Enhancement of Photoluminescence Intensity of CdSe Nanorods Doped in Cholesteric Liquid Crystals

详细信息    查看全文

• 作者：Chiu-Chang Huang (1)
  Tsu-Ruey Chou (1)
  Jun-Wei Chen (1)
  Chih-Yu Chao (1)
  
  1. Department of Physics ; National Taiwan University ; Taipei ; 10617 ; Taiwan ; Republic of China
  
• 关键词：Cholesteric liquid crystal ; CdSe nanorods ; Photoluminescence ; Oily streak
• 刊名：Brazilian Journal of Physics
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：45
• 期：1
• 页码：41-46
• 全文大小：1,101 KB
• 参考文献：1. F. Ely, M.H. Mamoru, O. Hamanaka, A.P. Mammana, Quim. Nova 30, 1776 (2007) CrossRef
  2. T.J. White, R.L. Bricker, L.V. Natarajan, V.P. Tondiglia, L. Green, Q. Li, T.J. Bunning, Opt. Express 18, 173 (2010) 8.000173" target="_blank" title="It opens in new window">CrossRef
  3. S. Furumi, Y. Sakka, Adv. Mater. 18, 1344 (2006) CrossRef
  4. M. Zapotocky, L. Ramos, P. Poulin, T.C. Lubensky, D.A. Weitz, Science 283, 209 (1999) 83.5399.209" target="_blank" title="It opens in new window">CrossRef
  5. H. Yoshida, Y. Tanaka, K. Kawamoto, H. Kubo, T. Tsuda, A. Fujii, S. Kuwabata, H. Kikuchi, M. Ozaki, Appl. Phys. Express 2, 121501 (2009) CrossRef
  6. F. Ely, L.Q. dos Santos, I.H. Bechtold, J. Eccher, H. Gallardo, L.F. Zagonel, J. Soc. Inf. Disp. 19, 781 (2011) 889/JSID19.11.781" target="_blank" title="It opens in new window">CrossRef
  7. K. Takatoh, A. Harima, Y. Kaname, K. Shinohara, M. Akimoto, Liq. Cryst. 39, 715 (2012) 80/02678292.2012.674160" target="_blank" title="It opens in new window">CrossRef
  8. A. Chaudhary, P. Malik, R. Mehra, K.K. Raina, J. Mol. Liq. 188, 230 (2013) CrossRef
  9. D.R. Jung, J. Kim, S. Nam, C. Nahm, H. Choi, J.I. Kim, J. Lee, C. Kim, B. Park, Appl. Phys. Lett. 99, 041906 (2011) 82" target="_blank" title="It opens in new window">CrossRef
  10. S.J. Park, S.W. Lee, S. Jeong, J.H. Lee, H.H. Park, D.G. Choi, J.H. Jeong, J.H. Choi, Nanoscale Res. Lett. 5, 1590 (2010) 81-3" target="_blank" title="It opens in new window">CrossRef
  11. O. Popov, V. Lirtsman, D. Davidov, Appl. Phys. Lett. 95, 191108 (2009) CrossRef
  12. R.S. Devan, C.L. Lin, S.Y. Gao, C.L. Cheng, Y. Liou, Y.R. Ma, Phys. Chem. Chem. Phys. 13, 13441 (2011) 83d" target="_blank" title="It opens in new window">CrossRef
  13. C.D. Donega, M. Bode, A. Meijerink, Phys. Rev. B 74, 085320 (2006) 85320" target="_blank" title="It opens in new window">CrossRef
  14. J.C. Payne, E.L. Thomas, Adv. Funct. Mater. 17, 2717 (2007) 83" target="_blank" title="It opens in new window">CrossRef
  15. A.L. Rodarte, C.G.L. Ferri, C. Gray, L.S. Hirst, S. Ghosh, Proc. SPIE 8279, 82790H (2012) CrossRef
  16. K.E. Mochalov, A.Y. Bobrovsky, V.A. Oleinikov, A.V. Sukhanova, A.E. Efimov, V. Shibaev, I. Nabiev, Proc. SPIE 8475, 847514 (2012) CrossRef
  17. A.L. Rodarte, G.V. Shcherbatyuk, L. Shcherbatyuk, L.S. Hirst, S. Ghosh, RSC Adv. 2, 12759 (2012) CrossRef
  18. X. Tong, Y. Zhao, J. Am. Chem. Soc. 129, 6372 (2007) CrossRef
  19. M. Ravnik, G.P. Alexander, J.M. Yeomans, S. Zumer, Faraday Discuss. 144, 159 (2010) 8676e" target="_blank" title="It opens in new window">CrossRef
  20. R. Bitar, G. Agez, M. Mitov, Soft Matter 7, 8198 (2011) 8j" target="_blank" title="It opens in new window">CrossRef
  21. H.-S. Kitzerow, C. Bahr, / Chirality in liquid crystals (Springer, New York, 2001), p. 150 CrossRef
  22. O.D. Lavrentovich, M. Kleman, V.M. Pergamenshchik, J. Phys. II 4, 377 (1994)
  23. C.J. Tien, C.Y. Huang, Y.M. Kao, P.C. Yang, J.H. Liu, Jpn. J. Appl. Phys. 48, 071301 (2009) 8.071301" target="_blank" title="It opens in new window">CrossRef
  
• 刊物类别：Physics and Astronomy
• 出版者：Springer New York
• ISSN：1678-4448

文摘

The enhancement of photoluminescence (PL) signals of CdSe nanorods caused by embedding in the cholesteric liquid crystals (CLCs) is demonstrated in this article. Three kinds of different CLCs have been used in this experiment, and the results have shown that the phenomenon of PL enhancement generally occurs in each sample. Moreover, the relations between the enhancement and the pitch of CLCs have been analyzed as well. It displays an inversely proportional property, that is, a greater enhancement of the PL signal is achieved in the samples with shorter pitches of CLCs. The highest PL amplification acquired in this study is 3.31 times. The enhancement phenomenon is attributed to the presence of oily streaks in CLCs, which possess advantages due to the excitation of CdSe nanorods. With the versatile properties that CLC have, this study suggests that the method could provide a potential way for PL signal manipulation in many optical fields.