NOVA-CELL - Non Vacuum deposition & metallisation of CIGS solar cells

英国有大量的建成区，可以用来开发大规模的光伏装置。然而，尽管建设集成光伏的固有优势，由于高投资成本和缓慢的回收期，无补贴的光伏吸收仍然有限。与传统的硅太阳能电池相比，薄膜光伏电池具有显著的优势，包括：(i)易于安装，（ii）无需钻顶或使用复杂的固定装置即可固定电池，（iii）电池效率（非最佳高度）和（iv）重量（约为晶体硅重量的30%）。CIGS太阳能电池以21.7%的创纪录效率提供了可观的前景。然而，由于电池固有的高成本/W， cigs技术的广泛采用受到限制。NOVA-Cell将通过一项可行性研究来评估新型非真空化学喷涂辅助气相沉积CIGS的应用，以取代现有的高成本真空技术，从而解决CIGS电池的成本/W问题。该项目还将研究新型ESJET打印精细结构手指和母线金属化铜的应用，以取代昂贵的丝网印刷银糊，使电池效率提高0.6%，总成本降低10.6% /W。

The UK has substantial built up areas which can be utilised to develop large scale installations of PV. Howeverdespite the inherent advantages of Building integrated PV, unsubsidised PV uptake is still limited due to thehigh investment costs & slow payback timescales. Thin film PV offers significant advantages over conventionalc-Si solar cells for BIPV, including; (i) Ease of installation, (ii) ability to afix cells without drilling roofs or usingcomplex fixturing, (iii) cell efficiency (at non optimal elevations) & (iv) weight (~30% the weight of crystalline Si).CIGS solar cells offer considerable promise with record efficiecnies of 21.7%. However, widespread uptake ofCIGS technologies is limited due to the inherent high cost/W of the cells. NOVA-Cell will address the cost/W ofCIGS cells by undertaking a feasiblity study to assess the application of novel non-vacuum chemical sprayassisted vapour deposition of CIGS to replace exisitng high cost vacuum based technologies. The project willalso study the application of novel ESJET printing of fine structure fingers & busbar Cu metallisation to replaceexpensive screen printed Ag pastes to increase cell efficiency by 0.6% & reduce the overall cost/W by 10.6%.