NDLI: Optical and related properties of some natural three- and lower dimensional semiconductor systems

Content Provider	IEEE Xplore Digital Library
Author	Papavassiliou, G.C.
Copyright Year	1994
Description	Author affiliation: Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation (Papavassiliou, G.C.)
Abstract	Summary form only given. The optical and related properties (i.e. luminescence, photoluminescence excitation, resonance Raman excitation profiles etc) of some natural three- and lower-dimensional semiconductor Systems are briefly reviewed and some new results are reported. The following kinds of systems are investigated. 1) 3-D systems: Compounds of the formula (CH/sub 3/NH/sub 3/)MX/sub 3/ (where M=Pb, Sn, Ge; X=Cl, Br, I). These have a cubic perovskite structure and some of them are 3-D semiconductors. 2) 2-D systems: Compounds of the formula (C/sub n//H/sub 2n+1/NH/sub 3/)/sub 2/MX/su 4/ and compounds of the formula (CH/su 3/NH/sub 3/) (C/sub n/H/sub 2n+1/NH/sub 3/)M/sub 2/X/sub 7/ have a perovskite structure and are 2-D semiconductors. 3) I-D systems: Compounds of the formula M(L-L)/sub 2/M(L-L) )/sub 2/X)/sub 2/(C1O)/sub 4/))/sub 2/ (where M=Pt, Pd, Ni; L-L=di-amine; X=Cl, Br, 1) show I-D semiconductor behaviour. 0-D systems: Small particles of CdS and similar compounds as well as compounds of the formula (NMe)/sub 4/))/sub 8/M)/sub 20/X)/sub 13/(Spli)/sub 22/ (M=Cd, Zn; X=S and /or Se) show 0-D semiconductor behaviour (quantum dots). In all cases, the excitonic or charge transfer (absorption) and luminescence) bands in the visible-near infrared is the common feature of these systems. In some cases, a blue shift of the bands has been observed by decreasing the dimensionality.
Starting Page	659
Ending Page	659
File Size	85930
Page Count	1
File Format	PDF
DOI	10.1109/STSM.1994.836073
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-07-24
Publisher Place	Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Chemistry Electromagnetic wave absorption Quantum dots Luminescence Photoluminescence Tin Resonance Charge transfer Zinc
Content Type	Text
Resource Type	Article

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