Photovoltaic effect and photorefraction in LiNbO3: Mg crystals

Autor: Wang Huafu, Wang Hong, Wang Liang, Zhu Yaping, Tang Yan-seng, Wen Jinke
Rok vydání: 1990
Předmět:
Zdroj: Ferroelectrics. 101:299-301
ISSN: 1563-5112
0015-0193
DOI: 10.1080/00150199008016530
Popis: With relation to photorefraction, it has been found that higher light irradiation intensities can be withstood by Li-rich LiNbO3:Mg (5 mol%) than by the congruent LiNbO3:Mg (5 mol%). The photoconductivity of the former is an order of magnitude larger than that of the latter. Doping with 0.1 wt% Fe in Li-rich LiNbO3:Mg (5 mol%) does not distinctively alter its ability to resist photorefraction. The photovoltaic currents of Li-rich LN:Mg:Fe and Li-rich LN:Mg are nearly equal and are two orders of magnitude smaller than that of LN:Fe. The photoconductivity of Li-rich LN:Mg:Fe is an order of magnitude smaller than that of Li-rich LN:Mg and is much larger than that of LN:Fe.
Databáze: OpenAIRE