SwePub - search: WFRF:(Giri Soumen)

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1.	Das, Sourav, et al. (author) Hydrothermally grown SnS2/Si nanowire core-shell heterostructure photodetector with excellent optoelectronic performances 2023 In: Applied Surface Science. - : Elsevier. - 0169-4332 .- 1873-5584. ; 624 Journal article (peer-reviewed)abstract Core-shell nanowire heterostructure is a new architecture for photodetector application with enlarged active surface area enhancing light absorption and photodetector performance. As an emanating coating material, SnS2 has a growing interest in next-generation optoelectronic materials. Here, we reported the enhanced optoelectronic performance of the hydrothermally grown SnS2 and Si nanowire (SiNWs) core-shell heterostructure. Hydrothermally grown SnS2 on Si nanowire creates a uniform coating over the entire surface of nanowires which enhances the heterostructure's effective junction area and improves optoelectronic performance over the broad spectral range (300 - 1100 nm). Specially, under 340 nm illumination, the core-shell photodetector exhibits large responsivity (-383 A/W) and extremely high external quantum efficiency (-2 x 105 %) at very low optical power (-20 nW/mm2). This SnS2/SiNWs core-shell heterostructure with significantly improved optoelectronic performance will be favourable for the development of photodetector with an ability to work with extremely high efficiency.

Das, Sourav, et al. (author)
Hydrothermally grown SnS2/Si nanowire core-shell heterostructure photodetector with excellent optoelectronic performances
2023
In: Applied Surface Science. - : Elsevier. - 0169-4332 .- 1873-5584. ; 624
Journal article (peer-reviewed)abstract
- Core-shell nanowire heterostructure is a new architecture for photodetector application with enlarged active surface area enhancing light absorption and photodetector performance. As an emanating coating material, SnS2 has a growing interest in next-generation optoelectronic materials. Here, we reported the enhanced optoelectronic performance of the hydrothermally grown SnS2 and Si nanowire (SiNWs) core-shell heterostructure. Hydrothermally grown SnS2 on Si nanowire creates a uniform coating over the entire surface of nanowires which enhances the heterostructure's effective junction area and improves optoelectronic performance over the broad spectral range (300 - 1100 nm). Specially, under 340 nm illumination, the core-shell photodetector exhibits large responsivity (-383 A/W) and extremely high external quantum efficiency (-2 x 105 %) at very low optical power (-20 nW/mm2). This SnS2/SiNWs core-shell heterostructure with significantly improved optoelectronic performance will be favourable for the development of photodetector with an ability to work with extremely high efficiency.

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