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Cadmium sulfide on synthetic clay

✍ Scribed by R.D. Stramel; T. Nakamura; J.K. Thomas

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
286 KB
Volume
130
Category
Article
ISSN
0009-2614

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✦ Synopsis

Synthetic clay (Laponite) has been used to prepare small particles of CdS. The particle size is limited by the interplanar spacing (I I.5 ..&) and the concentration of Cd*+ present on formation of the sulfide. The onset of absorption and the maximum emission wavelength increase with increasing cadmium concentration.

The luminescent lifetime is wavelength-dependent, varying from tens of nanoseconds at short wavelengths to hundreds of nanoseconds at longer wavelengths. The spectroscopic properties of the particles are studied as a function of cadmium concentration and discussed in terms of particle size.

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