Some electronic properties of the molybdenum bronzes

Abstract

Measurements of the e.s.r. and optical spectra of the potassium and sodium molybdenum bronzes have been made. It is concluded that the observed e.s.r. signals arise from Mo5+ donor levels situated < 1 eV below the conduction band of the host Mooa matrix. A model for the electronic structures of these compounds is proposed.

Optical and electrochromic properties of annealed lithium-molybdenum-bronze thin films

“…7,68,69 In the stoichiometric compound MoO 3 , Mo shares its six valence electrons with the surrounding oxygen atoms in the way proposed by Dickens and Neild. 70 Also, in the stoichiometric form, all the levels lying above the valence band are empty, but after the metallic (or hydrogen) insertion into MoO 3 , all the optical or electronic transitions from the valence band to the main conduction band are mainly controlled by the Bloch electrons.…”

Resonant soft x-ray inelastic scattering and soft x-ray emission study of the electronic structure ofα-MoO3

“…These materials are all derived from the band insulator ␣-MoO 3 , which has a band gap of approximately 3 eV. 2,3 While the electronic structure of K 0.3 MoO 3 , Li 0.9 Mo 6 O 17 , and Na 0.9 Mo 6 O 17 have been extensively studied, 4 the same cannot be said for insulating ␣-MoO 3 .…”

“…[13][14][15] From an electronic structure perspective, each MoO 6 octahedron can be treated to first approximation without considering any interaction between octahedra. 3 In this case the resulting molecular orbitals will broaden into bands in the solid. This approach yields a starting point of the basic features of the electronic structure of ␣-MoO 3 .…”

“…Since the ‫ء‬ states have some metal d character, optical transitions across the gap are dipole allowed and such measurements indicate that the gap is approximately 3 eV in magnitude. 2,3 This starting point allows convenient comparison with numerical calculations of the electronic structure of ␣-MoO 3 . [13][14][15] II.…”

Electrochemical Multi-Coloration of Molybdenum Oxide Bronzes

“…[1][2][3][4][5][6][7][8][9][10][11] The electrochromism in Mo oxides and the formation of Mo oxide bronzes have been successfully rationalized by the theory of the simultaneous ingression of cations and electrons. The MoO 6 octahedra, with sharing the edges and corners having zigzag chains and unique layers provide the open channels for the intercalation.…”