CuCl Nanocrystals in Monocrystalline NaCl Matrix

2004 ◽  
Vol 69 (4) ◽  
pp. 351-352 ◽  
Author(s):  
M Samah ◽  
S Mahtout ◽  
M Bouguerra ◽  
M A Belkhir
Keyword(s):  
Cucl Nanocrystals

Relaxation processes of photoexcited carriers in CuCl nanocrystals embedded in NaCl

1998 ◽  
Vol 57 (12) ◽  
pp. 7203-7207 ◽  
Author(s):  
S. Yano ◽  
A. Yamamoto ◽  
T. Goto ◽  
A. Kasuya
Keyword(s):  
Relaxation Processes ◽  
Cucl Nanocrystals

Subpicosecond dynamics of confined excitons in CuCl nanocrystals

1996 ◽  
Vol 217-218 ◽  
pp. 167-170 ◽  
Author(s):  
T. Itoh ◽  
S. Yano ◽  
S. Iwai ◽  
K. Edamatsu ◽  
T. Goto ◽  
...  
Keyword(s):  
Cucl Nanocrystals

Softening of the LO phonons in excited state of CuCl nanocrystals

2000 ◽  
Vol 87-89 ◽  
pp. 500-502 ◽  
Author(s):  
A.V Baranov ◽  
S Yamauchi ◽  
Y Masumoto
Keyword(s):  
Excited State ◽  
Cucl Nanocrystals

Luminescence and lasing of CuCl nanocrystals

1994 ◽  
Vol 60-61 ◽  
pp. 256-261 ◽  
Author(s):  
Yasuaki Masumoto
Keyword(s):  
Cucl Nanocrystals

Observation of Redshifts of Photoluminescence from Thin Films Assembled by CuCl Nanoclusters

1997 ◽  
Vol 11 (06) ◽  
pp. 275-281
Author(s):  
Bingyou Miao ◽  
Jianmin Hong ◽  
Pingping Chen ◽  
Xiaoli Yuan ◽  
Min Han ◽  
...  
Keyword(s):  
Thin Films ◽  
Quantum Confinement ◽  
Phonon Coupling ◽  
Transmission Electron ◽  
Two Samples ◽  
Evaporation Technique ◽  
The Mean ◽  
Quartz Substrates ◽  
Cucl Nanocrystals ◽  
Gas Evaporation Technique

Two samples of thin films, assembled by CuCl nanoclusters, have been prepared by the gas evaporation technique. The CuCl nanoclusters were deposited on monocrystalline silicon and quartz substrates and then coated with a layer of NaCl to prevent oxidation of the CuCl nanoclusters. From transmission electron microscope and selected area diffraction, it is clear that the two samples consist of CuCl nanocrystals and Cu aggregates and the mean diameters are about 3 nm and 6 nm. From the absorption and photoluminescence (PL) spectra of the two samples carried out at ~300 K, we found that the peaks of exciton absorption do not show up and luminescence peaks shift to lower energies, possibly due to the strong coupling between exciton and phonon. At 77 K, the PL peaks of excitons broadened by exciton–phonon coupling have been observed, in approximate agreement with the values calculated by the quantum confinement model. The broad peaks of emission from trapped states or bands have also been observed at 77 K. In addition, the interaction between exciton and phonon is stronger in the sample with mean diameter about 3 nm according to a larger broadening and redshift of the PL peak from excitons, in qualitative agreement with theoretical prediction.

Polaron and Exciton-Phonon Complexes in CuCl Nanocrystals

1995 ◽  
Vol 74 (9) ◽  
pp. 1645-1648 ◽  
Author(s):  
T. Itoh ◽  
M. Nishijima ◽  
A. I. Ekimov ◽  
C. Gourdon ◽  
Al. L. Efros ◽  
...  
Keyword(s):  
Cucl Nanocrystals
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