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首页> 外文会议>Laser-based micro- and nanopackaging and assembly VI >Laser sintering of Si and Ge nano- and microparticle films toward solar cells by solution process
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Laser sintering of Si and Ge nano- and microparticle films toward solar cells by solution process

机译：通过溶液法将硅和锗纳米和微粒薄膜朝太阳能电池激光烧结

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摘要

The laser sintering of Si particle films was studied toward a wet process manufacturing of a Si solar cell. Si particle films were formed by spin-coating from the dispersion solutions of Si nano- and microparticles in an organic solvent. The I-V characteristics of a schottky diode solar cell consisting of a Si particle film and an Au-coated PET film showed rectifying behavior and photovoltaic effect. With the aim of improving the physical and electrical properties of the Si particle films, the laser sintering of the Si particle films was investigated by changing the wavelength of laser beam using CW DPSS lasers (457, 1064 nm). In the preparation of the Si particle film, organosilicon nanocluster (OrSi) and organogermanium nanocluster (OrGe) were used as a binder polymer. The structural changes of the Si particle by laser irradiation were studied by micro-Raman spectroscopy. The peak position of the Raman band remarkably depended on the laser wavelength. The IR laser (1064 nm) sintering with a large penetration depth gave the higher quality crystal Si film than that prepared by visible laser (457 nm) sintering judging from the shift of the LO and TO phonon band from 520 cm'1 of single crystal Si.
机译：研究了Si颗粒膜的激光烧结以用于Si太阳能电池的湿法制造。通过在有机溶剂中从硅纳米粒子和微米粒子的分散溶液中旋涂形成硅粒子膜。由Si颗粒膜和Au涂层的PET膜组成的肖特基二极管太阳能电池的I-V特性显示出整流行为和光伏效应。为了改善Si粒子膜的物理和电学性质，通过使用CW DPSS激光器（457，1064nm）改变激光束的波长来研究Si粒子膜的激光烧结。在Si颗粒膜的制备中，有机硅纳米簇（OrSi）和有机锗纳米簇（OrGe）用作粘合剂聚合物。通过显微拉曼光谱研究了激光辐照下硅颗粒的结构变化。拉曼带的峰值位置明显取决于激光波长。从LO和TO声子带从520 cm'1的单晶位移来看，具有较大穿透深度的IR激光（1064 nm）烧结产生的晶体Si膜比可见激光（457 nm）烧结的晶体Si膜的质量更高。硅。

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