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Fibers 2015, 3(2), 173-183; doi:10.3390/fib3020173

Synthesis of Co-Electrospun Lead Selenide Nanostructures within Anatase Titania Nanotubes for Advanced Photovoltaics

1
Materials Engineering and Nanosensor (MEAN) Laboratory, Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX 77710, USA
2
Laboratory of Soft Colloids & Interfaces, Department of Chemical Engineering, The University of Rhode Island, Kingston, RI 02881, USA
3
Department of Physics, The University of Rhode Island, Kingston, RI 02881, USA
*
Authors to whom correspondence should be addressed.
Academic Editor: Giancarlo C. Righini
Received: 1 April 2015 / Accepted: 20 May 2015 / Published: 1 June 2015
View Full-Text   |   Download PDF [346 KB, uploaded 1 June 2015]   |  

Abstract

Inorganic nano-scale heterostructures have many advantages over hybrid organic-inorganic dye-sensitized solar cells (DSSC or Grätzel cells), including their resistance to photo-bleaching, thermal stability, large specific surface areas, and general robustness. This study presents a first-of-its-kind low-cost all-inorganic lead selenide-anatase titania (PbSe/TiO2) nanotube heterostructure material for photovoltaic applications. Herein, PbSe nanostructures have been co-electrospun within a hollow TiO2 nanotube with high connectivity for highly efficient charge carrier flow and electron-hole pair separation. This material has been characterized by transmission electron microscopy (TEM), electron diffraction, energy dispersive X-ray spectroscopy (EDX) to show the morphology and material composition of the synthesized nanocomposite. Photovoltaic characterization has shown this newly synthesized proof-of-concept material can easily produce a photocurrent under solar illumination, and, with further refinement, could reveal a new direction in photovoltaic materials. View Full-Text
Keywords: lead selenide (PbSe); titania (TiO2); nanocomposite; co-electrospun; nanostructure; nanotube; photovoltaic; synthesis lead selenide (PbSe); titania (TiO2); nanocomposite; co-electrospun; nanostructure; nanotube; photovoltaic; synthesis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Wujcik, E.K.; Aceto, S.R.; Heskett, D.; Bose, A. Synthesis of Co-Electrospun Lead Selenide Nanostructures within Anatase Titania Nanotubes for Advanced Photovoltaics. Fibers 2015, 3, 173-183.

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