journal article·2017-07-01Open access

Behaviors of beryllium compensation doping in InGaAsP grown by gas source molecular beam epitaxy

Y. J. Ma, Y. G. Zhang, Y. Gu, S. P. Xi, X. Y. Chen, Baolai Liang, Bor-Chau Juang, Diana L. Huffaker, B. Du, X. M. Shao, J. X. Fang

AIP Advances· Volume 7· Issue 7

Abstract

We report structural properties as well as electrical and optical behaviors of beryllium (Be)-doped InGaAsP lattice-matched to InP grown by gas source molecular beam epitaxy. P type layers present a high degree of compensation on the order of 1018 cm−3, and for Be densities below 9.5×1017 cm−3, they are found to be n type. Enhanced incorporation of oxygen during Be doping is observed by secondary ion mass spectroscopy. Be in forms of interstitial donors or donor-like Be-O complexes for cell temperatures below 800°C is proposed to account for such anomalous compensation behaviors. A constant photoluminescence energy of 0.98 eV without any Moss-Burstein shift for Be doping levels up to 1018 cm−3 along with increased emission intensity due to passivation effect of Be is also observed. An increasing number of minority carriers tend to relax via Be defect state-related Shockley-Read-Hall recombination with the increase of Be doping density.
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Research context

OpenAlex topics: Semiconductor Quantum Structures and Devices · Advanced Semiconductor Detectors and Materials · Semiconductor materials and interfaces

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences 1 , Shanghai 200050, China

Department of Electrical Engineering, University of California 2 , Los Angeles, CA 90095, U.S.A.

Key Laboratory of Infrared Imaging Materials and Devices, Shanghai Institute of Technical Physics, Chinese Academy of Sciences 3 , Shanghai 200083, China

Funding

National key research and development program of china · Open program of key laboratory of infrared imaging materials and detectors · Shanghai sailing program · National Natural Science Foundation of China · Youth Innovation Promotion Association of the Chinese Academy of Sciences

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