Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.256, 171-178, 1994
Heterojunctions, Quantum Confinement, and Electronic Competitions in Mixed Halide MX Solids
The mixed-halide MX solids [Pt(en)(2)] [Pt(en)2(X(y)X’(1-y))(2)] (ClO4)(4) (X,X’=Cl, Br, or I; en=1,2-diaminoethane) - abbreviated PtX1-yX’y - are realizations of nanoscale 1-D heterostructures in a well-characterized crystalline environment. Using resonance Raman spectroscopy, the complex interplay between quantum confinement, lattice mismatch effects, charge transfer at heterojunctions, and electronic interaction lengths across the junctions is explored for two CDW strength combinations : the strong-/moderate-CDW case of PtCl1-xBrx the strong-/weak-CDW case of PtCl1-xIx.