Optimal passivation process for improved spectroscopic grade CdMnTeSe single crystals based on chromic acid
Year: 2025
Type: article
Abstract: This study explores the effects of novel H 2 CrO 4 -based passivant on Cd 0.95 Mn 0.05 Te 0.98 Se 0.02 (CMTS) detectors. Optimal passivation for 3 min improved spectroscopic performance by addressing surface defects. However, longer passivation led to degradation due to Cr-invasion, as shown by XPS analysis. The use of a virtual Frisch grid further enhanced energy resolution, highlighting the potential of CMTS detectors for high-energy gamma spectroscopy. These findings emphasize the importance of precise passivation control and suggest that improved CMTS fabrication and passivation techniques could advance the development of cost-effective, larger volume CdTe-based detectors for room temperature applications.
Authors: Jiwon Seo, Seungho Song, Jangwon Byun, Chaewon Yoon, Taejoon Mo, Younghak Kim, Hansoo Kim, Jung-Yeol Yeom, Beomjun Park
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $200
Award: G2842835034
OpenAlex ID: W4408509686