Thermal Properties of TiO2/PbS Nanoparticle Solar Cells | Zendy

Derek Padilla | Zendy; Guangmei Zhai | Zendy; Alison J. Breeze | Zendy; Daoli Zhang | Zendy; Glenn Alers | Zendy; Sue A. Carter | Zendy

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Thermal Properties of TiO₂/PbS Nanoparticle Solar Cells

Author(s) -

Derek Padilla,

Guangmei Zhai,

Alison J. Breeze,

Daoli Zhang,

Glenn Alers,

Sue A. Carter

Publication year - 2012

Publication title -

nanomaterials and nanotechnology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.412

H-Index - 21

ISSN - 1847-9804

DOI - 10.5772/55901

Subject(s) - materials science , open circuit voltage , thermal conduction , optoelectronics , quantum tunnelling , nanoparticle , dark current , conduction band , short circuit , thermal , current density , recombination , chemical physics , nanotechnology , molecular physics , voltage , electron , physics , chemistry , thermodynamics , quantum mechanics , gene , composite material , photodetector , biochemistry

Photovoltaic performance is shown to depend onligand capping on PbS nanoparticle solar cells by varyingthe temperature between 140K and 350K. The thermalresponse of open‐circuit voltage, short‐circuit currentdensity, fill‐factor and shunt resistance varies between theligands. A large increase in short‐circuit current density atlow temperatures is observed for 1,2‐ethanedithiol and3‐mercaptopropionic acid and a relatively constant shortcircuitcurrent density is observed for the stiffer1,4‐benzenedithiol. Dark data provide evidence fortunnelling transport being the dominant charge conductionmechanism for all three ligand devices with recombinationoccurring within deep trap states. Under illumination,devices exhibit band‐to‐band recombination, indicated byan ideality factor of nearly unity

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