Momentum (k)-Space Charge Separation Mid-Wave Infrared Photodetectors Using SiGeSn Alloys

Tyler T. McCarthy; Zheng Ju; Shui Qing Yu; Yong Hang Zhang

doi:10.1109/SUM48717.2021.9505745

Momentum (k)-Space Charge Separation Mid-Wave Infrared Photodetectors Using SiGeSn Alloys

Tyler T. McCarthy, Zheng Ju, Shui Qing Yu, Yong Hang Zhang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We report a band-structure engineering approach with k-space charge-separation feature by tailoring the direct-energy valley to be several kBT higher than the indirect, enabling large absorption coefficients while maintaining long-carrier lifetimes. Modeling shows SiGeSn alloys with constant 3kBT Γ- and L-valley separation cover MWIR range.

Original language	English (US)
Title of host publication	2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781665416009
DOIs	https://doi.org/10.1109/SUM48717.2021.9505745
State	Published - 2021
Event	2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Virtual, Online, Mexico Duration: Jul 19 2021 → Jul 21 2021

Publication series

Name	LEOS Summer Topical Meeting
Volume	2021-July
ISSN (Print)	1099-4742

Conference

Conference	2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021
Country/Territory	Mexico
City	Virtual, Online
Period	7/19/21 → 7/21/21

Keywords

Band-structure engineering
Charge separation
MWIR
Photodetector
SiGeSn

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Access to Document

10.1109/SUM48717.2021.9505745

Cite this

McCarthy, T. T., Ju, Z., Yu, S. Q., & Zhang, Y. H. (2021). Momentum (k)-Space Charge Separation Mid-Wave Infrared Photodetectors Using SiGeSn Alloys. In 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings (LEOS Summer Topical Meeting; Vol. 2021-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SUM48717.2021.9505745

Momentum (k)-Space Charge Separation Mid-Wave Infrared Photodetectors Using SiGeSn Alloys. / McCarthy, Tyler T.; Ju, Zheng; Yu, Shui Qing et al.
2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. (LEOS Summer Topical Meeting; Vol. 2021-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

McCarthy, TT, Ju, Z, Yu, SQ & Zhang, YH 2021, Momentum (k)-Space Charge Separation Mid-Wave Infrared Photodetectors Using SiGeSn Alloys. in 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings. LEOS Summer Topical Meeting, vol. 2021-July, Institute of Electrical and Electronics Engineers Inc., 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021, Virtual, Online, Mexico, 7/19/21. https://doi.org/10.1109/SUM48717.2021.9505745

@inproceedings{0bbf6139385447acbf024d3aae46dcd2,

title = "Momentum (k)-Space Charge Separation Mid-Wave Infrared Photodetectors Using SiGeSn Alloys",

abstract = "We report a band-structure engineering approach with k-space charge-separation feature by tailoring the direct-energy valley to be several kBT higher than the indirect, enabling large absorption coefficients while maintaining long-carrier lifetimes. Modeling shows SiGeSn alloys with constant 3kBT Γ- and L-valley separation cover MWIR range.",

keywords = "Band-structure engineering, Charge separation, MWIR, Photodetector, SiGeSn",

author = "McCarthy, {Tyler T.} and Zheng Ju and Yu, {Shui Qing} and Zhang, {Yong Hang}",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 ; Conference date: 19-07-2021 Through 21-07-2021",

year = "2021",

doi = "10.1109/SUM48717.2021.9505745",

language = "English (US)",

series = "LEOS Summer Topical Meeting",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings",

}

TY - GEN

T1 - Momentum (k)-Space Charge Separation Mid-Wave Infrared Photodetectors Using SiGeSn Alloys

AU - McCarthy, Tyler T.

AU - Ju, Zheng

AU - Yu, Shui Qing

AU - Zhang, Yong Hang

PY - 2021

Y1 - 2021

N2 - We report a band-structure engineering approach with k-space charge-separation feature by tailoring the direct-energy valley to be several kBT higher than the indirect, enabling large absorption coefficients while maintaining long-carrier lifetimes. Modeling shows SiGeSn alloys with constant 3kBT Γ- and L-valley separation cover MWIR range.

AB - We report a band-structure engineering approach with k-space charge-separation feature by tailoring the direct-energy valley to be several kBT higher than the indirect, enabling large absorption coefficients while maintaining long-carrier lifetimes. Modeling shows SiGeSn alloys with constant 3kBT Γ- and L-valley separation cover MWIR range.

KW - Band-structure engineering

KW - Charge separation

KW - MWIR

KW - Photodetector

KW - SiGeSn

UR - http://www.scopus.com/inward/record.url?scp=85124403620&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85124403620&partnerID=8YFLogxK

U2 - 10.1109/SUM48717.2021.9505745

DO - 10.1109/SUM48717.2021.9505745

M3 - Conference contribution

AN - SCOPUS:85124403620

T3 - LEOS Summer Topical Meeting

BT - 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2021 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2021

Y2 - 19 July 2021 through 21 July 2021

ER -

Momentum (k)-Space Charge Separation Mid-Wave Infrared Photodetectors Using SiGeSn Alloys

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this