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- Schnadt, J, et al.
(författare)
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Electron-spectroscopy study of LiC60: Charge transfer and dimer formation
- 2000
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Ingår i: PHYSICAL REVIEW B. - : AMERICAN PHYSICAL SOC. - 0163-1829. ; 62:7, s. 4253-4256
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Tidskriftsartikel (refereegranskat)abstract
- Li-C-60 compounds LixC60 were studied for average Li concentration (x) over bar less than or equal to 1 using photoelectron spectroscopy. Strong evidence is found for the formation of LiC60 dimers, as well as a second phase. The study suggests that the sm
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- Zhao, QX, et al.
(författare)
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Optical recombination of ZnO nanowires grown on sapphire and Si substrates
- 2003
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Ingår i: Applied Physics Letters. - : American Institute of Physics. - 0003-6951 .- 1077-3118. ; 83:1, s. 165-167
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Tidskriftsartikel (refereegranskat)abstract
- ZnO nanowires have been grown on sapphire and Si substrates using catalytic growth. A strong near-band-gap ultraviolet emission is observed at room temperature. By carefully studying the temperature dependence of ZnO wire emission, we found that the room-temperature UV emission contains two different transitions; one is related to the ZnO free exciton and the other is related to the free-to-bound transition. The bound state has a binding energy of about 124 meV. The results from optical measurements show that a high quality of ZnO nanowires grown on sapphire and Si substrates has been achieved.
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