ArticleThe journal of physical chemistry letters2026
Probing Intraband Carrier Dynamics in Degenerately N-Doped PbS Quantum Dots and Their Implications in Optoelectronic Devices.
Article in The journal of physical chemistry letters, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Tunable intraband transitions in colloidal quantum dots (QDs) have emerged as a promising platform for electronic transitions relevant to mid- to long-wavelength infrared optoelectronic devices. However, their broad device applications have been limited by an incomplete understanding of their spectroscopic and electrical properties. In this study, we investigate both the optical and electrical characteristics of N-doped PbS QDs using ultrafast mid-infrared transient absorption spectroscopy and temperature-dependent carrier transit time measurements. Our findings reveal intraband absorption coefficients ranging from 6 × 10
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