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Influence of zinc phthalocyanines on photoelectrical properties of hydrogenated amorphous silicon

Journal of Semiconductors 2009年第8期30卷 39-42页

作者：张长沙曾湘波彭文博石明吉刘石勇肖海波王占国陈军王双青 Key Laboratory of Semiconductor Materials Science Institute of SemiconductorsChinese Academy of Sciences National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of Sciences

Composites consisting of hydrogenated amorphous silicon （a-Si： H, inorganic） and zinc phthalocyanine （ZnPc, organic） were prepared by vacuum evaporation of ZnPc and sequential deposition amorphous silicon via plasma enhanced chemical vapor deposition （PECVD）. The optical and electrical properties of the composite film have been investigated. The results demonstrate that ZnPc can endure the temperature and bombardment of the PECVD plasma and photoconductivity of the composite film was improved by 89.9% compared to pure a-Si： H film. Electron mobility-lifetime products/lr of the composite film were increased by nearly one order of magnitude from 6.96 × 10^-7 to 5.08 × 10^-6 cm2/V. Combined with photoconductivity spectra of the composites and pure a-Si： H, we tentatively elucidate the improvement in photoconductivity of the composite film.

关键词： zinc phthalocyanines a-Si:H photoconductivity mobility-lifetime product

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Alpha particle detection with a planar CdZnTe detector and relative simulations

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Radiation Detection Technology and Methods 2021年第4期5卷 609-617页

作者： Yu Xiang Xiaopan Jiang Chao Wang Fanhui Meng Yiding Han Xianchao Huang Long Wei Beijing Engineering Research Center of Radiographic Techniques and Equipment Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Jinan Laboratory of Applied Nuclear Science Jinan 250131China

Purpose The performance of CZT inγ-ray and X-ray detection is growing rapidly in these ***,there are only a few reports on its utilization inαparticle ***,to study the properties of CZT for detection ofαparticle,a detection system has been manufactured,and a series of simulations have been *** A 22×22×0.7mm^(3) planar CZT detector is deployed to detect theαparticles from a radiation source containing Am-241 and Pu-239,while COMSOL MultiPhysics and GEANT4 are employed in the simulation of charge collection and interaction betweenαparticles and *** An energy resolution of 1.47%FWHM at 5.486MeV and 1.32%at 5.157MeV has been achieved.A simulated spectrum has been created,and it is analogous to the one from *** The experiment results show the potential of CZT inα*** simulations are confirmed effective and will guide a better design of the detecting system.

关键词： αparticle CZT detector Simulation Energy resolution mobility-lifetime product Charge collection Interaction

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