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

Khabiboulakh Katsiev; 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

doi:10.1002/adma.201304166

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

Khabiboulakh Katsiev, 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^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

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.

Original language	English (US)
Pages (from-to)	937-942
Number of pages	6
Journal	Advanced Materials
Volume	26
Issue number	6
DOIs	https://doi.org/10.1002/adma.201304166
State	Published - Feb 12 2014

Keywords

electronic structure
photoelectron spectroscopy
photovoltaics
quantum dots
trap states

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/adma.201304166

Cite this

Katsiev, K., Ip, A. H., Fischer, A., Tanabe, I., Zhang, X., Kirmani, A. R., Voznyy, O., Rollny, L. R., Chou, K. W., Thon, S. M., Carey, G. H., Cui, X., Amassian, A., Dowben, P., Sargent, E. H., & Bakr, O. M. (2014). The complete in-gap electronic structure of colloidal quantum dot solids and its correlation with electronic transport and photovoltaic performance. Advanced Materials, 26(6), 937-942. https://doi.org/10.1002/adma.201304166

@article{06fa295623d0404dbf0baa8502149d5b,

title = "The complete in-gap electronic structure of colloidal quantum dot solids and its correlation with electronic transport and photovoltaic performance",

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.",

keywords = "electronic structure, photoelectron spectroscopy, photovoltaics, quantum dots, trap states",

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

year = "2014",

month = feb,

day = "12",

doi = "10.1002/adma.201304166",

language = "English (US)",

volume = "26",

pages = "937--942",

journal = "Advanced Materials",

issn = "0935-9648",

publisher = "Wiley-VCH Verlag",

number = "6",

}

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 2014, 'The complete in-gap electronic structure of colloidal quantum dot solids and its correlation with electronic transport and photovoltaic performance', Advanced Materials, vol. 26, no. 6, pp. 937-942. https://doi.org/10.1002/adma.201304166

TY - JOUR

T1 - The complete in-gap electronic structure of colloidal quantum dot solids and its correlation with electronic transport and photovoltaic performance

AU - Katsiev, Khabiboulakh

AU - Ip, Alexander H.

AU - Fischer, Armin

AU - Tanabe, Iori

AU - Zhang, Xin

AU - Kirmani, Ahmad R.

AU - Voznyy, Oleksandr

AU - Rollny, Lisa R.

AU - Chou, Kang Wei

AU - Thon, Susanna M.

AU - Carey, Graham H.

AU - Cui, Xiaoyu

AU - Amassian, Aram

AU - Dowben, Peter

AU - Sargent, Edward H.

AU - Bakr, Osman M.

PY - 2014/2/12

Y1 - 2014/2/12

N2 - 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.

AB - 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.

KW - electronic structure

KW - photoelectron spectroscopy

KW - photovoltaics

KW - quantum dots

KW - trap states

UR - http://www.scopus.com/inward/record.url?scp=84893861708&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84893861708&partnerID=8YFLogxK

U2 - 10.1002/adma.201304166

DO - 10.1002/adma.201304166

M3 - Article

C2 - 24243769

AN - SCOPUS:84893861708

SN - 0935-9648

VL - 26

SP - 937

EP - 942

JO - Advanced Materials

JF - Advanced Materials

IS - 6

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this