中德pv會(huì)議(英利新能源)太陽能光伏專用資料很有用的-預(yù)覽頁
【正文】 n Solar Cells 4. Processing Technology of Metal Stencils 5. LaserProcessed SingleLevel amp。 2. Simplicity of processing sequence. Disadvantages: 1. Relatively wider finger width (~150 um), leading to higher shading loss (~10%)。 2. Pretty high heighttowidth aspect ratio (as high as 5), leading to lower resistive losses, higher FF。 2. Relatively high heighttowidth aspect ratio (~), leading to lower resistive losses, higher FF。 PV Conference 1. Mask fabrication 2. Pattern alignment Key Techniques 2021 SNEC International Solar amp。m 35 181。 PV Conference a stencilprinted finger amp。 PV Conference Doublelevel Busbar bridge Doublelevel Bridges between Finger amp。 (b) the clean grooves after laser scribing and chemical etching. Oxide Single scribing Island (a) Oxide Formed wider groove (b) Features amp。 PV Conference 3. Calculate the translation and rotation with respect to the print nest r θ Alignment 2021 SNEC International Solar amp。 PV Conference Finger Profile: ~50 181。m wide amp。 PV Conference Cell Results amp。 Best Cell IV Curve 619 4 245 Average 625 4 245 Best cell ? (%) FF (%) Jsc (mA/cm2) Voc (mV) Area (cm2) W (181。 PV Conference ? Laser cutting and chemical etching suitable for stencil fabrication ? Both single amp。 PV Conference Thanks for your attention Yingli Solar— Driving the Futur
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