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- 1. Appl. Phys. Lett. 89, 173108 (2006) , “Midgap luminescence centers in single-wall carbon nanotubes created by ultraviolet illumination”, Konstantin Iakoubovskii, Nobutsugu Minami, Yeji Kim, Kanae Miyashita, Said Kazaoui, and Balakrishnan NaliniThe authors report the effect of ultraviolet (UV) illumination on optical properties of single-wall carbon nanotubes (SWCNTs) isolated using various dispersants. It is demonstrated that even weak UV light (~1 mW/cm2) can irreversibly alter the SWCNT structure, thus resulting in the... (Read more)
- 2. J. Appl. Phys. 100, 073702 (2006) , “Size and shape effects on excitons and biexcitons in single InAs/InP quantum dots”, N. Chauvin, B. Salem, G. Bremond, G. Guillot, C. Bru-Chevallier, and M. GendrySingle InAs quantum dots grown on an InP vicinal substrate are studied using polarized microphotoluminescence. The study of electron-hole exchange energy splitting reveals that the energy splitting is influenced by quantum confinement. The biexciton binding energies found for single dots grown on... (Read more)
- 3. J. Appl. Phys. 100, 023109 (2006) , “Exciton fine structure and biexciton binding energy in single self-assembled InAs/AlAs quantum dots”, D. Sarkar, H. P. van der Meulen, J. M. Calleja, J. M. Becker, R. J. Haug, and K. PierzThe exciton and biexciton emissions of a series of single quantum dots of InAs in an AlAs matrix have been studied. These emissions consist of linear cross polarized doublets showing large values of both the biexciton binding energy and the fine-structure splitting. At increasing exciton emission... (Read more)
- 4. Phys. Rev. B 74, 155310 (2006) , “Optical study of excitation and deexcitation of Tm in GaN quantum dots”, Thomas Andreev, Nguyen Quang Liem, Yuji Hori, Mitsuhiro Tanaka, Osamu Oda, Daniel Le Si Dang, Bruno Daudin, and Bruno GayralWe report on the optical properties of molecular beam epitaxy grown GaN quantum dots (QDs) doped with Tm. Under optical excitation above the fundamental energy of GaN QDs, the fundamental transition emission from the GaN QD host was not observed while bright emission from Tm3+ manifolds... (Read more)
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Updated at 2010-07-20 16:50:39
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