Global to push GA events into
skip to main content

Title: Enhanced bulk heterojunction devices prepared by thermal and solvent vapor annealing processes

A method of preparing a bulk heterojunction organic photovoltaic cell through combinations of thermal and solvent vapor annealing are described. Bulk heterojunction films may prepared by known methods such as spin coating, and then exposed to one or more vaporized solvents and thermally annealed in an effort to enhance the crystalline nature of the photoactive materials.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1393176
Assignee:
University of Southern California GFO
Patent Number(s):
9,768,402
Application Number:
13/080,759
Contract Number:
FG36-08GO18022
Resource Relation:
Patent File Date: 2011 Apr 06
Research Org:
Univ. of Southern California, Los Angeles, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY

Other works cited in this record:

Solvent annealing process for forming a thin semiconductor film with advantageous properties
patent, November 2001

Organic devices having a fiber structure
patent, March 2007

Method for treating a photovoltaic active layer and organic photovoltaic element
patent, December 2007

Device and method for organic vapor jet deposition
patent, May 2010

Solvent vapor annealing of organic films
patent, November 2010

Photovoltaic devices with conductive barrier layers and foil substrates
patent, June 2012

Derivatized fullerene-based dopants for organic semiconductors
patent, April 2013

Semiconducting polymers
patent, May 2013

Solar cell with conductive material embedded substrate
patent, May 2013

Increased open-circuit-voltage organic photosensitive devices
patent-application, December 2007

Impact of Solvent Vapor Annealing on the Morphology and Photophysics of Molecular Semiconductor Thin Films
journal, June 1998
  • Conboy, John C.; Olson, Eric J. C.; Adams, David M.
  • The Journal of Physical Chemistry B, Vol. 102, Issue 23, p. 4516-4525
  • DOI: 10.1021/jp980969y

“Solvent Annealing” Effect in Polymer Solar Cells Based on Poly(3-hexylthiophene) and Methanofullerenes
journal, July 2007
  • Li, G.; Yao, Y.; Yang, H.
  • Advanced Functional Materials, Vol. 17, Issue 10, p. 1636-1644
  • DOI: 10.1002/adfm.200600624

Organic Photovoltaic Cells Based On Solvent-Annealed, Textured Titanyl Phthalocyanine/C60 Heterojunctions
journal, June 2009
  • Placencia, Diogenes; Wang, Weining; Shallcross, R. Clayton
  • Advanced Functional Materials, Vol. 19, Issue 12, p. 1913-1921
  • DOI: 10.1002/adfm.200801723

Efficient Squaraine-Based Solution Processable Bulk-Heterojunction Solar Cells
journal, December 2008
  • Silvestri, Fabio; Irwin, Michael D.; Beverina, Luca
  • Journal of the American Chemical Society, Vol. 130, Issue 52, p. 17640-17641
  • DOI: 10.1021/ja8067879

Efficient Solution-Processed Photovoltaic Cells Based on an Anthradithiophene/Fullerene Blend
journal, July 2007
  • Lloyd, Matthew T.; Mayer, Alex C.; Subramanian, Sankar
  • Journal of the American Chemical Society, Vol. 129, Issue 29, p. 9144-9149
  • DOI: 10.1021/ja072147x

The Role of Mesoscopic PCBM Crystallites in Solvent Vapor Annealed Copolymer Solar Cells
journal, February 2009
  • Bull, Tricia A.; Pingree, Liam S. C.; Jenekhe, Samson A.
  • ACS Nano, Vol. 3, Issue 3, p. 627-636
  • DOI: 10.1021/nn800878c

Temperature-Enhanced Solvent Vapor Annealing of a C3 Symmetric Hexa- peri -Hexabenzocoronene: Controlling the Self-Assembly from Nano- to Macroscale
journal, January 2009
  • Treossi, Emanuele; Liscio, Andrea; Feng, Xinliang
  • Small, Vol. 5, Issue 1, p. 112-119
  • DOI: 10.1002/smll.200801002

Efficient, Ordered Bulk Heterojunction Nanocrystalline Solar Cells by Annealing of Ultrathin Squaraine Thin Films
journal, September 2010
  • Wei, Guodan; Lunt, Richard R.; Sun, Kai
  • Nano Letters, Vol. 10, Issue 9, p. 3555-3559
  • DOI: 10.1021/nl1018194

Solution-Processed Squaraine Bulk Heterojunction Photovoltaic Cells
journal, March 2010
  • Wei, Guodan; Wang, Siyi; Renshaw, Kyle
  • ACS Nano, Vol. 4, Issue 4, p. 1927-1934
  • DOI: 10.1021/nn100195j

Similar records in DOepatents and OSTI.GOV collections: