Low frequency divergence of the dielectric constant and signature of the Meyer–Neldel rule in the ac conductivity of PbS and PbS:Mn nanorods in polymer

Abstract

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Fabrication of Luminescent Silver Doped PbS Nanowires in Polymer

“…In comparison to II-VI semiconductors, doping behaviors of IV-VI semiconductors are scarcely addressed so far. [17][18][19][20] In the group of IV-VI semiconductors, PbS is an important material characterized with a narrow band gap of 0.41 eV at 300 K and large exciton Bohr radius ∼18 nm. 21 This further facilitates to achieve stronger quantum confinement effects in * Author to whom correspondence should be addressed.…”

“…Simple size quantization effect may tune the optical absorption and emission characteristics in a wide range of wavelength spectrum (mid-infrared to visible), as reported for various PbS nanostructures. [18][19][20][21][22][23] Various surface modified, self-assembled and dimensionality controlled PbS nanostructures have recently been studied in order to understand nanoscale physical properties and realization of devices with improved and novel performances. [24][25][26][27][28][29] Suitably doped PbS nanostructures may also display interesting electronic and magnetic properties.…”