进口二维半导体单晶>钽镍硫晶体Ta2NiS5
 
钽镍硫晶体Ta2NiS5
 
货号: 100842 规格: cm级别针状晶体 价格: 询价
CAS号:
编号: MK10842
包装: 原包装进口
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 样品名称钽镍硫晶体Ta2NiS5
 性质激子绝缘体
带隙

 0.39 eV

 参数

 纯度99.995%

尺寸:cm 针状晶体

 应用 半导体电子器件,传感器-探测器,非线性光学,STM-AFM实验,光学器件等研究
 其他信息

 详情请发邮件至:mknano@126.com

钽镍硫晶体Ta2NiS5照片:


原子结构模型:


Raman光谱:


Properties of Ta2NiS5 crystals


Product Description

Ta2NiS5 is a narrow gap semiconductor (Eg~0.39 eV) with suspected exciton insulator behavior like observed in its sister compound Ta2NiS5. Excitonic insulators are novel material systems exhibiting correlated electronic phases. Condensation of excitons to its ground state happens for a specific condition when the exciton binding energy (Eb) is larger than the band gap (Eg). The excitonic condensation in semiconductors occurs through a Bose-Einstein condensation process, while the condensation in semimetals occurs through the Bardeen-Cooper-Schrieffer (BCS) process.  The spontaneous band hybridization caused by the Coulomb attraction between the orthogonal conduction (electron) and valence (hole) bands opens the bandgap and drives the system into the insulating state

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