低维卤化物钙钛矿直接型X射线探测器研究进展

董思吟, 帖舒婕, 袁瑞涵, 郑霄家

Research Progress on Low-dimensional Halide Perovskite Direct X-ray Detectors

DONG Siyin, TIE Shujie, YUAN Ruihan, ZHENG Xiaojia

表1 低维钙钛矿X射线探测器性能比较

Table 1 Comparison of low-dimensional perovskite X-ray detectors

Compound Eph/keV, Vp/kVp Thickness/ mm Electric field/ (V·mm-1) Sensitivity/ (µC·Gyair−1·cm−2) LoD/ (nGyair·s−1) Resistivity/ (Ω·cm) Bandgap/ eV µτ/ (cm2·V−1) Ref. Single crystal Cs4PbI6 30 keV - - 451.49 90 - 3.46 9.7×10-4 [55] Cs3Bi2I9 40 kVp 1.2 50 1652.3 130 2.79×1010 1.96 7.97×10-4 [28] Cs3Bi2I9 45 keV 1 120 964 44.6 1.12×109 ~1.89 1.87×10-3 [53] MA3Bi2i9 100 kVp 2.5 48 10620 0.62 5.27×1011 1.98 2.8×10-3 [25] MA3Bi2i9 40 kVp 1 60 1947 83 3.74×1010 1.99 2.87×10-3 [54] FA3Bi2I9 45 keV 0.9 ~560 598.1 200 7.8×1010 2.08 2.4×10-5 [52] (DMEDA)BiI5 50 kVp 0.6 494 72.5 - - 1.82 - [58] (H2MDAP)BiI5 70 keV 2 5 1.0 - 2.1×1010 1.83 - [57] CsPbI3 50 kVp - 4.17 2370 3020 7.4×109 2.67 3.63×10-3 [59] (NH4)3Bi2I9 (∥001) 22 keV - 2.2 8200 210 - 2.05 1.1×10-2 [29] (NH4)3Bi2I9 (⊥001) 22 keV - 6.5 803 55 - 2.05 4.0×10-3 [29] Rb3Bi2I9 30 keV 1 300 159.7 8.32 2.3×109 1.89 2.51×10-3 [61] (F-PEA)2PbI4 120 keV 1.5 ~130 3402 23 1.36×1012 2.30 5.1×10-4 [66] (PMA)2PbI4 40 kVp 0.9 ~56 283 2130 - 2.01 8.05×10-3 [67] BA2PbI4 30 kVp 2 10 148 241 2.6×1011 2.24 4.5×10-4 [64] BA2CsPbBr7 40 kVp 3.91 2.53 13260 72.5 2.2×109 2.74 - [68] BA2EA2Pb3Br10 70 keV 2 5 6.8×103 5500 4.5×1010 2.55 1.0×10-2 [69] (CH3OC3H9N)2CsPb2Br7 80 kVp 2 0 410 - - 2.51 3.2×10-3 [70] BDAPbI4 40 kVp - 310 242 430 - 2.37 4.43×10-4 [72] (BDA)CsPb2Br7 50 kVp 0.7 ~43 725.5 3810 4.35×1010 2.76 2.33×10-5 [73] (3AMPY)(FA)Pb2I7 50 kVp 1 200 5.23×104 151 - 1.54 2.0×10-3 [75] Polycrystalline MA3Bi2i9 35.5 keV 1 210 563 9.3 2.28×1011 2.08 4.6×10-5 [77] MA3Bi2i9 30.6 keV ~0.1 150 ~35 140 ~5×1011 2.09 3.89×10-5 [78] MA3Bi2i9 30.6 keV ~0.05 600 ~100 98.4 3.38×1011 2.03 1.6×10-6 [79] MA3Bi2i9 40 kVp 0.1 2000 2065 2.71 3.5×108 1.86 - [80] Cs4PbBr6 - 0.3 666.7 7068 1.75 1.376×1011 3.88 1.01×10-3 [81] Cs2TeI6 40 kVp 0.025 25 19.2 - 4.2×1010 1.57 5.2×10-5 [82] BA2MA9Pb10I31 ~60 keV 0.9 110 5362.3 8.1 ~1×1010 ~1.60 3.99×10-5 [26] BA2MA9Pb10I31 45 keV 1 210 7109 9.3 ~1.1×1010 ~1.61 ~5×10-5 [22] (BA2PbBr4)0.5FAPbI3 - 0.006 ~167 1.36×104 4.2 - - - [83] PEA2MA8Pb9I28 50 kVp - 600 10 860 69 5.4×1010 1.504 2.6×10−5 [84]