Crystal growth, characterization, and fabrication of AgGaSe2 crystals as novel material for room-temperature radiation detectors

Utpal N. Roy; Michael Groza; Yunlong Cui; Arnold Burger; Zane W. Bell; Donald A. Carpenter

doi:10.1117/12.563890

21 October 2004 Crystal growth, characterization, and fabrication of AgGaSe₂ crystals as novel material for room-temperature radiation detectors

Utpal N. Roy, Michael Groza, Yunlong Cui, Arnold Burger, Zane W. Bell, Donald A. Carpenter

Author Affiliations +

Proceedings Volume 5540, Hard X-Ray and Gamma-Ray Detector Physics VI; (2004) https://doi.org/10.1117/12.563890
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

Silver gallium diselenide (AgGaSe₂) is a semiconductor compound having an energy bangap of 1.7 eV, a value that is favorable for the room temperature radiation detection application. The starting material was synthesized from high purity elemental starting materials: 5N purity Se, 6N purity Ag, and 7N purity Ga. The crystals were grown at 880 °C in a three-zone semi-transparent gold-coated horizontal furnace. High resistivity (1.4 x 10¹¹ ohm-cm) material was obtained and radiation detectors were fabricated. The response to gamma and alpha particles will be reported along with an analysis of the mobility - trapping time product for this novel material.

Citation Download Citation

Utpal N. Roy, Michael Groza, Yunlong Cui, Arnold Burger, Zane W. Bell, and Donald A. Carpenter "Crystal growth, characterization, and fabrication of AgGaSe₂ crystals as novel material for room-temperature radiation detectors", Proc. SPIE 5540, Hard X-Ray and Gamma-Ray Detector Physics VI, (21 October 2004); https://doi.org/10.1117/12.563890

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