Cesium and bromine doping into hexagonal boron nitride
Cesium and bromine doping into hexagonal boron nitride
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六方氮化硼中掺杂铯和溴
DOI：
10.1557/jmr.1986.0685
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发表时间：
1986
影响因子：
2.7
通讯作者：
M. Dresselhaus
中科院分区：
文献类型：
--
作者：
M. Sakamoto;J. S. Speck;M. Dresselhaus
采用双区法研究了六方氮化硼（BN）与Cs和Br2形成层间化合物的可能性。Cs和Br_2掺杂BN仅使BN的重量增加百分之几。电子顺磁共振（EPR）谱信号被Cs掺杂显著改变，这归因于Cs原子与BN中的自旋共振中心（N空位）之间的反应;而Br_2掺杂对EPR谱没有影响。然而，Mugiya及其同事报道的深蓝色Cs-BN复合物没有用双区法获得。虽然没有证据表明，在BN中观察到系统的嵌入反应，在石墨基质材料相比，插入岛诱导Cs原子的引入建议的透射电子显微镜（TEM）观察。
Using a two-zone method, the possible formation of an intercalation compound of hexagonal boron nitride (BN) with Cs and Br_2 was investigated. Only a few percent weight increase was observed by doping BN with Cs and Br_2. The electron paramagnetic resonance (EPR) signal was significantly modified by Cs doping, which is attributed to the reaction between the Cs atoms and spin resonance centers (N vacancies) in BN; no change in the EPR spectra was observed with Br_2 doping. However, the deep blue colored Cs-BN complex reported by Mugiya and co-workers was not obtained with the two-zone method. Though no evidence of systematic intercalation reaction in BN was observed in contrast to graphite host materials, intercalation islands induced by the introduction of Cs atoms were suggested by the transmission electron microscopy (TEM) observations.