Enhancing Photodetection Performance and Thermal Tolerance of CdS Thin Films through Cobalt (Co) Doping
Devidas Halge,
Vijaykiran Narwade,
Pooja Khanzode
et al.
Abstract:A visible light photodetector is developed using cobalt (Co)‐doped cadmium sulfide (CdS) thin films that exhibits outstanding characteristics with a photocurrent of 284 μA, responsivity of 13.2 A W−1, an extraordinary external quantum efficiency (EQE) of 4550%, exceptional sensitivity (2.84 × 106%), and a rapid response time of 0.6 ms. These remarkable properties are most pronounced in 1 wt% Co‐doped CdS device and decrease with higher Co doping concentrations. This enhanced performance is attributed to the in… Show more
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