PERC meets self-aligned selective emitter technologies based on inkjet printing and silver less plating

该项目的重点是在钝化发射极和后接触（PERC）硅太阳能电池中开发选择性发射极的潜力。与具有均匀发射极的PERC太阳能电池相比，具有选择性发射极的PERC太阳能电池预测转换效率至少绝对提高1.0%，因此，将大大增加PV系统的产量，降低电力的平准化成本和总拥有成本。因此，Fraunhofer ISE, Meyer Burger， RENA和Sun Chemical将他们在太阳能电池加工，机器工程和材料合成领域的互补能力结合在一起，以评估基于稳步推进的喷墨和电镀技术的自校准工艺技术，从而以低银消耗为目标。感兴趣的技术将在PV-TEC或类似的中试规模上得到应用、验证和示范。所述技术的高度创新，PERC太阳能电池中选择性发射器的潜力，以及低成本光伏制造的潜力，以及技术准备水平-范围在TRL4和6之间-导致结论，该项目的结果将为光伏市场提供具有竞争力的太阳能电池技术，具有快速转移到光伏晶圆厂的高潜力。这将为所有相关的欧洲利益相关者和股东带来高额利益。

The project focus is set on the exploitation of selective emitter’s potential in passivated emitter and rear contact (PERC) silicon solar cells.Compared to PERC solar cells with an homogeneous emitter, those with selective emitter predict a significant increase in conversionefficiency of at least 1.0% absolute and, in consequence, would drastically increase the yield of PV systems, decrease the levelized cost ofelectricity, and the total cost of ownership. Therefore, Fraunhofer ISE, Meyer Burger, RENA, and Sun Chemical mix together theircomplementary competences in the fields of solar cell processing, machine engineering, and material synthesis in order to evaluateself-aligned process techniques based on the steadily advancing inkjet and plating technology, whereby low Ag consumption is aimed at.The techniques of interest will be applied, validated and demonstrated in the PV-TEC or comparable on pilot-line scale. The high innovationof the addressed technologies, the potential of selective emitters in PERC solar cells also with regard to low-cost PV-manufacturing, as wellas the technology readiness level – which ranges between TRL4 and 6 – lead to the conclusion that the project’s outcome will provide acompetitive solar cell technology for the PV-market with a high potential of being quickly transferred into PV-fabs, which would beconnected to a high benefit for all involved European stake- and shareholders.