title: Tailoring the Electronic Properties of Colloidal Quantum Dots in Metal-Semiconductor Nanocomposites for High Performance Photodetectors.
abstract: Metallic nanoparticles tailor the electronic properties of PbS colloidal quantum dots in a post-synthetic, all solution-processable approach. The Fermi level of the resulting nanocomposites can be tuned from p- to n-type due to remote charge transfer and electron trap state passivation. This concurrently reduces dark current, improves time response, and increases sensitivity in PbS photoconductors, yielding an over-two-fold increase in detectivity.
authors: ICFO - Institut de Ciències Fotòniques, Mediterranean Technology Park, 08860, Castelldefels, Barcelona, Spain.
authors: F Pelayo
authors: FP
authors: García de Arquer
authors: ICFO - Institut de Ciències Fotòniques, Mediterranean Technology Park, 08860, Castelldefels, Barcelona, Spain.
authors: Tania
authors: T
authors: Lasanta
authors: ICFO - Institut de Ciències Fotòniques, Mediterranean Technology Park, 08860, Castelldefels, Barcelona, Spain.
authors: María
authors: M
authors: Bernechea
authors: ICFO - Institut de Ciències Fotòniques, Mediterranean Technology Park, 08860, Castelldefels, Barcelona, Spain.
authors: Gerasimos
authors: G
authors: Konstantatos
keywords: colloidal quantum dots; doping; metal nanoparticles, nanocomposites; photodetection; plasmonics