Electronic and thermal properties of magnesium‐doped a‐Se films

Autor: George Belev, Safa Kasap, Habib Mani, Dan Tonchev, Isha Dash
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