Title :
Quantum dot and star like lead sulfide for infrared radiation detection
Author :
Dolatyari, Mahboubeh ; Miri, Somayeh ; Shekari, Hemayat ; Bakhtiari, Akbar ; Rostami, Ali
Author_Institution :
Sch. of Eng. Emerging Technol., Univ. of Tabriz, Tabriz, Iran
Abstract :
Photosensors based on quantum dot and star like PbS has been successfully fabricated. Lead sulfides were synthesized by sonochemical and hydrothermal methods and coated on Cu interdigitated electrodes. The current-voltage (I-V) characteristics show linear and exponential behavior for quantum dots and star like PbS respectively. The photosensitivity is high for fabricated detectors by star like PbS. However, fast response time was observed for the detector fabricated by quantum dots.
Keywords :
IV-VI semiconductors; copper; infrared detectors; lead compounds; photodetectors; Cu; PbS; current-voltage characteristics; exponential behavior; hydrothermal method; infrared radiation detection; interdigitated electrode; linear behavior; photosensitivity; photosensors; quantum dot; sonochemical method; star like lead sulfide; Abstracts; Microscopy; Microwave amplifiers; Microwave imaging; Hydrothermal; MSM; PbS; Photoconductive detector; Star like; quantum dot; ultrasonic;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
