Designing CuInSe 2 quantum dot-based high-performance Schottky photodetector: a numerical study

• Published in: Physica scripta Vol. 98; no. 9; p. 95522
• Main Authors: Çadırcı, Musa, Yıldız, Murat
• Format: Journal Article
• Language: English
• Published: 01-09-2023
• ISSN: 0031-8949; 1402-4896
• DOI: 10.1088/1402-4896/aceebe

Sensing in the near-infrared and visible wavelengths is critically essential for a broad range of potential applications. Colloidal quantum dot(CQD) based photodetectors provide key advantages, such as spectral tuneability, straight integration with electronic parts, high sensitivity and low cost. Here, a Schottky photodiode architecture based on CuInSe
2
(CISe) CQDs structure was designed and its photoresponse characteristics were simulated at various absorber layer thicknesses, at different back contact materials, varying light intensities, several defect densities, and different temperatures. A maximum responsivity of about 0.37 A W
−1
was recorded from the proposed device. This work demonstrates that CISe CQDs are potential candidate materials for high-performance Schottky photodetectors operating in the near-infrared and visible electromagnetic spectrum.