“…Based on the vapor transport reactions, quantitative control of doping is also possible, such as synthesizing single crystal nanowires and bulk crystal. [2][3][4] Due to the superiority of vapor transport reaction as a universal method in solid state chemistry and materials sciences, all manners of nanomaterials differing in dimensionality have been successfully synthesized and investigated both in growth kinetics and potential applications, including bulk crystals, [4][5][6][7][8][9][10][11][12][13][14][15] thin lms, [16][17][18][19][20][21][22][23][24][25][26][27][28][29] nanowires, nanobelts 77,78 and nanorods. 79,80 Generally, nanostructured materials can be fabricated by two different approaches, one is the bottom-up approach which means assembling tiny into large, the other one is top-down approach which implies cutting big into small.…”