skip to main content

DOE PAGESDOE PAGES

Title: Towards bulk syntheses of nanomaterials: a homeostatically supersaturated synthesis of polymer-like Bi 2S 3 nanowires with nearly 100% yield and no injection

This article reports the implementation of a one-pot strategy for the synthesis of polymer-like Bi 2S 3 nanowires from supersaturated precursors. These conditions result in (i) a homeostatically regulated supersaturation of the growing phase during most of the reaction, (ii) a nearly 100% conversion of the limiting reagent, and (iii) an improved colloidal stability and polydispersity of the product (when compared to the hot-injection product) that allows the identification of three new exciton transitions in the absorption spectrum (one of them, importantly, being a weakly absorbing ground state at 1.64 eV). Three different commercial sources of ligands do not yield significantly different conversion rates. Scalability is further improved by lack of stirring after the initial stage of reaction and a lower reaction temperature (90 °C).
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3]
  1. Iowa State Univ. of Science and Technology, Ames, IA (United States). Dept. of Materials Science & Engineering
  2. (United States). Dept. of Chemical & Biological Engineering
  3. (United States)
Publication Date:
Report Number(s):
IS-J-9197
Journal ID: ISSN 2046-2069; RSCACL
Grant/Contract Number:
AC02-07CH11358
Type:
Accepted Manuscript
Journal Name:
RSC Advances
Additional Journal Information:
Journal Volume: 6; Journal Issue: 114; Journal ID: ISSN 2046-2069
Publisher:
Royal Society of Chemistry
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1347902