High-performance diamond radiation detectors produced by lift-off method
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2016-03-01 |
| Journal | Europhysics Letters (EPL) |
| Authors | Takehiro Shimaoka, Junichi H. Kaneko, Masakatsu Tsubota, Hiroaki Shimmyo, Hideyuki Watanabe |
| Institutions | National Institute of Advanced Industrial Science and Technology, Hokkaido University |
| Citations | 30 |
Abstract
Section titled âAbstractâFor stable semiconductor detector operation under harsh environments, an ideal single-crystal diamond without a charge trapping centre is required. For this study, a self-standing single-crystal CVD diamond was fabricated using a lift-off method. The reduction of charge trapping factors such as structural defects, point defects, and nitrogen impurities, was attempted using 0.2% of low-methane concentration growth and using a full metal seal chamber. A high-quality self-standing diamond with strong free-exciton recombination emission was obtained. Charge collection efficiencies were 100.1% for holes and 99.8% for electrons, provided that and . Energy resolutions were 0.38% for both holes and electrons. We produced a high-performance diamond radiation detector using the productive lift-off method.