Electronic and thermal properties of magnesium‐doped a‐Se films
Autor: | George Belev, Safa Kasap, Habib Mani, Dan Tonchev, Isha Dash |
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Rok vydání: | 2009 |
Předmět: | |
Zdroj: | physica status solidi c. 6 |
ISSN: | 1610-1642 1862-6351 |
Popis: | We have studied the effects of adding small amounts of Mg on the electrical and thermal properties of a-Se films. The addition of Mg in the ppm range has resulted in significant changes in the charge transport and stability. The doped samples have shown to be excellent n -like layers which have electron ranges much greater than hole ranges, μeτe ≫ μhτh. The n -like layers block the injection of holes from the positive electrode which results in a lower dark current in a-Se based X-ray detectors. The Differential scanning calorimetry studies have shown that a-Se doped with lower concentrations of Mg is more stable than samples with higher concentrations. (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
Databáze: | OpenAIRE |
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