Study on Far-Infrared Reflectivity Spectra of Microwave Dielectric Ceramic (RbBi)1/2MoO4
WANG Qiu-ping1,2, LIU Han-chen1
1. School of Science, Xi’an Polytechnic University, Xi’an 710048, China 2. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China
Abstract：The (RbBi)1/2MoO4 ceramic was prepared via solid state reaction method. The room temperature far-infrared reflectivity spectra were measured and 15 vibration modes were observed. Kramers-Kronig (K-K) relationship was employed to fit infrared spectra. The optical frequency permittivity ε∞ is equal to 2.17 for the dielectric materials, and the extrapolated value to microwave frequency (at about 9 GHz) is 20.56 and it is slightly smaller than the actual measured value ~21.4. The calculated value of quality factor (Q×f) is 11 790 GHz, which is higher than the actual measured value ~6 200 GHz, and it can be deduced that the quality factor of the (RbBi)1/2MoO4 ceramic material has large room for improvement.
王秋萍1,2，刘汉臣1 . (RbBi)1/2MoO4陶瓷微波介电性能的远红外反射谱研究 [J]. 光谱学与光谱分析, 2012, 32(09): 2382-2384.
WANG Qiu-ping1,2, LIU Han-chen1. Study on Far-Infrared Reflectivity Spectra of Microwave Dielectric Ceramic (RbBi)1/2MoO4. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(09): 2382-2384.
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