Enhanced Nitrogen Doping in TiO2 Nanoparticles Burda, Clemens ; Lou, Yongbing ; Chen, Xiaobo ; Samia, Anna C. S. ; Stout, John ; Gole, James L. Abstract Publication: Nano Letters Pub Date: August 2003 DOI: 10.1021/nl034332o Bibcode: 2003NanoL...3.1049B