Band gaps of doped and undoped films of molecular icosahedra
Document Type
Article
Date of Original Version
10-30-1996
Abstract
The band gaps and electronic structures of doped and undoped films of molecular icosahedra are reported. The occupied and unoccupied electronic structure of undoped icosahedral closo-1,2-dicarbadodecarborane (C2B10H12) thin films resembles that of the isolated molecule. The Fermi level of the molecular thin films is roughly at midgap. Upon initial Na doping of the orthocarborane films, an unoccupied extramolecular (exopolyhedral) state forms within the gap at an energy of about 3 eV above the Fermi energy. With Na doping, the film of molecular icosahedra resembles a system with Hubbard-like bands and an appreciable correlation U.
Publication Title, e.g., Journal
Materials Science and Engineering A
Volume
217-218
Citation/Publisher Attribution
McIlroy, D. N., Jiandi Zhang, P. A. Dowben, and D. Heskett. "Band gaps of doped and undoped films of molecular icosahedra." Materials Science and Engineering A 217-218, (1996): 64-68. doi: 10.1016/S0921-5093(96)10302-6.