Abstract
Infrared detection is a key point in optoelectronic systems and thus has attracted considerable attention in recent years. In this paper, a novel, heavy metal-free, and low-cost near-infrared photoconductor based on Ag2S nanocrystals (NCs) was realized for the first time. Ag2S NCs were synthesized by a facile chemical synthesis method at room temperature and were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), and optical absorption. The photoconductor was fabricated by drop-casting Ag2S NCs on the interdigitated electrodes which were designed on a printed circuit board. The fabricated photodetector was able to work with a very low bias voltage of 0.05 V. Device performance was evaluated in terms of photosensitivity, responsivity, and detectivity under 750, 850, and 940 nm wavelengths illuminations. The fabricated photodetector exhibited a high detectivity of 2.7×1010 (more than 109 Jones) under 750 nm wavelength illumination at room temperature.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
