Literature DB >> 24243769

The complete in-gap electronic structure of colloidal quantum dot solids and its correlation with electronic transport and photovoltaic performance.

Khabiboulakh Katsiev1, Alexander H Ip, Armin Fischer, Iori Tanabe, Xin Zhang, Ahmad R Kirmani, Oleksandr Voznyy, Lisa R Rollny, Kang Wei Chou, Susanna M Thon, Graham H Carey, Xiaoyu Cui, Aram Amassian, Peter Dowben, Edward H Sargent, Osman M Bakr.   

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.
© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Entities:  

Keywords:  electronic structure; photoelectron spectroscopy; photovoltaics; quantum dots; trap states

Year:  2013        PMID： 24243769     DOI： 10.1002/adma.201304166

Source DB:  PubMed          Journal:  Adv Mater        ISSN： 0935-9648            Impact factor:   30.849


  7 in total

1.  The Many "Facets" of Halide Ions in the Chemistry of Colloidal Inorganic Nanocrystals.

Authors:  Sandeep Ghosh; Liberato Manna
Journal:  Chem Rev       Date:  2018-07-31       Impact factor: 60.622

2.  Dynamic Formation of Metal-Based Traps in Photoexcited Colloidal Quantum Dots and Their Relevance for Photoluminescence.

Authors:  Indy du Fossé; Simon C Boehme; Ivan Infante; Arjan J Houtepen
Journal:  Chem Mater       Date:  2021-04-21       Impact factor: 9.811

3.  Effect of Chloride Passivation on Recombination Dynamics in CdTe Colloidal Quantum Dots.

Authors:  Daniel Espinobarro-Velazquez; Marina A Leontiadou; Robert C Page; Marco Califano; Paul O'Brien; David J Binks
Journal:  Chemphyschem       Date:  2015-01-14       Impact factor: 3.102

4.  Atomistic description of thiostannate-capped CdSe nanocrystals: retention of four-coordinate SnS4 motif and preservation of Cd-rich stoichiometry.

Authors:  Loredana Protesescu; Maarten Nachtegaal; Oleksandr Voznyy; Olga Borovinskaya; Aaron J Rossini; Lyndon Emsley; Christophe Copéret; Detlef Günther; Edward H Sargent; Maksym V Kovalenko
Journal:  J Am Chem Soc       Date:  2015-01-29       Impact factor: 15.419

5.  Near-unity quantum yields from chloride treated CdTe colloidal quantum dots.

Authors:  Robert C Page; Daniel Espinobarro-Velazquez; Marina A Leontiadou; Charles Smith; Edward A Lewis; Sarah J Haigh; Chen Li; Hanna Radtke; Atip Pengpad; Federica Bondino; Elena Magnano; Igor Pis; Wendy R Flavell; Paul O'Brien; David J Binks
Journal:  Small       Date:  2014-10-27       Impact factor: 13.281

6.  Charge transport in semiconductors assembled from nanocrystal quantum dots.

Authors:  Nuri Yazdani; Samuel Andermatt; Maksym Yarema; Vasco Farto; Mohammad Hossein Bani-Hashemian; Sebastian Volk; Weyde M M Lin; Olesya Yarema; Mathieu Luisier; Vanessa Wood
Journal:  Nat Commun       Date:  2020-06-05       Impact factor: 14.919

7.  Characterization of size, anisotropy, and density heterogeneity of nanoparticles by sedimentation velocity.

Authors:  Borries Demeler; Tich-Lam Nguyen; Gary E Gorbet; Virgil Schirf; Emre H Brookes; Paul Mulvaney; Ala'a O El-Ballouli; Jun Pan; Osman M Bakr; Aysha K Demeler; Blanca I Hernandez Uribe; Nabraj Bhattarai; Robert L Whetten
Journal:  Anal Chem       Date:  2014-07-18       Impact factor: 6.986
  7 in total

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