Two-dimensional hybrid double perovskite (PA)4AgBiBr8 single crystals for X-ray detection

Lead-free double perovskite has become a candidate material for green optoelectronic applications due to its low toxicity and human-friendly characteristics. Double perovskite has a huge application prospect in the field of optical detectors, especially X-ray detection in recent years. By introducin...

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Bibliographic Details
Published in:Optical materials 2022-11, Vol.133, p.112972, Article 112972
Main Authors: Liu, Peirong, Xiao, Yingrui, Yang, Zhou, Yu, Shouwu, Meng, Xianguang
Format: Article
Language:English
Subjects:
Crystal growth
Semiconductors
Sensitivity
Two-dimensional perovskite
X-ray detector
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Summary:Lead-free double perovskite has become a candidate material for green optoelectronic applications due to its low toxicity and human-friendly characteristics. Double perovskite has a huge application prospect in the field of optical detectors, especially X-ray detection in recent years. By introducing propylammonium (PA), we have grown a larger size 2D double perovskite (PA)4AgBiBr8 single crystal. While inheriting the high stability of the 2D material, it also exhibits good X-ray response. The constructed planar Au/(PA)4AgBiBr8/Au X-ray detector displays a sensitivity of 6.89 μC Gy−1 cm−2 under 40 V bias voltage and 40 keV X-ray radiation. •Preparation of (PA)4AgBiBr8 2D double perovskite single crystals using solution growth.•As-grown (PA)4AgBiBr8 single crystals exhibited suitable optical properties and thermal stability.•The (PA)4AgBiBr8 crystals have a sensitivity of 6.89 μC Gy−1 cm−2 under X-ray irradiation at 40 V bias.
ISSN:0925-3467
1873-1252
DOI:10.1016/j.optmat.2022.112972