Development of heterojunction diode-type gamma ray detectors based on epitaxially grown thick CdTe on n+-Si substrates

被引：20

作者：

Yasuda, K. ^{[1
]}

Niraula, M. ^{[1
]}

Noda, K. ^{[1
]}

Yokota, M. ^{[1
]}

Ohashi, H. ^{[1
]}

Nakamura, K. ^{[1
]}

Omura, M. ^{[1
]}

Shingu, I. ^{[1
]}

Minoura, S. ^{[1
]}

Tanaka, R. ^{[1
]}

Agata, Y. ^{[1
]}

机构：

[1] Nagoya Inst Technol, Grad Sch Engn, Nagoya, Aichi 4668555, Japan

来源：

IEEE ELECTRON DEVICE LETTERS | 2006年 / 27卷 / 11期

关键词：

cadmium telluride (CdTe) epitaxial layers; energy resolution; gamma ray detector; heterojunction diode; metal-organic vapor phase epitaxy (MOVPE);

D O I：

10.1109/LED.2006.884723

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Room temperature nuclear radiation detectors with energy discrimination capability developed by growing thick cadmium telluride (CdTe) epitaxial layers directly on n(+)-Si substrates in a metal-organic vapor phase epitaxy system is reported for the first time. The CdTe/n(+)-Si heterojunction diode detector exhibited good rectification and charge collection properties. The reverse leakage currents were typically 1 x 10(-7) to 5 x 10(-7) A/cm(2) at 50-V bias. The detector clearly demonstrated its energy discrimination capability by resolving gamma peak from the Am-241 radioisotope during radiation detection test at room temperature.

引用

页码：890 / 892

页数：3

共 10 条

[1] Characterization of large single-crystal gamma-ray detectors of cadmium zinc telluride [J].

Burger, A ;

Groza, M ;

Cui, Y ;

Hillman, D ;

Brewer, E ;

Bilikiss, A ;

Wright, GW ;

Li, L ;

Fu, F ;

James, RB .

JOURNAL OF ELECTRONIC MATERIALS, 2003, 32 (07) :756-760

[2] Material properties of large-volume cadmium zinc telluride crystals and their relationship to nuclear detector performance [J].

James, RB ;

Brunett, B ;

Heffelfinger, J ;

Van Scyoc, J ;

Lund, J ;

Doty, FP ;

Lingren, CL ;

Olsen, R ;

Cross, E ;

Hermon, H ;

Yoon, H ;

Hilton, N ;

Schieber, M ;

Lee, EY ;

Toney, J ;

Schlesinger, TE ;

Goorsky, M ;

Yao, W ;

Chen, H ;

Burger, A .

JOURNAL OF ELECTRONIC MATERIALS, 1998, 27 (06) :788-799

[3] Direct growth of high-quality thick CdTe epilayers on Si(211) substrates by metalorganic vapor phase epitaxy for nuclear radiation detection and imaging [J].

Niraula, M. ;

Yasuda, K. ;

Ohnishi, H. ;

Takahashi, H. ;

Eguchi, K. ;

Noda, K. ;

Agata, Y. .

JOURNAL OF ELECTRONIC MATERIALS, 2006, 35 (06) :1257-1261

[4] Direct growth of high-quality CdTe epilayers on Si(211) substrates by metalorganic vapor-phase epitaxy [J].

Niraula, M ;

Yasuda, K ;

Ohnishi, H ;

Eguchi, K ;

Takahashi, H ;

Noda, K ;

Agata, Y .

JOURNAL OF CRYSTAL GROWTH, 2005, 284 (1-2) :15-19

[5] Development of nuclear radiation detectors with energy resolution capability based on CdTe-n+-GaAs heterojunction diodes [J].

Niraula, M ;

Yasuda, K ;

Uchida, K ;

Nakanishi, Y ;

Mabuchi, T ;

Agata, Y ;

Suzuki, K .

IEEE ELECTRON DEVICE LETTERS, 2005, 26 (01) :8-10

[6] Growth of thick CdTe epilayers on GaAs substrates and evaluation of CdTe/n+-GaAs hetyerojunction diodes for an x-ray imaging detector [J].

Niraula, M ;

Yasuda, K ;

Nakanishi, Y ;

Uchida, K ;

Mabuchi, T ;

Agata, Y ;

Suzuki, K .

JOURNAL OF ELECTRONIC MATERIALS, 2004, 33 (06) :645-650

[7] Recent advances in compound semiconductor radiation detectors [J].

Sellin, PJ .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 513 (1-2) :332-339

[8] Room-temperature semiconductor device and array configurations [J].

Squillante, MR ;

Cirignano, L ;

Grazioso, R .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 458 (1-2) :288-296

[9] CdZnTe and CdTe detector arrays for hard X-ray and gamma-ray astronomy [J].

Stahle, CM ;

Parker, BH ;

Parsons, AM ;

Barbier, LM ;

Barthelmy, SD ;

Gehrels, NA ;

Palmer, DM ;

Snodgrass, SJ ;

Tueller, J .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1999, 436 (1-2) :138-145

[10] Development of nuclear radiation detectors with energy discrimination capabilities based on thick CdTe layers grown by metalorganic vapor phase epitaxy [J].

Yasuda, K ;

Niraula, M ;

Kusama, H ;

Yamamoto, Y ;

Tominaga, M ;

Takagi, K ;

Agata, Y ;

Suzuki, K .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2005, 52 (05) :1951-1955

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