Quantum well effect in bulk PbI(2) crystals revealed by the anisotropy of photoluminescence and Raman spectra.

Abstract

On subjecting a bulk 2H-PbI(2) crystal to vacuum annealing at 500 K followed by a sudden cooling at liquid nitrogen temperature stacking faults are generated that separate distinct layers of nanometric thickness in which different numbers of I-Pb-I atomic layers are bundled together. Such structures, containing two, three, four, five etc I-Pb-I atomic… (More)
DOI: 10.1088/0953-8984/21/2/025507

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