%0 Journal Article %T Spatially resolved multicolor CsPbX 3 nanowire heterojunctions via anion exchange %A Dou, Letian %A Lai, Minliang %A Kley, Christopher S. %A Yang, Yiming %A Bischak, Connor G. %A Zhang, Dandan %A Eaton, Samuel W. %A Ginsberg, Naomi S. %A Yang, Peidong %A , %J Proceedings of the National Academy of Sciences %@ 0027-8424 %D 2017-06-26 %I Proceedings of the National Academy of Sciences %~ DeepDyve