禁带

On the basis of photovoltaic signal of cubic GaN, we not only obtained the bandgap of cubic GaN, but also obtained the minority carrier diffusion length of cubic GaN which is in the range of 0.32 and 0.14μm.

通过对光伏曲线的研究了，提出了一种测量禁带宽度的方法，并测量出n型GaN的少子扩散长度在0.14μm和0.32μm之间，与六方相GaN的报道结果一致。

Perovskite oxides (ABO3) has stable structure and high photocatalytic activity ,further morea catalyst which has more narrow band gap can be synthesized and can absorb more solar energy by altering the type of A and B.

钙钛矿型氧化物(ABO_3)不但具有结构稳定，催化活性高等特点，而且可以通过改变A、B原子的类型制备出禁带宽度较窄，能大量吸收太阳光的催化剂。

The electric and semiconductor properties were studied by four-probe method, and the results show that the Cu3N thin films are n-type semiconductor.

运用四探针法测量了薄膜的电学和半导体特性，证明了实验制备得到的Cu3N薄膜是一种n型半导体，禁带宽度约为1。

Zinc Oxide is an II-VI n-type compound semiconductor with direct wide-band gap, and a hexagonal wurtzite structure.

氧化锌作为一种多功能的Ⅱ～Ⅵ族宽禁带化合物n型半导体材料，具有六方纤锌矿结构。

It is expected that the wide bandgap semiconductor power devices would resolve the problems of los output power, low efficiency and limited operation frequency of first and second generation power devices which can nog meet the electronic equipment requirements of modem radar, ECM and communication.

人们寄希望于宽禁带半导体功率器件来解决第一代、第二代功率器件的输出功率低、效率低和工作频率有局限性以至于无法满足现代雷达、电子对抗和通信等电子装备需求等方面的问题。

It is convenient for us to get properties of photonic crystal without large numerical calculation.

于是，我们认为光子禁带的形成与单个周期的特性有着直接的关系。

The effects of the position and the optical thickness of the defect layer on the defect modes was analyzed.

结果表明，在准周期结构光子晶体引入缺陷，光子晶体禁带中也产生了缺陷模；随着掺杂缺陷层位置和光学厚度的变化，缺陷模的位置和共振透射峰也随之变化。

Cuprous oxide(Cu_2O) is an important p-type semiconductor with a direct band gap of 2 eV,and has wide applications in solar energy conversion,gas sensors and catalysis due to its unique optical and electronic properties.

氧化亚铜是一种重要的p型半导体材料，禁带宽度为2 eV，具有独特的光学和电学性质，在太阳能转换、气敏器件和催化等领域具有较大的应用价值。

Analysis of difference between the FDTD method and the plane wave expansion method.

FDTD法与平面波展开法在光子禁带计算中的差异分析。

A revised plane wave expansion method for calculating the band structure of photonic crystals is presented.

采用一种改进的平面波展开法，运用一种有效的设计二维各向异性光子晶体的方法，在低频和高频区域内获得了具有较大禁带的两种二维光子晶体。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。