Journal ArticleDOI
Near‐Band‐Edge Luminescence Studies of Diamond Doped during CVD Growth or by Ion Implantation
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TLDR
In this article, the near-band-edge cathodoluminescence of doped diamonds was studied at low temperatures, and the analysis of the spectra yields 630 meV activation energy of the phosphorus-related donor consistent with the estimate from the bound exciton spectra.Abstract:
Near-band-edge cathodoluminescence of doped diamonds was studied at low temperatures. The doped diamonds were prepared either during the CVD growth of the diamond films by adding boron, phosphorus, or lithium sources to the reaction gases, or alternatively by ion implantation of boron, phosphorus, sodium, or arsenic. Observation of the boron bound exciton after boron implantation and annealing above 1200 °C is taken as evidence that this acceptor species was successfully incorporated on substitutional lattice sites. Similarly, doping by phosphorus either during growth or by ion implantation and subsequent annealing leads to the emission of a bound exciton transition at 5.175 eV. Assuming Haynes' rule to be valid we estimate a donor ionization energy of nearly 640 meV for the phosphorus-related impurity. Discrete donor-acceptor pair transitions are observed in the near-band-edge region in diamonds which contain both phosphorus and boron in low concentrations. The analysis of the spectra yields 630 meV activation energy of the phosphorus-related donor consistent with the estimate from the bound exciton spectra.read more
Citations
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Journal ArticleDOI
Phosphorus-doped chemical vapor deposition of diamond
TL;DR: The semiconducting properties of phosphorus-doped diamond thin films grown using a metal-chamber-type microwave plasma-assisted chemical vapor deposition system have been investigated by Hall measurements over a wide temperature range.
Journal ArticleDOI
Electronic states of phosphorus in diamond
TL;DR: In this article, a set of n-type diamond thin films was investigated by infra-red absorption spectroscopy, and a continuum of absorption, attributed to the photoionisation of neutral phosphorus, was observed together with two peaks at 523 and 562 −meV attributed to electronic transitions from the ground level of phosphorus to its first and second excited states.
Journal Article
Cathodoluminescence of Phosphorus-Doped {111} Homoepitaxial Diamond Thin Films
Atsushi Sato,Kenji Tanabe,Shin-ichi Egawa,Toshiki Tsubota,Seiji Morooka,Junichi Hojyo,Hideaki Maeda,Hiroshi Kawarada +7 more
Journal ArticleDOI
Cathodoluminescence of phosphorus doped (111) homoepitaxial diamond thin films
TL;DR: In this paper, the binding energy of the free exciton to the donors, which is deduced from the energy difference between free and bound exciton, is 90 meV and the dominant peak at 5.18 eV is associated with one TO phonon.
Journal ArticleDOI
Characterization of n‐Type Doped Homoepitaxial Diamond Thin Films
A. Tajani,Etienne Gheeraert,N. Casanova,Etienne Bustarret,Jose A. Garrido,G. Rumen,Christoph E. Nebel,Mark E. Newton,D. Evans +8 more
TL;DR: In this paper, the successful n-type doping of epitaxial diamond films grown on (111) oriented synthetic type Ib crystals is shown, where Fourier Transform Infrared spectroscopy, cathodoluminescence, and Hall effect were employed to characterize a set of phosphorus-doped diamond films.
References
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Optical absorption and luminescence in diamond
TL;DR: In this paper, a review of the important point defects observed optically in diamond is presented, and the relevance of the experimental results to the current controversy about how to calculate the properties of point defects is brought out.
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Growth and characterization of phosphorous doped {111} homoepitaxial diamond thin films
TL;DR: In this article, an n-type semiconducting diamond thin film was obtained by microwave enhanced plasma chemical vapor deposition using phosphine (PH3) as a dopant source, and the activation energy of carriers was 0.43 eV.
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Experimental Proof of the Existence of a New Electronic Complex in Silicon
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The optical properties of luminescence centres in silicon
TL;DR: In this paper, a list of published photoluminescence transitions indicating their key properties is presented. And the relationship between the excited states of some optical centres and the band states of the silicon host lattice is discussed.
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Nitrogen and potential n-type dopants in diamond
TL;DR: In this paper, the potential n-type dopants in diamond were investigated via ab initio methods and the well-known distortions around the deep donor N were found to arise from the interaction of the N lone pair with a C dangling bond.