title: Perfect orientation ordered in-situ one-dimensional self-assembly of Mn-doped PbSe nanocrystals.
abstract: We demonstrate a novel approach for the large-scale, shape-controlled synthesis of one-dimensional (1D) corrugated nanoarrays of Pb(1-x)Mn(x)Se nanocrystals (0.002 < or = x < or = 0.008) through an in-situ self-assembly without using either capping polymer or ionic surfactant. The one-step-prepared 1D nanoarrays exhibit a well-defined morphology, single-crystal orientation, and clean surface without amorphous contamination. The average diameter of the 1D nanoarrays can be controlled and varied from <10 to 80 nm by finely tuning the assembly temperature and the growth time. Four growth models were suggested to explain the in-situ self-assembly processes based on the fundamental building blocks of octahedral nanocrystals by sharing [111] facets.
authors.affiliation: Department of Chemistry and Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148, USA.
authors.forename: Weigang
authors.initials: W
authors.lastname: Lu
authors.forename: Puxian
authors.initials: P
authors.lastname: Gao
authors.forename: Wen Bin
authors.initials: WB
authors.lastname: Jian
authors.forename: Zhong Lin
authors.initials: ZL
authors.lastname: Wang
authors.forename: Jiye
authors.initials: J
authors.lastname: Fang