Abstract
Exploring solar energy in the infrared range over 800nm is one of possible way to substantially increasing the photo to electrical transfer efficiancy over the 32% limit. Intermediate bands introduced by N and/or P type dopants may pave the way to utilizing the low energy solar photons. Experimental results are reported to demostrate the trace-amount W-doping might significantlly changed the band structure of TiO2 nanoparticals and enhansed the performance of DSCs and even PSCs.
© 2015 Optical Society of America
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