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  • Title: The complete in-gap electronic structure of colloidal quantum dot solids and its correlation with electronic transport and photovoltaic performance.
    Author: Katsiev K, Ip AH, Fischer A, Tanabe I, Zhang X, Kirmani AR, Voznyy O, Rollny LR, Chou KW, Thon SM, Carey GH, Cui X, Amassian A, Dowben P, Sargent EH, Bakr OM.
    Journal: Adv Mater; 2014 Feb 12; 26(6):937-42. PubMed ID: 24243769.
    Abstract:
    The direct observation of the complete electronic band structure of a family of PbS CQD solids via photoelectron spectroscopy is reported. We investigate how materials processing strategies, such as the latest passivation methods that produce record-performance photovoltaics, achieve their performance advances. Halide passivated films show a drastic reduction in states in the midgap, contributing to a marked improvement in the device performance.
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