Quantification of Deep Traps in Nanocrystal Solids, Their Electronic Properties, and Their Influence on Device Behavior
- 28 October 2013
- journal article
- research article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 13 (11), 5284-5288
- https://doi.org/10.1021/nl402803h
Abstract
We implement three complementary techniques to quantify the number, energy, and electronic properties of trap states in nanocrystal (NC)-based devices. We demonstrate that, for a given technique, the ability to observe traps depends on the Fermi level position, highlighting the importance of a multitechnique approach that probes trap coupling to both the conduction and the valence bands. We then apply our protocol for characterizing traps to quantitatively explain the measured performances of PbS NC-based solar cells.Keywords
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