Ofori, Frank Agyemang A Simple Method of Electrospun Tungsten Trioxide Nanofibers with Enhanced Visible-Light Photocatalytic Activity. [electronic resource] - Nano-micro letters 2015 - 291-297 p. digital Publication Type: Journal Article ISSN: 2150-5551 Standard No.: 10.1007/s40820-015-0042-8 doi