PTCDA-Based Thin Film Light Sensors from Thermal Evaporation

Light sensing technology has its applications in consumer gadgets and industrial automation. Organic semiconductors offer a solution to limitations of conventional metallic semiconductors. This research explores the potential of 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) as a core material for fabricating highly effective and affordable light sensors through thermal evaporation. Positive results with red, green, and blue visible light show varying response times in light sensors. Moisture content is the most likely factor for this variability.