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physics.app-ph2026

Study of GeSn Selective Area Growth with Demonstration of SWIR Light Detection

Hryhorii Stanchu, Quang Minh Thai, Rajesh Kumar +16

As germanium-tin (GeSn) epitaxial growth quality continuously improves, the search for an efficient integration strategy of GeSn optoelectronics devices into complementary metal-ox…

physics.app-ph2026

Germanium-tin (GeSn) avalanche photodiode with up to 2.7 micro cutoff wavelength for extended SWIR detection

Quang Minh Thai, Rajesh Kumar, Justin Rudie +11

Separate absorption charge multiplication germanium tin on silicon avalanche photodiode offers a viable solution to achieve CMOS compatible, high sensitivity detection technology i…

physics.app-ph2025

Study of electronic band alignment in SiGeSn/GeSn quantum well via internal photoemission effect

Justin Rudie, Huong Tran, Yang Zhang +10

SiGeSn-based optoelectronic devices, which operate across a broad infrared wavelength range, have attracted significant attention, particularly heterostructures utilizing quantum w…

physics.app-ph2025

Ge0.95Sn0.05 on Si avalanche photodiode with Spectral Response Cutoff at 2.14 micrometer

Justin Rudie, Xiaoxin Wang, Rajesh Kumar +9

GeSn-based avalanche photodiode (APD) operating in shortwave infrared (SWIR) wavelength was demonstrated in this work. A separate absorption and charge multiplication (SACM) struct…

physics.app-ph2025

Direct Bandgap Photoluminescence of GeSn grown on Si(100) substrate by Molecular Beam Epitaxy Growth

Diandian Zhang, Nirosh M. Eldose, Dinesh Baral +9

Group IV alloys of GeSn have gained significant attention for electronic and optoelectronic applications on a Si platform due to their compatibility with existing CMOS technology,…