Abstract
In this work, self-powered photodetectors were fabricated by a simple, cost-effective method using cadmium sulfide (CdS) as photoactive layer and carbon as a hole transport layer. A study on the performance of photodetectors with varied thickness of CdS layers deposited on an FTO coated glass substrate via the Successive Ionic Layer Adsorption and Reaction (SILAR) method is studied in detail. X-Ray diffraction (XRD) data confirms the formation of the CdS layer. Field emission scanning electron microscopy (FESEM) and elemental mapping shows the spherical clustered formation with a uniform distribution of CdS nanoparticles. The band gap of the CdS layers in the range of 2.25 to 2.38 eV is closer to the desired band gap of visible light photodetector. Though solution-processed photodetectors show a very weak photoresponse, the fabricated device shows a responsivity of 0.11✗10−3 A/W and a rapid rise and fall time as fast as 0.16 s and 0.12 s.
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.
