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Title: An in-situ phosphorus source for the synthesis of Cu 3P and the subsequent conversion to Cu 3PS 4 nanoparticle clusters

The search for alternative earth abundant semiconducting nanocrystals for sustainable energy applications has brought forth the need for nanoscale syntheses beyond bulk synthesis routes. Of particular interest are metal phosphides and derivative I-V-VI chalcogenides including copper phosphide (Cu 3P) and copper thiophosphate (Cu 3PS 4). Herein, we report a one-pot, solution-based synthesis of Cu 3P nanocrystals utilizing an in-situ phosphorus source: phosphorus pentasulfide (P 2S 5) in trioctylphosphine (TOP). By injecting this phosphorus source into a copper solution in oleylamine (OLA), uniform and size controlled Cu 3P nanocrystals with a phosphorous-rich surface are synthesized. The subsequent reaction of the Cu 3P nanocrystals with decomposing thiourea forms nanoscale Cu 3PS 4 particles having p-type conductivity and an effective optical band gap of 2.36 eV.
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
Journal ID: ISSN 0884-2914; KC0403020
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Journal of Materials Research
Additional Journal Information:
Journal Name: Journal of Materials Research; Journal ID: ISSN 0884-2914
Materials Research Society
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
14 SOLAR ENERGY; nanoparticles; Cu3P; copper phosphate; solar conversion; Center for Functional Nanomaterials
OSTI Identifier: