Si–Ge–Sn alloys: From growth to applications

S Wirths, D Buca, S Mantl - Progress in crystal growth and characterization …, 2016 - Elsevier
In this review article, we address key material parameters as well as the fabrication and
application of crystalline GeSn binary and SiGeSn ternary alloys. Here, the transition from an …

Group IV direct band gap photonics: methods, challenges, and opportunities

R Geiger, T Zabel, H Sigg - Frontiers in Materials, 2015 - frontiersin.org
The concept of direct band gap group IV materials may offer a paradigm change for Si-
photonics concerning the monolithic implementation of light emitters: the idea is to integrate …

On-chip light sources for silicon photonics

Z Zhou, B Yin, J Michel - Light: Science & Applications, 2015 - nature.com
Serving as the electrical to optical converter, the on-chip silicon light source is an
indispensable component of silicon photonic technologies and has long been pursued …

Reduced lasing thresholds in GeSn microdisk cavities with defect management of the optically active region

A Elbaz, R Arefin, E Sakat, B Wang, E Herth… - ACS …, 2020 - ACS Publications
GeSn alloys are nowadays considered as the most promising materials to build Group IV
laser sources on silicon (Si) in a full complementary metal oxide semiconductor-compatible …

Progress on germanium–tin nanoscale alloys

J Doherty, S Biswas, E Galluccio… - Chemistry of …, 2020 - ACS Publications
Group IV alloys have attracted interest in the drive to create Si compatible, direct band gap
materials for implementation in complementary metal oxide semiconductor (CMOS) and …

Demonstration of a Ge/GeSn/Ge quantum-well microdisk resonator on silicon: enabling high-quality Ge (Sn) materials for micro-and nanophotonics

R Chen, S Gupta, YC Huang, Y Huo, CW Rudy… - Nano …, 2014 - ACS Publications
We theoretically study and experimentally demonstrate a pseudomorphic Ge/Ge0. 92Sn0.
08/Ge quantum-well microdisk resonator on Ge/Si (001) as a route toward a compact GeSn …

Raman spectral shift versus strain and composition in GeSn layers with 6%–15% Sn content

A Gassenq, L Milord, J Aubin, N Pauc, K Guilloy… - Applied Physics …, 2017 - pubs.aip.org
GeSn alloys are the subject of intense research activities as these group IV semiconductors
present direct bandgap behaviors for high Sn contents. Today, the control of strain becomes …

Metal-semiconductor-metal GeSn photodetectors on silicon for short-wave infrared applications

S Ghosh, KC Lin, CH Tsai, H Kumar, Q Chen, L Zhang… - Micromachines, 2020 - mdpi.com
Metal-semiconductor-metal photodetectors (MSM PDs) are effective for monolithic
integration with other optical components of the photonic circuits because of the planar …

Design and modeling of high-performance DBR-based resonant-cavity-enhanced GeSn photodetector for fiber-optic telecommunication networks

S Ghosh, H Kumar, B Mukhopadhyay… - IEEE Sensors …, 2021 - ieeexplore.ieee.org
In this work, we present a novel distributed Bragg reflector (DBR)-based resonant-cavity-
enhanced (RCE) GeSn photodetector on Si substrates to achieve high-performance …

Recent advances in germanium emission

P Boucaud, M El Kurdi, A Ghrib, M Prost… - Photonics …, 2013 - opg.optica.org
The optical properties of germanium can be tailored by combining strain engineering and n-
type do**. In this paper, we review the recent progress that has been reported in the study …