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Title: Secondary treatment of films of colloidal quantum dots for optoelectronics and devices produced thereby

A method of forming an optoelectronic device. The method includes providing a deposition surface and contacting the deposition surface with a ligand exchange chemical and contacting the deposition surface with a quantum dot (QD) colloid. This initial process is repeated over one or more cycles to form an initial QD film on the deposition surface. The method further includes subsequently contacting the QD film with a secondary treatment chemical and optionally contacting the surface with additional QDs to form an enhanced QD layer exhibiting multiple exciton generation (MEG) upon absorption of high energy photons by the QD active layer. Devices having an enhanced QD active layer as described above are also disclosed.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1129017
Assignee:
Alliance for Sustainable Energy, LLC (Golden, CO) NREL
Patent Number(s):
8,685,781
Application Number:
13/187,276
Contract Number:
AC36-080028308
Resource Relation:
Patent File Date: 2011 Jul 20
Research Org:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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