英文摘要翻译

The lead (PbI2 iodine) material is an n-type semiconductor materials, the probe into energy high resolution, linear response, pulse rise time is short, simple structure, high efficiency and low detection, convenient operation, in nuclear physics experiment and research aspects are widely used in nuclear science and technology, and many of the application of gas detector and instead of the counter. With its high conductivity, high visible light transmittance and infrared reflectance and its good performance, PbI2 film photoelectric will get more extensive application.

In this paper PbI2 crystal structure, properties, applications and JT - 500 beam evaporation system basis, summarizes the electron beam evaporation PbI2 preparation principle and method of the film. And the electron beam evaporation process, setting and process parameters, PbI2 preparation in glass substrate, a detailed study of the film samples analyzed under different temperatures of preparation PbI2 film crystal structure, uv-vis spectra (UV) light through the luminescence (PL) spectrum property.

X-ray diffraction (XRD) analysis results show that the peak of XRD PbI2 film, and sharp diffraction PbI2 belongs to the sample characteristic peak, less impurity content, structure is complete. Ultraviolet (UV) visible through spectral analysis results show that, in 300nm ~ 500nm PbI2 film when the minimum transmission wave direction, then to rise dramatically and transmission rate increased with the temperature, the absorption wavelength edge "blue shift", the wider, Photoluminescence spectroscopy (PL) PbI2 analysis shows that the film photoluminescence from freedom, the excitation induced polarization state induced polarization, and the son of the radiation effect of yuan composite warp.

英语九级水平，很专业，相信我。

应该明确一点说，碘不是半导体

所谓半导体是指晶体满带和导带有能级差，但能量相差不到3eV的

而碘晶体能级差已大于5eV，属于绝缘体

至于用元素周期表推论，是不太准确的

实际还是要以实验为依据

以上数据是有表可查的

甲胺铅碘化学式是CH3NH3PbI3

可用作全固态钙钛矿敏化太阳能电池的敏化剂，由CH3NH2、PbI2及HI为原料合成，回答下列问题：(1)制取甲胺CH3NH2的反应为是一个可逆的过程，以甲醇蒸气、氨气为原料合成，另一产物为水蒸气。已知该反应中相关化学键的键能数据如下：

共价键

C—O

H—O

N—H

C—N

键能/(kJ/mol)

351

463

393

293

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