activity
20242026
most citedDirect Bandgap Photoluminescence of GeSn grown on Si(100) substrate by Molecular Beam Epitaxy Growth

1 citations · 1 across the 8 of their papers we have counts for

collaborators

8 papers

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.ins-det2026

Systematic study of high performance GeSn photodiodes with thick absorber for SWIR and extended SWIR detection

Quang Minh Thai, Rajesh Kumar, Abdulla Said Ali +13

Germanium-tin (GeSn) photodiodes potentiate a viable solution to integrate SWIR and extended SWIR detection technology into CMOS processing line. However, challenges in the growth…

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★ 1 cited

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,…

physics.optics2024

Grafted AlGaAs/GeSn Optical Pumping Laser Operating up to 130 K

Jie Zhou, Daniel Vincent, Sudip Acharya +16

Group IV GeSn double-heterostructure (DHS) lasers offer unique advantages of a direct bandgap and CMOS compatibility. However, further improvements in laser performance have been b…

physics.app-ph2024

Characterization of AlGaAs/GeSn heterojunction band alignment via X-ray photoelectron spectroscopy

Yang Liu, Jiarui Gong, Sudip Acharya +12

GeSn-based SWIR lasers featuring imaging, sensing, and communications has gained dynamic development recently. However, the existing SiGeSn/GeSn double heterostructure lacks adequa…

physics.app-ph2024

AlGaAs/GeSn p-i-n diode interfaced with ultrathin AlO

Yang Liu, Yiran Li, Sudip Acharya +9

This study presents the fabrication and characterizations of an AlGaAs/GeSn/GeSn p-i-n double heterostructure (DHS) diode following the grafting a…

physics.optics2024

Electrically Injected mid-infrared GeSn laser on Si operating at 140 K

Sudip Acharya, Hryhorii Stanchu, Rajesh Kumar +6

Owing to its true direct bandgap and tunable bandgap energies,GeSn alloys are increasingly attractive as gain media for mid-IR lasers that can be monolithically integrated on Si. D…