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Open AccessArticle

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

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Materials Engineering and Nanosensor (MEAN) Laboratory, Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX 77710, USA
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Laboratory of Soft Colloids & Interfaces, Department of Chemical Engineering, The University of Rhode Island, Kingston, RI 02881, USA
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Department of Physics, The University of Rhode Island, Kingston, RI 02881, USA
*
Authors to whom correspondence should be addressed.
Academic Editor: Giancarlo C. Righini
Fibers 2015, 3(2), 173-183; https://doi.org/10.3390/fib3020173
Received: 1 April 2015 / Accepted: 20 May 2015 / Published: 1 June 2015
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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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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