Advanced Materials, volume 24, issue 46, pages 6181-6185

N-Type Colloidal-Quantum-Dot Solids for Photovoltaics

Publication typeJournal Article
Publication date2012-09-12
scimago Q1
SJR9.191
CiteScore43.0
Impact factor27.4
ISSN09359648, 15214095
General Materials Science
Mechanical Engineering
Mechanics of Materials
Abstract
N-type PbS colloidal-quantum-dot (CQD) films are fabricated using a controlled halide chemical treatment, applied in an inert processing ambient environment. The new materials exhibit a mobility of 0.1 cm2 V−1 s−1. The halogen ions serve both as a passivating agent and n-dope the films via substitution at surface chalcogen sites. The majority electron concentration across the range 1016 to 1018 cm−3 is varied systematically.

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