In:
Journal of Physics D: Applied Physics, IOP Publishing, Vol. 57, No. 14 ( 2024-04-05), p. 145101-
Abstract:
The detection of ultraviolet (UV) radiation holds significant importance in various fields. As the demand for superior detector performance grows alongside advancements in science and technology, there is a need for detectors with larger light-to-dark rejection ratios and lower standby power consumption. This paper presents the outstanding performance of the rare earth metal oxide Nd 2 O 3 in broadband UV detection. With a wide forbidden band width of 4.6 eV, eliminating the requirement for additional filters, Nd 2 O 3 emerges as an ideal material for broadband UV detectors. The device exhibits remarkable characteristics, including a dark current of only 1.66 × 10 −11 A at a 5 V bias voltage, a light-to-dark rejection ratio of 1.33 × 10 3 at 280 nm and 15 μ W cm −2 , a responsiveness of 0.061 A W −1 , and a detection rate of 4.7 × 10 12 Jones. Furthermore, the performance of the device can be significantly enhanced through the formation of a heterojunction with TiO 2 . The heterojunction device exhibits a shortened response time of 78.64%, a reduced recovery time of 88.97%, and an increased light-to-dark rejection ratio of 2.75 × 10 3 at a 5 V bias voltage. This significant improvement in performance highlights the potential of the Nd 2 O 3 /TiO 2 heterojunction in broadband UV detection.
Type of Medium:
Online Resource
ISSN:
0022-3727
,
1361-6463
DOI:
10.1088/1361-6463/ad1b30
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2024
detail.hit.zdb_id:
1472948-9
detail.hit.zdb_id:
209221-9
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