Optical properties of nanostructured lead sulfide films with a [D0.sub.3] cubic structure
The optical transmittance of nanostructured cubic PbS (lead sulfide) films with a [D0.sub.3] structure is measured in the wavelength range 300 to 3200 nm. The film thicknesses are in the range ~120 to ~400 nm. Electron microscopy of the microstructure shows that about half of the films' particl...
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| Published in: | Semiconductors (Woodbury, N.Y.) Vol. 45; no. 12; p. 1559 |
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01-12-2011
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| Abstract | The optical transmittance of nanostructured cubic PbS (lead sulfide) films with a [D0.sub.3] structure is measured in the wavelength range 300 to 3200 nm. The film thicknesses are in the range ~120 to ~400 nm. Electron microscopy of the microstructure shows that about half of the films' particles are 60 nm or smaller in size. As the average particle size is decreased, the band gap [E.sub.g] increases from 0.85 to 1.5 eV, being noticeably larger than the band gap of coarse-grained PbS, 0.41 eV. This is indicative of a blue shift of the optical absorption band in nanostructured PbS films. DOI: 10.1134/S1063782611120116 |
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| AbstractList | The optical transmittance of nanostructured cubic PbS (lead sulfide) films with a [D0.sub.3] structure is measured in the wavelength range 300 to 3200 nm. The film thicknesses are in the range ~120 to ~400 nm. Electron microscopy of the microstructure shows that about half of the films' particles are 60 nm or smaller in size. As the average particle size is decreased, the band gap [E.sub.g] increases from 0.85 to 1.5 eV, being noticeably larger than the band gap of coarse-grained PbS, 0.41 eV. This is indicative of a blue shift of the optical absorption band in nanostructured PbS films. DOI: 10.1134/S1063782611120116 |
| Audience | Academic |
| Author | Kozhevnikova, N.S Sadovnikov, S.I Gusev, A.I |
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| DOI | 10.1134/S1063782611120116 |
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| Snippet | The optical transmittance of nanostructured cubic PbS (lead sulfide) films with a [D0.sub.3] structure is measured in the wavelength range 300 to 3200 nm. The... |
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| Title | Optical properties of nanostructured lead sulfide films with a [D0.sub.3] cubic structure |
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