碘化铅(PbI2)晶体的平均原子序数较高,有较宽的禁带宽度,作为一种新型室温核辐射探测器材料有着广阔前景.以高纯Pb和I2单质为原料,采用两温区气相输运法(TVM)成功合成出单相PbI2多晶原料,并以此为原料,用垂直布里奇曼法(VBM)生长了3种不同颜色的PbI2单晶体.研究表明:晶体生长工艺参数对晶体的质量有重要影响,适当调整温度场和安瓿在生长炉中的位置,可有效地避免或减轻晶体富碘现象,从而生长出优质的黄色PbI2单晶体.
参考文献
| [1] | ROTH S;WILLIG W R .Lead iodide nuclear particle detectors[J].Applied Physics Letters,1971,18:328-330. |
| [2] | Shoji T.;Ohba K. .Fabrication of radiation detector using PbI/sub 2/ crystal[J].IEEE Transactions on Nuclear Science,1995(4):659-662. |
| [3] | Bhavsar DS.;Saraf KB. .Morphology of PbI2 crystals grown by gel method[J].Crystal Research and Technology: Journal of Experimental and Industrial Crystallography,2002(1):51-55. |
| [4] | Shah K.S.;Bennett P. .Lead iodide optical detectors for gamma ray spectroscopy[J].IEEE Transactions on Nuclear Science,1997(3):448-450. |
| [5] | Fornaro L.;Saucedo E.;Mussio L.;Gancharov A. .Toward epitaxial lead-iodide films for X-ray digital imaging[J].IEEE Transactions on Nuclear Science,2002(5):2274-2278. |
| [6] | Oliveira I.B.;Costa F.E.;Armelin M.J.;Cardoso L.P.;Hamada M.M. .Purification and growth of PbI/sub 2/ crystals: dependence of the radiation response on the PbI/sub 2/ crystal purity[J].IEEE Transactions on Nuclear Science,2002(4):1968-1973. |
| [7] | Schieber M.;Olsen RW.;Mcgregor DS.;Vanscyoc JM.;James RB. Soria E.;Bauser E.;Lund JC. .MATERIAL PROPERTIES AND ROOM-TEMPERATURE NUCLEAR DETECTOR RESPONSE OF WIDE BANDGAP SEMICONDUCTORS[J].Nuclear Instruments and Methods in Physics Research, Section A. Accelerators, Spectrometers, Detectors and Associated Equipment,1996(2/3):492-495. |
| [8] | FORNARO L;SAUCEDO E;MUSSIO L et al.Lead iodide platelets:correlation between surface,optical,and electrical properties with X-ray and Y-ray spectrometric performance[J].IEEE Transactions on Nuclear Science,2002,49(06):3300-3305. |
| [9] | ECKSTEIN J;ERLER B;EICHE C et al.Growth of bulk lead di-iodide crystals from the vapor phase[J].Journal of Crystal Growth,1993,131:453. |
| [10] | Shoji T.;Ohba K. .Characterization of PbI/sub 2/ radiation detectors using the response of /spl alpha/-rays[J].IEEE Transactions on Nuclear Science,1994(4):694-697. |
| [11] | 张克从;张乐潓.晶体生长科学与技术[M].北京:科学出版社,1997 |
| [12] | Shoji T.;Hitomi K. .Fabrication of a nuclear radiation detector using the PbI/sub 2/ crystal and its response characteristics for gamma-rays[J].IEEE Transactions on Nuclear Science,1998(3):581-584. |
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