Sharp exponential band tails in highly disordered lead sulfide quantum dot arrays

We employ temperature-dependent, illumination intensity modulated photocurrent spectroscopy (IMPS) to investigate the intra-band-gap density of states in films of PbS quantum dots (QDs). Using both coplanar electrode and stacked photovoltaic device configurations, IMPS measurements of PbS QD arrays...

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Veröffentlicht in:	Physical Review. B, Condensed Matter and Materials Physics Condensed Matter and Materials Physics, 2012-10, Vol.86 (15), Article 155313
Hauptverfasser:	Erslev, Peter T., Chen, Hsiang-Yu, Gao, Jianbo, Beard, Matthew C., Frank, Arthur J., van de Lagemaat, Jao, Johnson, Justin C., Luther, Joseph M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Arrays Chemical and Material Sciences Condensed matter Devices Electrodes IMP NANOSCIENCE AND NANOTECHNOLOGY Photoelectric effect Quantum dots Semiconductors SOLAR ENERGY Solar Energy - Photovoltaics Trapping
Online-Zugang:	Volltext
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