https://scholars.lib.ntu.edu.tw/handle/123456789/74984
標題: | Electro-optical modulation for a boron nitride nanotube probed by first-principles calculations | 作者: | Chen, Chun-Wei Lee, Ming-Hsien Lin, Yu-Ting |
公開日期: | 2006 | 卷: | 89 | 期: | 22 | 起(迄)頁: | - | 來源出版物: | Applied Physics Letters | 摘要: | The electro-optical modulation effect of a (10,0) boron nitride nanotube is investigated by first-principles, density functional theory calculations. The optical properties of boron nitride nanotubes can be tuned through perturbation by a transverse electric field. Large optical anisotropy in variations of the absorption spectra and refractive indices in response to external electric field is found. In addition, a method called the band-resolved absorption density analysis technique is developed to investigate the detailed optical absorption transition processes. The result is consistent with the recent experimental observation [M. Ishigami, Phys. Rev. Lett. 94, 56804 (2005)] and suggests that the boron nitride nanotubes can be a promising material for electro-optical modulation device applications. © 2006 American Institute of Physics. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/95592 https://www.scopus.com/inward/record.uri?eid=2-s2.0-33751555051&doi=10.1063%2f1.2370561&partnerID=40&md5=194aa21d44806b172776e6ed67ed452b |
ISSN: | 00036951 | SDG/關鍵字: | Boron compounds; Electric fields; Electrooptical effects; Light absorption; Light modulation; Probability density function; Boron nitride nanotubes; Electro-optical modulation; Nanotubes |
顯示於: | 材料科學與工程學系 |
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