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The dimensions and quality of the screen printed lines are determined by the screen definitions, the printing machine parameters, the paste characteristics and the cell surface characteristics. For solar cell processing much of the technology is inherited and adapted from the PCB industry [1]. The technological status of screen development and printing machine parameters are not limiting factors. For a dedicated printing machine operator it is feasible to combine the different, and generally contradictory, parameters and come to optimized results. The paste characteristics, however, are the least controlled by the user, and yet they have an enormous impact on not only the printing behaviour, quality and final line definition, but also on the fired film density and optimum contact of the particles with the silicon. A limiting factor is the availability of pastes with optimal printing characteristics. Up to now commercial solar pastes have been developed for their contacting and electrical behaviour, rather than to accommodate present printing requirements. |
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wypward(金币+1):谢谢参与 2010-09-21 18:35:54
wypward(金币+1):谢谢参与 2010-09-21 18:35:54
| 屏幕打印尺寸和质量是由屏幕清晰度，打印机参数，印花浆特性和电池表面特性决定的。对于多种技术中使用的太阳浆是传统技术的继承，并由PCB工业改进。屏幕改进和打印机参数的技术地位不是限制因素。对于一个专职的打印机操作人员来说，将不同的与通常矛盾的参数结合以优化结果是可行的。印花浆特性是最少被使用者控制的，但是它们不仅对打印方式，质量和最后的线的笼括有显著影响，而且影响喷涂面的密度和颗粒物与硅的最佳接触面。限制因素是具有最佳打印特性的印花浆的实用性。目前，由于其接触和电学行为，市售的太阳浆体被发展。而不是适应目前的印染需求。 |
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3楼2010-09-25 19:35:19
