TY - JOUR
T1 - High-Performance MDABCO-NH4(BF4)3 Single Crystals for Rapid Real-Time Charged Particle Detection and Tissue-Equivalent X-ray Imaging
AU - Wang, Yingming
AU - Xu, Lingyan
AU - Liang, Lu
AU - Qin, Zhentao
AU - Han, Shuai
AU - Liu, Chongqi
AU - Lian, Lixiang
AU - Zheng, Wei
AU - Lei, Yanyan
AU - Hu, Qinzeng
AU - Wang, Tao
AU - Jie, Wanqi
N1 - Publisher Copyright:
© 2025 American Chemical Society.
PY - 2025/5/21
Y1 - 2025/5/21
N2 - Achieving real-time, high-sensitivity radiation detection with stability and precision remains a critical challenge in medical diagnostics and radiation therapy. Here, we report the development of MDABCO-NH4(BF4)3 single crystals (SCs), a metal-free perovskite material with exceptional performance for both X-ray and charged particle detection. Large-scale MDABCO-NH4(BF4)3 SCs (15 × 13 × 5 mm3) were synthesized via a simple low-temperature solution method, achieving superior crystallinity with a full width at half-maximum (fwhm) of 0.0061°. The MDABCO-NH4(BF4)3 detectors exhibit high resistivity (1.31 × 1012 Ω·cm), low trap density (1.09 × 109 cm-3), and excellent charge transport properties ((μτ)h = 3.15 × 10-5 cm2·V-1). For α-particle detection, the MDABCO-NH4(BF4)3 detectors achieve a high energy resolution of 35.0% at 5.49 MeV and a fast response time of 5 ms, demonstrating single-particle sensitivity. For X-ray detection, MDABCO-NH4(BF4)3 detectors exhibit high sensitivity (13,529 μC·Gyabs-1·cm-2) and an ultralow detection limit (17.1 nGyair·s-1), significantly lower than the 5.5 μGyair·s-1 standard for active personal dosimeters used in regular medical diagnostics. The combination of superior charge transport properties with stability and high signal-to-noise ratio establishes MDABCO-NH4(BF4)3 SCs as a versatile material for real-time radiation monitoring and high-precision medical imaging applications.
AB - Achieving real-time, high-sensitivity radiation detection with stability and precision remains a critical challenge in medical diagnostics and radiation therapy. Here, we report the development of MDABCO-NH4(BF4)3 single crystals (SCs), a metal-free perovskite material with exceptional performance for both X-ray and charged particle detection. Large-scale MDABCO-NH4(BF4)3 SCs (15 × 13 × 5 mm3) were synthesized via a simple low-temperature solution method, achieving superior crystallinity with a full width at half-maximum (fwhm) of 0.0061°. The MDABCO-NH4(BF4)3 detectors exhibit high resistivity (1.31 × 1012 Ω·cm), low trap density (1.09 × 109 cm-3), and excellent charge transport properties ((μτ)h = 3.15 × 10-5 cm2·V-1). For α-particle detection, the MDABCO-NH4(BF4)3 detectors achieve a high energy resolution of 35.0% at 5.49 MeV and a fast response time of 5 ms, demonstrating single-particle sensitivity. For X-ray detection, MDABCO-NH4(BF4)3 detectors exhibit high sensitivity (13,529 μC·Gyabs-1·cm-2) and an ultralow detection limit (17.1 nGyair·s-1), significantly lower than the 5.5 μGyair·s-1 standard for active personal dosimeters used in regular medical diagnostics. The combination of superior charge transport properties with stability and high signal-to-noise ratio establishes MDABCO-NH4(BF4)3 SCs as a versatile material for real-time radiation monitoring and high-precision medical imaging applications.
KW - MDABCO-NH(BF) single crystals
KW - X-ray detection
KW - crystal growth
KW - metal-free perovskites
KW - real-time particle detection
UR - http://www.scopus.com/inward/record.url?scp=105004472151&partnerID=8YFLogxK
U2 - 10.1021/acsphotonics.5c00152
DO - 10.1021/acsphotonics.5c00152
M3 - 文章
AN - SCOPUS:105004472151
SN - 2330-4022
VL - 12
SP - 2685
EP - 2694
JO - ACS Photonics
JF - ACS Photonics
IS - 5
ER -