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Influence of front electrode and back reflector electrode on the performances of microcrystalline silicon solar cells

机译:正面电极和背面反射器电极对微晶硅太阳能电池性能的影响

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摘要

In this paper, a series of microcrystalline silicon solar cells were prepared on different front electrodes and back reflector electrodes by very high frequency plasma enhanced chemical vapor deposition (VHF-PECVD). Front electrodes were mainly focused on SnO2/ZnO and wet-etched ZnO substrates. Back reflector electrodes were Al, ZnO/Al and ZnO/Ag/Al. The results indicated that the performances of microcrystalline silicon solar cells strongly depended on the structure of the front electrode and back reflector electrode. The front electrode influenced all characteristic parameters of solar cells, such as fill factor (FF), open circuit voltage (V-oc) and short circuit current density (J(sc)). However, the back reflector electrode mainly influenced the J(sc) of solar cells. As a result, the front electrodes and back reflector electrodes increased conversion efficiency of microcrystalline silicon solar cells with 1-2%. Finally, microcrystalline silicon solar cells with 9.2% conversion efficiency were prepared by VHF-PECVD (FF = 63%, V-oc = 0.55 V, J(sc) = 26.5 mA/cm(2)). (c) 2006 Elsevier B.V. All rights reserved.
机译:在本文中,通过极高频等离子体增强化学气相沉积(VHF-PECVD)在不同的前电极和后反射器电极上制备了一系列微晶硅太阳能电池。前电极主要集中在SnO2 / ZnO和湿法蚀刻的ZnO衬底上。背面反射器电极为Al,ZnO / Al和ZnO / Ag / Al。结果表明,微晶硅太阳能电池的性能很大程度上取决于前电极和后反射器电极的结构。前电极影响了太阳能电池的所有特性参数,例如填充系数(FF),开路电压(V-oc)和短路电流密度(J(sc))。但是,后反射电极主要影响太阳能电池的J(sc)。结果,前电极和后反射器电极将微晶硅太阳能电池的转换效率提高了1-2%。最后,通过VHF-PECVD(FF = 63%,V-oc = 0.55 V,J(sc)= 26.5 mA / cm(2))制备具有9.2%转换效率的微晶硅太阳能电池。 (c)2006 Elsevier B.V.保留所有权利。

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