The back reflector of back etching solar cell was flat which led the low reflectivity of long wave light and so the current was not so high.
背腐蚀法得到电池的背反射器平坦,长波反射后的光程减小,反射率降低,电流降低。
·2,447,543篇论文数据，部分数据来源于NoteExpress
While the majority of shells printed in this way are going to be simply for a unique colour, or to facilitate a design or etching on the back side of the smartphone, there are going to be some outlandish designs and ideas put into practice.
FORBES: What Will The 3D Printing Crowd Do With Nokia's Templates For The Lumia 820?
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