@article{TEXTUAL,
      recid = {13427},
      author = {Dziobek-Garrett, Reynolds and Hilliard, Sachi and  Sriramineni, Shreya and Ambrozaite, Ona and Zhu, Yifei and  Hudak, Bethany M. and Brintlinger, Todd H. and Chowdhury,  Tomojit and Kempa, Thomas J.},
      title = {Controlling Morphology and Excitonic Disorder in Monolayer  WSe<sub>2</sub> Grown by Salt-Assisted CVD  Methods},
      journal = {ACS Nanoscience Au},
      address = {2023-08-22},
      number = {TEXTUAL},
      abstract = {Chemical synthesis is a compelling alternative to top-down  fabrication for controlling the size, shape, and  composition of two-dimensional (2D) crystals. Precision  tuning of the 2D crystal structure has broad implications  for the discovery of new phenomena and the reliable  implementation of these materials in optoelectronic,  photovoltaic, and quantum devices. However, precise and  predictable manipulation of the edge structure in 2D  crystals through gas-phase synthesis is still a formidable  challenge. Here, we demonstrate a salt-assisted  low-pressure chemical vapor deposition method that enables  tuning W metal flux during growth of 2D WSe<sub>2</sub>  monolayers and, thereby, direct control of their edge  structure and optical properties. The degree of structural  disorder in 2D WSe<sub>2</sub> is a direct function of the  W metal flux, which is controlled by adjusting the mass  ratio of WO<sub>3</sub> to NaCl. This edge disorder then  couples to excitonic disorder, which manifests as broadened  and spatially varying emission profiles. Our work links  synthetic parameters with analyses of material morphology  and optical properties to provide a unified understanding  of intrinsic limits and opportunities in synthetic 2D  materials.},
      url = {http://knowledge.uchicago.edu/record/13427},
}