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Proceedings Paper

Influence of the surface ligands on the optical and electrical properties of PbS QD solids
Author(s): Mariya A. Zvaigzne; Alexey E. Aleksandrov; Yaroslav Goltyapin; Alexey R. Tameev; Alexander A. Chistyakov
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Paper Abstract

We studied the influence of the ligands on the optical properties of PbS QD solids using the photoluminescence spectra and the kinetics of photoluminescence decay. As the ligand molecule length decreases, the photoluminescence decay becomes faster, which in a good agreement with the theory of the hopping mechanism of charge transfer in QD solids. We also fabricate photovoltaic structures (ITO/PEDOT:PSS/PbS/ZnO/Al) based on PbS QD solids and investigate the influence of various organic ligand molecules on its photovoltaic characteristics. The maximum efficiency was observed in samples with a ligand of intermediate length.

Paper Details

Date Published: 4 May 2018
PDF: 6 pages
Proc. SPIE 10672, Nanophotonics VII, 1067235 (4 May 2018); doi: 10.1117/12.2306912
Show Author Affiliations
Mariya A. Zvaigzne, National Research Nuclear Univ. MEPhI (Russian Federation)
Alexey E. Aleksandrov, A.N. Frumkin Institute of Physical Chemistry and Electrochemistry (Russian Federation)
Yaroslav Goltyapin, National Research Nuclear Univ. MEPhI (Russian Federation)
Alexey R. Tameev, A.N. Frumkin Institute of Physical Chemistry and Electrochemistry (Russian Federation)
Alexander A. Chistyakov, National Research Nuclear Univ. MEPhI (Russian Federation)


Published in SPIE Proceedings Vol. 10672:
Nanophotonics VII
David L. Andrews; Angus J. Bain; Jean-Michel Nunzi; Andreas Ostendorf, Editor(s)

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