In the present study single-crystalline ZnO samples grown from the vapor phase, the melt, and a high-temperature aqueous solution (hydrothermal growth) are investigated before and after hydrogen plasma treatments, by means of deep level transient spectroscopy (DLTS) and high-resolution Laplace DLTS. Dominant DLTS peaks are found to appear in the range of 120-350 K for all materials. The DLTS spectra depend on the procedure of growth of the ZnO. The thermal stabilities of the defects in an oxygen atmosphere and in an oxygen-lean atmosphere are analyzed. The origin of the DLTS peaks is discussed.
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Nelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South AfricaNelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South Africa
Botha, J. R.
Wagener, V.
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Nelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South AfricaNelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South Africa
Wagener, V.
Murape, D. M.
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Nelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South AfricaNelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South Africa
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Univ Pretoria, Phys Dept, ZA-0002 Pretoria, South Africa
Univ Elimam Elmahdi, Fac Educ, Kosti White Nile, SudanUniv Pretoria, Phys Dept, ZA-0002 Pretoria, South Africa
Ali, Abdulraoof I. A.
Danga, Helga T.
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Univ Pretoria, Phys Dept, ZA-0002 Pretoria, South AfricaUniv Pretoria, Phys Dept, ZA-0002 Pretoria, South Africa
Danga, Helga T.
Nel, Jacqueline M.
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Univ Pretoria, Phys Dept, ZA-0002 Pretoria, South AfricaUniv Pretoria, Phys Dept, ZA-0002 Pretoria, South Africa
Nel, Jacqueline M.
Meyer, Walter E.
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Univ Pretoria, Phys Dept, ZA-0002 Pretoria, South AfricaUniv Pretoria, Phys Dept, ZA-0002 Pretoria, South Africa
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Nelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South AfricaNelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South Africa
Botha, J. R.
Wagener, V.
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Nelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South AfricaNelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South Africa
Wagener, V.
Murape, D. M.
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Nelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South AfricaNelson Mandela Metropolitan Univ, Dept Phys, ZA-6031 Port Elizabeth, South Africa
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Univ Pretoria, Phys Dept, ZA-0002 Pretoria, South Africa
Univ Elimam Elmahdi, Fac Educ, Kosti White Nile, SudanUniv Pretoria, Phys Dept, ZA-0002 Pretoria, South Africa
Ali, Abdulraoof I. A.
Danga, Helga T.
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h-index: 0
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Univ Pretoria, Phys Dept, ZA-0002 Pretoria, South AfricaUniv Pretoria, Phys Dept, ZA-0002 Pretoria, South Africa
Danga, Helga T.
Nel, Jacqueline M.
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h-index: 0
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Univ Pretoria, Phys Dept, ZA-0002 Pretoria, South AfricaUniv Pretoria, Phys Dept, ZA-0002 Pretoria, South Africa
Nel, Jacqueline M.
Meyer, Walter E.
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Univ Pretoria, Phys Dept, ZA-0002 Pretoria, South AfricaUniv Pretoria, Phys Dept, ZA-0002 Pretoria, South Africa