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  • John Kouvetakis
2017

Single-defect hexapole mode GeSn photonic crystal laser: Fabrication and simulation

Bao, S., Qiu, H., Kim, Y., Lin, Y., Ryu, H. Y., Ryu, M. Y., Yeo, Y. K., Kouvetakis, J., Fitzgerald, E., Wang, H., Nam, D. & Tan, C. S., Oct 25 2017, 2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 2017-January. p. 1-2 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2016

Toward GeSn lasers: Light amplification and stimulated emission in GeSn waveguides at room temperature

Mathews, J., Li, Z., Zhao, Y., Gallagher, J. D., Agha, I., Menendez, J. & Kouvetakis, J., 2016, SiGe, Ge, and Related Materials: Materials, Processing, and Devices 7. 8 ed. Electrochemical Society Inc., Vol. 75. p. 163-176 14 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations
2020

Radiation-induced electron and hole traps in Ge1 -x Sn x (x = 0-0.094)

Hogsed, M., Choe, K., Miguel, N., Wang, B. & Kouvetakis, J., Feb 14 2020, In : Journal of Applied Physics. 127, 6, 065708.

Research output: Contribution to journalArticle

Open Access
2017

Synthesis and Structural and Optical Properties of Ga(As1-xPx)Ge3 and (GaP)yGe5-2y Semiconductors Using Interface-Engineered Group IV Platforms

Wallace, P. M., Sims, P. E., Xu, C., Poweleit, C. D., Kouvetakis, J. & Menendez, J., Oct 11 2017, In : ACS Applied Materials and Interfaces. 9, 40, p. 35105-35113 9 p.

Research output: Contribution to journalArticle

Molecular epitaxy of pseudomorphic Ge1-ySny (y = 0.06-0.17) structures and devices on Si/Ge at ultra-low temperatures via reactions of Ge4H10 and SnD4

Wallace, P. M., Senaratne, C. L., Xu, C., Sims, P. E., Kouvetakis, J. & Menendez, J., Jan 9 2017, In : Semiconductor Science and Technology. 32, 2, 025003.

Research output: Contribution to journalArticle

6 Scopus citations
2020
2017

Temperature dependence of the interband critical points of bulk Ge and strained Ge on Si

Fernando, N. S., Nunley, T. N., Ghosh, A., Nelson, C. M., Cooke, J. A., Medina, A. A., Zollner, S., Xu, C., Menendez, J. & Kouvetakis, J., Nov 1 2017, In : Applied Surface Science. 421, p. 905-912 8 p.

Research output: Contribution to journalArticle

7 Scopus citations
2018

Observation of Amplified Spontaneous Emission in GeSn Waveguides at Room Temperature

Mathews, J., Li, Z., Zhao, Y., Gallagher, J. D., Lombardo, D., Agha, I., Kouvetakis, J. & Menendez, J., Sep 5 2018, IEEE Photonics Society Summer Topicals Meeting Series, SUM 2018. Institute of Electrical and Electronics Engineers Inc., p. 35-36 2 p. 8456690

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2017

Synthesis and optical properties of (GaAs)yGe5-2 y alloys assembled from molecular building blocks

Sims, P. E., Wallace, P. M., Xu, C., Poweleit, C. D., Claflin, B., Kouvetakis, J. & Menendez, J., Sep 18 2017, In : Applied Physics Letters. 111, 12, 122101.

Research output: Contribution to journalArticle

2 Scopus citations
2016
21 Scopus citations
2017

Observation of Phase-Filling Singularities in the Optical Dielectric Function of Highly Doped n -Type Ge

Xu, C., Fernando, N. S., Zollner, S., Kouvetakis, J. & Menendez, J., Jun 27 2017, In : Physical Review Letters. 118, 26, 267402.

Research output: Contribution to journalArticle

5 Scopus citations
2018

Investigation of hydrogen inductively coupled plasma treatment effect for Ge 0.938 Sn 0.062 /Ge/Si film using photoreflectance spectroscopy

Jo, H. J., Kim, J. S., Ryu, M. Y., Yeo, Y. K. & Kouvetakis, J., Jan 1 2018, In : Thin Solid Films. 645, p. 345-350 6 p.

Research output: Contribution to journalArticle

1 Scopus citations
2016

Observation of temperature-dependent heavy- and light-hole split direct bandgap and tensile strain from Ge0.985Sn0.015 using photoreflectance spectroscopy

Jo, H. J., Kim, G. H., Kim, J. S., Ryu, M. Y., Yeo, Y. K., Harris, T. R. & Kouvetakis, J., Jan 2016, In : Current Applied Physics. 16, 1, p. 83-87 5 p.

Research output: Contribution to journalArticle

5 Scopus citations

Direct bandgap cross-over point of Ge1-ySny grown on Si estimated through temperature-dependent photoluminescence studies

Harris, T. R., Ryu, M. Y., Yeo, Y. K., Wang, B., Senaratne, C. L. & Kouvetakis, J., Aug 28 2016, In : Journal of Applied Physics. 120, 8, 085706.

Research output: Contribution to journalArticle

7 Scopus citations
2017
15 Scopus citations
2 Scopus citations
2016

Direct gap Ge1-ySny alloys: Fabrication and design of mid-IR photodiodes

Senaratne, C. L., Wallace, P. M., Gallagher, J. D., Sims, P. E., Kouvetakis, J. & Menendez, J., Jul 14 2016, In : Journal of Applied Physics. 120, 2, 025701.

Research output: Contribution to journalArticle

20 Scopus citations

Ultralow Resistivity Ge: Sb heterostructures on Si Using Hydride Epitaxy of Deuterated Stibine and Trigermane

Xu, C., Senaratne, C. L., Sims, P., Kouvetakis, J. & Menendez, J., Sep 14 2016, In : ACS Applied Materials and Interfaces. 8, 36, p. 23810-23819 10 p.

Research output: Contribution to journalArticle

8 Scopus citations
2018

Fabrication of Ge:Ga Hyperdoped Materials and Devices Using CMOS-Compatible Ga and Ge Hydride Chemistries

Xu, C., Wallace, P. M., Ringwala, D. A., Menendez, J. & Kouvetakis, J., Oct 31 2018, In : ACS Applied Materials and Interfaces. 10, 43, p. 37198-37206 9 p.

Research output: Contribution to journalArticle

2016

Optical properties of Ge-rich G e1-x S IX alloys: Compositional dependence of the lowest direct and indirect gaps

Xu, C., Gallagher, J. D., Senaratne, C. L., Menendez, J. & Kouvetakis, J., Mar 9 2016, In : Physical Review B - Condensed Matter and Materials Physics. 93, 12, 125206.

Research output: Contribution to journalArticle

7 Scopus citations
2018

Electrical characterization and deep-level transient spectroscopy of Ge0.873Si0.104Sn0.023 photodiode grown on Ge platform by ultra-high vacuum chemical vapor deposition

Wang, B., Fang, Z. Q., Claflin, B., Look, D., Kouvetakis, J. & Yeo, Y. K., May 31 2018, In : Thin Solid Films. 654, p. 77-84 8 p.

Research output: Contribution to journalArticle

3 Scopus citations