Hexagonal CdTe nanorods in spray deposited CdTe nanoparticle thin films
Hexagonal CdTe nanorods in spray deposited CdTe nanoparticle thin films
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DOI：
10.1002/pssa.200409057
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发表时间：
2004-09
期刊：
影响因子：
--
通讯作者：
A. Rao;V. Dutta
中科院分区：
文献类型：
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作者：
A. Rao;V. Dutta
通过在200 °C的温度下将通过溶剂热方法合成并分散在1-丁醇中的CdTe纳米颗粒喷涂在玻璃基底上来沉积纳米颗粒CdTe薄膜。在沉积期间，在向喷嘴施加和不施加电压的情况下沉积膜。无电压沉积的膜的X射线衍射显示立方CdTe主峰，而用700 V的电压沉积的膜显示六方CdTe主峰。用700 V的施加电压沉积的膜的TEM研究揭示了具有从20 nm至100 nm变化的宽度和高达几微米长的纳米棒的形成。用700 V沉积的薄膜的电子衍射图案显示形成了六角CdTe纳米棒，晶格参数a =0.454 nm和c = 0.745 nm。无电压沉积的薄膜显示出均匀分布的球形纳米颗粒（平均尺寸约为10 nm），并且发现晶格参数a为0.645 nm。（© 2004 WILEY-VCH Verlag GmbH & Co. KGaA，魏因海姆）
Nanoparticle CdTe thin films were deposited by spraying CdTe nanoparticles, synthesized by the solvothermal method and dispersed in 1-butanol, on glass substrates at a temperature of 200 °C. Films were deposited with and without a voltage applied to the nozzle during the deposition. X-ray diffraction of the film deposited without voltage showed cubic CdTe dominant peaks, while the films deposited with a voltage of 700 V showed hexagonal CdTe dominant peaks. TEM studies of the films deposited with an applied voltage of 700 V revealed the formation of nanorods having widths varying from 20 nm to 100 nm and being up to few microns long. Electron diffraction patterns for the films deposited with 700 V showed the formation of hexagonal CdTe nanorods with lattice parameters a =0.454 nm and c = 0.745 nm. The films deposited without voltage showed uniformly distributed spherical nanoparticles (average size ∼10 nm), and the lattice parameter a was found to be 0.645 nm. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)