Enhanced Photoresponse and Wavelength Selectivity by SILAR-Coated Quantum Dots on Two-Dimensional WSe<sub>2</sub> Crystals
Soheil Ghods, Ali Esfandiar, Azam Iraji zad, Sajjad Vardast
Abstract
heterostructures, the hybrid devices presented an efficient photodetector with a photoresponsivity of 48.72 A/W, a quantum efficiency of 71%, and a response time of 2.5-3.5 ms. Considering the energy band bending structure and numerical simulation data, the electric field distribution at interfaces and photocarrier generation/recombination rates have been studied. The introduced fabrication strategy is fully compatible with the semiconductor industry process, and it can be used as a novel method for fabricating wavelength-tunable and high-performance photodetectors toward innovative optoelectronic applications.
Topics & Concepts
PhotodetectorHeterojunctionMaterials scienceOptoelectronicsQuantum dotPhotonicsQuantum efficiencySemiconductorFabricationNanotechnologyAlternative medicineMedicinePathology2D Materials and ApplicationsQuantum Dots Synthesis And PropertiesNanowire Synthesis and Applications