensors that have been commercialized thus far are silicon based, and color filters are essential to accurately identify the color of light. However, color filters are expensive and have the fatal drawback if increasing image sensor thickness.
The research team developed thin image sensors based on organic semiconductors that can compensate for the shortcomings of silicon image sensors. In particular, their research results have been garnering much attention because they enable images to be implemented clearly without using color filters by increasing the color selection of organic semiconductors.
Research - Team - Method - Defects - Transparent
The research team developed a method to fill chemical defects in the transparent electrode surface made of zinc oxide with sulfur atoms. Through this, Schottky junction property between organic semiconductor and transparent electrode have been maximized, and thus increased each R/G/B color selection options.
In addition, as the surface defects...
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