Title :
Cloaking of metal contacts on solar cells
Author :
Schumann, M.F. ; Wiesendanger, S. ; Goldschmidt, J.-C. ; Bittkau, K. ; Paetzold, U.W. ; Sprafke, A. ; Wehrspohn, R.B. ; Rockstuhl, C. ; Wegener, M.
Author_Institution :
Karlsruhe Inst. of Technol. (KIT), Inst. of Appl. Phys., Karlsruhe, Germany
Abstract :
We design by transformation optics, fabricate by three-dimensional direct laser writing, and characterize experimentally polymer-based cloaks for 20 μm wide gold-wire contacts on a silicon wafer. The contact shadowing effect is reduced by 90%.
Keywords :
elemental semiconductors; gold; laser materials processing; optical cloaking; optical fabrication; polymers; semiconductor-metal boundaries; silicon; solar cells; Au-Si; Si; cloaking; contact shadowing effect; gold-wire contacts; metal contacts; polymer-based cloaks; silicon wafer; size 20 mum; solar cells; three-dimensional direct laser writing; transformation optics; Gold; Optical device fabrication; Photovoltaic cells; Polymers; Silicon; Wires;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
