| 新型热释电材料及其在高性能红外探测器中的应用 |
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| 引用本文： | 罗豪甦.新型热释电材料及其在高性能红外探测器中的应用[J].红外与激光工程,2008,37(1):30-33. |
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| 作者姓名： | 罗豪甦 |
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| 作者单位： | 中国科学院上海硅酸盐研究所,上海,201800 |
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| 摘 要： | 采用改进的Bridgman法生长出了大尺寸高质量的Pb(Mg1/3Nb2/3)O3-PbTiO3(PMNT)单晶，并发现了PMNT单晶具有非常大的热释电响应。为探索高性能的热释电材料，提高现有红外探测器的性能，对PMN-PT的热释电性能、及其在红外探测器中的应用进行了系统的研究。研究表明：PMNT单晶具有优异的热释电性能，其综合性能优于传统的热释电材料。用PMNT单晶制备出了的红外探测器，电压响应率和比探测率分别为Rv = 211 V/W，D* = 1.06×108 cm·Hz1/2·W-1，器件性能能够基本满足使用要求，同时也表明PMNT单晶有望在高性能的红外探测及成像器件中得到实际应用。
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| 关 键 词： | Pb(Mg1/3Nb2/3)O3-PbTiO3单晶 热释电 红外探测器. |
| 文章编号： | 1007-2276(2008)01-0030-04 |
| 收稿时间： | 2007/4/9 |
| 修稿时间： | 2007年4月9日 |
Novel pyroelectric materials and their applications in high performance infrared devices |
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| LUO Hao-su.Novel pyroelectric materials and their applications in high performance infrared devices[J].Infrared and Laser Engineering,2008,37(1):30-33. |
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| Authors: | LUO Hao-su |
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| Affiliation: | Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | Large-size and high-performance Pb(Mg1/3Nb2/3)O3-PbTiO3(PMNT) single crystals are grown by a modified Bridgman technique. The pyroelectric properties and prototypes of infrared detectors of PMNT single crystals are investigated. The results reveal that the crystals exhibit outstanding pyroelectric performances which are superior to those of conventional pyroelectric materials. The infrared detectors have been successfully fabricated with voltage responsivity RV and specific detectivity D*, which can meet the requirement of practical applications. The investigation is of significant interest for exploiting PMNT crystals for high-performance infrared detector and imager applications. |
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| Keywords: | Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal Pyroelectric Infrared device |
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