Investigation of Multi-Alkali Photocathode

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- Investigation of Multi-Alkali Photocathode
- Acta Electronica Sinica Issue 5, Pages: 27-31(1986)
- 作者机构：
  
  北京工业学院南京271信箱
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1986
- 稿件说明：
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[1]高鲁山,李朝木.四碱光阴极的研究[J].电子学报,1986(05):27-31.

Qao Lu-shan. Investigation of Multi-Alkali Photocathode[J]. Acta Electronica Sinica, 1986, (5): 27-31.
[1]高鲁山,李朝木.四碱光阴极的研究[J].电子学报,1986(05):27-31. DOI：

Qao Lu-shan. Investigation of Multi-Alkali Photocathode[J]. Acta Electronica Sinica, 1986, (5): 27-31. DOI：

本文利用改进了的新工艺制备的四碱光电阴极[Rb

Cs]Na

KSb

具有灵敏度高、热发射低和重复性好等优点

特别是从绿光到红外的光谱响应都得到了明显的改善。文中提出的四碱光阴极的表面能带结构模型

对上述的实验结果给予了比较满意的解释。

The multi-alkali photocathode （Rb

Cs） Na2KSb films are studied. The photo-cathode manufactured by means of a new technology has many advantages over the trialkali photocathode

such as higher photosensitivity

better reproducibility

less thermal emission and

particularly

much improved response to light in the green-red-infrared portion of the spectrum

photoelectron-emissive mechanism of the photocathode films are discussed and a new strcture model of energy bands at surface of the of the （Rb

Cs） Na2KSb is proposed. The use of the model to explain the result of the experiment is satisfactory.

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