Journal of Synthetic Crystals, Volume. 54, Issue 7, 1229(2025)

Growth and X-Ray Detection Properties of High-Quality Perovskite Single Crystals

Zhuangjie XU1,2, Yanshuang BA1,2, He XI2,3、*, Fuhui BAI1,2, Dazheng CHEN1,2, Weidong ZHU1,2, and Chunfu ZHANG1,2、*
Author Affiliations
  • 1School of Microelectronics,Xidian University,Xi’an 710071,China
  • 2State Key Laboratory of Wide-Bandgap Semiconductor Devices and Integrated Technology,School of Microelectronics,Xidian University,Xi’an 710071,China
  • 3School of Advanced Materials and Nanotechnology,Xidian University,Xi’an 710071,China
  • show less

    Metal halide perovskites (MHPs) single crystals have potential applications in the field of radiation detection due to their excellent optoelectronic properties. Additionally, suppressing defects both in the bulk during single crystal growth and on the surface after growth is expected to further improve the performance of semiconductor radiation detectors. In this study, high-quality MAPbBr3 single crystals with dimensions exceeding 10 mm×10 mm were grown by inverse temperature crystallization (ITC) using the amphiphilic surfactant thiobetaine 10 as an additive. The mechanism of additive-optimized crystal growth was analyzed and characterized. The synergistic effect of sulfonic acid amphiphiles in crystallization control and defect passivation significantly suppressed defect formation. The full width at half maximum (FWHM) of the grown MAPbBr3 single crystals reduces from 0.071° to 0.046°, while the long-chained alkyl groups make the surface of the crystals exhibit excellent hydrophobicity, increasing the surface contact angle increases from 84.04° to 96.25°. These results demonstrate an overall improvement in MHP single crystal quality. A device with Ni/Au-Ni/Au ring-symmetric electrodes was prepared, and the device resistivity increases from 2.08×107 Ω·cm to 2.82×108 Ω·cm, with a carrier mobility lifetime product of 1.81×10-2 cm2·V-1. Furthermore, MAPbBr3 single crystals detector achieve an X-ray detection sensitivity of 1 459 μC·Gyair-1·cm-2 under 50 kV X-ray irradiation and maintain stable operation over a 1 000 s test period. This strategy advances the practical application of perovskite single crystals in X-ray detection. Moreover, our strategy contributes to further progress in the practical application of perovskite single crystals in the field of X-ray detection.

    Keywords
    Tools

    Get Citation

    Copy Citation Text

    Zhuangjie XU, Yanshuang BA, He XI, Fuhui BAI, Dazheng CHEN, Weidong ZHU, Chunfu ZHANG. Growth and X-Ray Detection Properties of High-Quality Perovskite Single Crystals[J]. Journal of Synthetic Crystals, 2025, 54(7): 1229

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Apr. 10, 2025

    Accepted: --

    Published Online: Aug. 28, 2025

    The Author Email: He XI (hxi@xidian.edu.cn), Chunfu ZHANG (cfzhang@xidian.edu.cn)

    DOI:10.16553/j.cnki.issn1000-985x.2025.0073

    Topics