@inproceedings{922f842727844c5bb2025d794afcea18,
title = "Electrical and optical properties of Mn1.56Co 0.96Ni0.48O4 films for infrared detection",
abstract = "Mn1.56Co0.96Ni0.48O4 films with spinel structure for infrared detection are prepared on Al2O 3 substrate by chemical solution deposition method. The resistance vs temperature (R-T) characteristics at 130∼304 K temperature range and infrared transmission spectrum (1-10 μm) are measured and temperature coefficients of resistance (TCR) are calculated. The conduction process can be explained well by hopping conduction. At low temperature nearest neighbor hopping (NNH) mechanism fits the data well, while at high temperature, variable range hopping (VRH) mechanism dominates the system, and this transition temperature is at about 200 K. The value of TCR is about -3.73\% K-1 at 300 K. Mn1.56Co0.96Ni0.48O4 films exhibit a strong absorption around 2μm which is considered to be corresponding to the gap of energy bands showed by infrared transmission spectrum. The band gap obtained from the transmission spectrum data using the Tauc's law is ∼0.567 eV.",
keywords = "Hopping conduction, Infrared detection, Negative temperature coefficients, Spinel, Transition metal oxides",
author = "Jing Wu and Huang, \{Zhi Ming\} and Yun Hou and Gao, \{Yan Qing\} and Chu, \{Jun Hao\}",
year = "2009",
doi = "10.1117/12.833507",
language = "英语",
isbn = "9780819476623",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "International Symposium on Photoelectronic Detection and Imaging 2009 - Material and Device Technology for Sensors",
note = "International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors ; Conference date: 17-06-2009 Through 19-06-2009",
}