Abstract
ZnO hexagonal core nanorods with an average diameter of 55 nm were initially grown by using the hydrothermal method; then, ZnO-Zn1−x Mg x O quantum wells were deposited around the ZnO core nanorods by using the atomic layer deposition technique. To investigate the optical band structures, we measured the photoluminescence transitions of as-grown ZnO nanorods, the ZnO-ZnMgO coreshell and the ZnO-ZnMgO core-shell + quantum wells. To determine the thickness of quantum wells, we attempted to solve the self-consistent nonlinear Poisson-Schrödinger equation for two-dimensional hexagonal quantum-well band structures. Using the experimental and the calculated results, we were able to quantitatively determine the quantum-well thicknesses.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
G. W. She, X. H. Zhang, W. S. Shi, X. Fan, J. C. Chang, C. S. Lee, S. T. Lee and C. H. Liu, Appl. Phys. Lett. 92, 053111 (2008).
L. Schmidt-Mende and J. L. MacManus-Driscoll, Materials Today 10, 40 (2007).
R. Chen, G. Z. Xing, J. Gao, Z. Zhang, T. Wu and H. D. Sun, Appl. Phys. Lett. 95, 061908 (2009).
Ü. Özgür, Ya. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Doan, V. Avrutin, S.-J. Cho and H. Morkoç, J. Appl. Phys. 98, 041301 (2005).
A. Ohtomo, M. Kawasaki, I. Ohkubo, H. Koinuma, T. Yasuda and Y. Segawa, Appl. Phys. Lett. 75, 980 (1999).
S. Choopun, R. D. Vispute, W. Yang, R. P. Sharma, T. Venkatesan and H. Shen, Appl. Phys. Lett. 80, 1529 (2002).
T. Gruber, C. Kirchner, R. Kling, F. Reuss and A. Waag, Appl. Phys. Lett. 84, 5359 (2004).
Y. R. Ryu, T. S. Lee, J. A. Lubguban, A. B. Corman, H. W. White, J. H. Leem, M. S. Han, Y. S. Park, C. J. Youn and W. J. Kim, Appl. Phys. Lett. 88, 052103 (2006).
Y. Ryu, T. S. Lee, J. A. Lubguban, H. W. White, B. J. Kim, Y. S. Park and C. J. Youn, Appl. Phys. Lett. 88, 241108 (2006).
T. Makino, C. H. Chia, N. T. Tuan, Y. Segawa, M. Kawasaki, A. Ohtomo, K. Tamura and H. Koinuma, Appl. Phys. Lett. 77, 1632 (2000).
D. W. Ma, Z. Z. Ye and L. L. Chen, Phys. Stat. Sol. (a) 201, 2929 (2004).
K. Sakurai, T. Takagi, T. Kubo, D. Kajita, T. Tanabe, H. Takasu, S. Fujita and S. Fujita, J. Crystal Growth 237, 514 (2002).
C. Kim, W.-I. Park, G.-C. Yi and M. Kim, Appl. Phys. Lett. 89, 113106 (2006).
E.-S. Jang. J. Y. Bae, J. Yoo, W. I. Park, D.-W. Kim, G.-C. Yi, T. Yatsui and M. Ohtsu, Appl. Phys. Lett. 88, 023102 (2006).
W. W. Kim, J. W. Lee and S. H. Shim, J. Phys. and Chem. Solids 69, 1491 (2008).
J. Yoo, Y. J. Hong, H. S. Jung, Y.-J. Kim, C.-H. Lee, J. Cho, Y.-J. Doh, L. S. Dang, K. H. Park and G.-C. Yi, Adv. Func. Mat. 19, 1601 (2009).
B. Q. Cao, J. Zúñiga-Pérez, N. Boukos, C. Czekalla, H. Hilmer, J. Lenzner, A. Travlos, M. Lorenz and M. Grundmann, Nanotechnology 20, 305701 (2009).
C. Cheng, B. Liu, E. J. Sie, W. Zhou, J. Zhang, H. Gong, C. H. A. Huan, T. C. Sum, H. Sun and H. J. Fan, J. Phys. Chem. C 114, 3863 (2010).
Y. H. Wang, W. J. Duan, Z. L. Wu, D. Zheng, X. W. Zhou, B. Y. Zhou, L. J. Dai and Y. S. Wang, J. Luminescence 132, 1885 (2012).
K. F. Karlsson, H. Weman, K. Leifer, A. Rudra, E. Kapon and S. K. Lyo, Appl. Phys. Lett. 90, 101108 (2007).
S. Y. Lee, Y. H. Shin, Y. H. Park and Y. Kim, J. Korean. Phys. Soc. 58, 1174 (2011).
Y. H. Shin and Y. Kim, J. Korean. Phys. Soc. 61, 1174 (2012).
http://www.nextnano.de/ and references therein.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Shin, Y.H., Kim, Y. Determination of the quantum-well thickness of ZnO-ZnMgO core-shell cylindrical heterostructures by using interband optical transitions. Journal of the Korean Physical Society 63, 1760–1763 (2013). https://doi.org/10.3938/jkps.63.1760
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.3938/jkps.63.1760