Impact of the Structural Parameters on the Photoresponse of Terahertz Blocked-Impurity-Band Detectors with Planar Structure

Jiaqi Zhu; He Zhu; Hanlun Xu; Kai Li; Zhenglai Wang; Nasir Ali; Huiyong Deng; Ning Dai; Huizhen Wu

doi:10.1109/TTHZ.2020.2968238

Impact of the Structural Parameters on the Photoresponse of Terahertz Blocked-Impurity-Band Detectors with Planar Structure

Jiaqi Zhu, He Zhu, Hanlun Xu, Kai Li, Zhenglai Wang, Nasir Ali, Huiyong Deng, Ning Dai, Huizhen Wu

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

We fabricate germanium-based blocked-impurity-band (BIB) terahertz detectors with the same planar structure but different structural parameters. The photoresponse waveband range is about 40-130 μm. The best detectivity of these detectors reaches as high as 1.3 × 1013 Jones at 2.6 V and 4 K. The impact of the structural parameters, including the length of the absorbing layer and blocking layer (BL) on the performance of detectors, is investigated. It is concluded that there is an optimum BL length, enabling the fabricated BIB detectors to achieve the highest sensitivity. This work highlights the importance of the optimized structural parameters and their influence on the performance of the detectors.

Original language	English
Article number	8966380
Pages (from-to)	358-362
Number of pages	5
Journal	IEEE Transactions on Terahertz Science and Technology
Volume	10
Issue number	4
DOIs	https://doi.org/10.1109/TTHZ.2020.2968238
State	Published - Jul 2020
Externally published	Yes

Keywords

Absorbing layer (AL) length
blocked-impurity-band (BIB) terahertz (THz) detectors
blocking layer (BL) length
detectivity
planar structure

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10.1109/TTHZ.2020.2968238

Cite this

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title = "Impact of the Structural Parameters on the Photoresponse of Terahertz Blocked-Impurity-Band Detectors with Planar Structure",

abstract = "We fabricate germanium-based blocked-impurity-band (BIB) terahertz detectors with the same planar structure but different structural parameters. The photoresponse waveband range is about 40-130 μm. The best detectivity of these detectors reaches as high as 1.3 × 1013 Jones at 2.6 V and 4 K. The impact of the structural parameters, including the length of the absorbing layer and blocking layer (BL) on the performance of detectors, is investigated. It is concluded that there is an optimum BL length, enabling the fabricated BIB detectors to achieve the highest sensitivity. This work highlights the importance of the optimized structural parameters and their influence on the performance of the detectors.",

keywords = "Absorbing layer (AL) length, blocked-impurity-band (BIB) terahertz (THz) detectors, blocking layer (BL) length, detectivity, planar structure",

author = "Jiaqi Zhu and He Zhu and Hanlun Xu and Kai Li and Zhenglai Wang and Nasir Ali and Huiyong Deng and Ning Dai and Huizhen Wu",

note = "Publisher Copyright: {\textcopyright} 2011-2012 IEEE.",

year = "2020",

month = jul,

doi = "10.1109/TTHZ.2020.2968238",

language = "英语",

volume = "10",

pages = "358--362",

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issn = "2156-342X",

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TY - JOUR

T1 - Impact of the Structural Parameters on the Photoresponse of Terahertz Blocked-Impurity-Band Detectors with Planar Structure

AU - Zhu, Jiaqi

AU - Zhu, He

AU - Xu, Hanlun

AU - Li, Kai

AU - Wang, Zhenglai

AU - Ali, Nasir

AU - Deng, Huiyong

AU - Dai, Ning

AU - Wu, Huizhen

PY - 2020/7

Y1 - 2020/7

N2 - We fabricate germanium-based blocked-impurity-band (BIB) terahertz detectors with the same planar structure but different structural parameters. The photoresponse waveband range is about 40-130 μm. The best detectivity of these detectors reaches as high as 1.3 × 1013 Jones at 2.6 V and 4 K. The impact of the structural parameters, including the length of the absorbing layer and blocking layer (BL) on the performance of detectors, is investigated. It is concluded that there is an optimum BL length, enabling the fabricated BIB detectors to achieve the highest sensitivity. This work highlights the importance of the optimized structural parameters and their influence on the performance of the detectors.

AB - We fabricate germanium-based blocked-impurity-band (BIB) terahertz detectors with the same planar structure but different structural parameters. The photoresponse waveband range is about 40-130 μm. The best detectivity of these detectors reaches as high as 1.3 × 1013 Jones at 2.6 V and 4 K. The impact of the structural parameters, including the length of the absorbing layer and blocking layer (BL) on the performance of detectors, is investigated. It is concluded that there is an optimum BL length, enabling the fabricated BIB detectors to achieve the highest sensitivity. This work highlights the importance of the optimized structural parameters and their influence on the performance of the detectors.

KW - Absorbing layer (AL) length

KW - blocked-impurity-band (BIB) terahertz (THz) detectors

KW - blocking layer (BL) length

KW - detectivity

KW - planar structure

UR - https://www.scopus.com/pages/publications/85089029958

U2 - 10.1109/TTHZ.2020.2968238

DO - 10.1109/TTHZ.2020.2968238

M3 - 文章

AN - SCOPUS:85089029958

SN - 2156-342X

VL - 10

SP - 358

EP - 362

JO - IEEE Transactions on Terahertz Science and Technology

JF - IEEE Transactions on Terahertz Science and Technology

IS - 4

M1 - 8966380

ER -

Impact of the Structural Parameters on the Photoresponse of Terahertz Blocked-Impurity-Band Detectors with Planar Structure

Abstract

Keywords

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