Image Sensors and Photodetectors Based on Low‐Carbon Footprint Solution‐Processed Semiconductors

• Published in: Advanced Sensor Research Vol. 3; no. 11
• Main Authors: Solari, William, Liu, Renjun, Erkızan, Serena N., Osypiw, Alexander R. C., Smowton, Peter M., Hou, Bo
• Format: Journal Article
• Language: English
• Published: Wiley-VCH 01.11.2024
• Subjects: colloidal quantum dot; image sensor; organic semiconductor; patterning; photodetector
• ISSN: 2751-1219; 2751-1219
• DOI: 10.1002/adsr.202400059

This mini‐review explores the evolution of image sensors, essential electronic components increasingly integrated into daily life. Traditional manufacturing methods for image sensors and photodetectors, employing high carbon footprint techniques like thermal evaporation and chemical vapor deposition, are being replaced by environmentally conscious solution processing. Organic and Colloidal Quantum Dot‐based image sensors emerge as promising candidates, aligning with the shift toward solution‐based device integration. This review provides insights into the working principles of photodetectors and image sensors, summarizing relevant materials and fabrication approaches. Additionally, it delves into the detailed exploration of pixelated patterning techniques and their potential applications in the realm of solution‐processed image sensor fabrication. This figure provides a comprehensive overview of fabrication techniques for solution‐processed photodetectors and image sensors, including inkjet printing and electrophoretic deposition. It also evaluates the carbon footprint of these methods compared to industry standards. The assessment focuses on theoretical analyses, highlighting key figures of merit and showcasing examples of devices, with an emphasis on colloidal quantum dots and organic semiconductors.