Thin film solar cells based on the heterojunction of colloidal PbS quantum dots with CdS

Khagendra P. Bhandari; Paul J. Roland; Hasitha Mahabaduge; Neale O. Haugen; Corey R. Grice; Sohee Jeong; Tieneke Dykstra; Jianbo Gao; Randy J. Ellingson

doi:10.1016/j.solmat.2013.07.018

Thin film solar cells based on the heterojunction of colloidal PbS quantum dots with CdS

Khagendra P. Bhandari
, Paul J. Roland
, Hasitha Mahabaduge
, Neale O. Haugen
, Corey R. Grice
, Sohee Jeong
, Tieneke Dykstra
, Jianbo Gao
, Randy J. Ellingson

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

77 Scopus citations

Abstract

Here we report on heterojunction PbS quantum dot (QD) solar cells using RF magnetron sputtered CdS as the n-type window layer. These solar cells generate large open circuit voltage compared to previously reported PbS-QD solar cells. Our investigations of this device design show an optimized CdS film thickness of 70 nm and an optimized PbS QD diameter of ∼2.7 nm, corresponding to a bandgap energy of ∼1.57 eV. Under simulated AM1.5 G illumination, we attain short circuit current as high as 12 mA-cm^-2, an open circuit voltage of 0.65 V and efficiency as high as 3.3%.

Original language	English
Pages (from-to)	476-482
Number of pages	7
Journal	Solar Energy Materials and Solar Cells
Volume	117
DOIs	https://doi.org/10.1016/j.solmat.2013.07.018
State	Published - 2013
Externally published	Yes

Keywords

CdS
PbS
Quantum dot
Solar cell
Thin film

UN SDGs

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

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10.1016/j.solmat.2013.07.018

Cite this

@article{1d822ae570764fc2b0e4efeeadbe99d4,

title = "Thin film solar cells based on the heterojunction of colloidal PbS quantum dots with CdS",

abstract = "Here we report on heterojunction PbS quantum dot (QD) solar cells using RF magnetron sputtered CdS as the n-type window layer. These solar cells generate large open circuit voltage compared to previously reported PbS-QD solar cells. Our investigations of this device design show an optimized CdS film thickness of 70 nm and an optimized PbS QD diameter of ∼2.7 nm, corresponding to a bandgap energy of ∼1.57 eV. Under simulated AM1.5 G illumination, we attain short circuit current as high as 12 mA-cm-2, an open circuit voltage of 0.65 V and efficiency as high as 3.3\%.",

keywords = "CdS, PbS, Quantum dot, Solar cell, Thin film",

author = "Bhandari, \{Khagendra P.\} and Roland, \{Paul J.\} and Hasitha Mahabaduge and Haugen, \{Neale O.\} and Grice, \{Corey R.\} and Sohee Jeong and Tieneke Dykstra and Jianbo Gao and Ellingson, \{Randy J.\}",

year = "2013",

doi = "10.1016/j.solmat.2013.07.018",

language = "English",

volume = "117",

pages = "476--482",

journal = "Solar Energy Materials and Solar Cells",

issn = "0927-0248",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Thin film solar cells based on the heterojunction of colloidal PbS quantum dots with CdS

AU - Bhandari, Khagendra P.

AU - Roland, Paul J.

AU - Mahabaduge, Hasitha

AU - Haugen, Neale O.

AU - Grice, Corey R.

AU - Jeong, Sohee

AU - Dykstra, Tieneke

AU - Gao, Jianbo

AU - Ellingson, Randy J.

PY - 2013

Y1 - 2013

N2 - Here we report on heterojunction PbS quantum dot (QD) solar cells using RF magnetron sputtered CdS as the n-type window layer. These solar cells generate large open circuit voltage compared to previously reported PbS-QD solar cells. Our investigations of this device design show an optimized CdS film thickness of 70 nm and an optimized PbS QD diameter of ∼2.7 nm, corresponding to a bandgap energy of ∼1.57 eV. Under simulated AM1.5 G illumination, we attain short circuit current as high as 12 mA-cm-2, an open circuit voltage of 0.65 V and efficiency as high as 3.3%.

AB - Here we report on heterojunction PbS quantum dot (QD) solar cells using RF magnetron sputtered CdS as the n-type window layer. These solar cells generate large open circuit voltage compared to previously reported PbS-QD solar cells. Our investigations of this device design show an optimized CdS film thickness of 70 nm and an optimized PbS QD diameter of ∼2.7 nm, corresponding to a bandgap energy of ∼1.57 eV. Under simulated AM1.5 G illumination, we attain short circuit current as high as 12 mA-cm-2, an open circuit voltage of 0.65 V and efficiency as high as 3.3%.

KW - CdS

KW - PbS

KW - Quantum dot

KW - Solar cell

KW - Thin film

UR - https://www.scopus.com/pages/publications/84881490885

U2 - 10.1016/j.solmat.2013.07.018

DO - 10.1016/j.solmat.2013.07.018

M3 - Article

AN - SCOPUS:84881490885

SN - 0927-0248

VL - 117

SP - 476

EP - 482

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

ER -

Thin film solar cells based on the heterojunction of colloidal PbS quantum dots with CdS

Abstract

Keywords

UN SDGs

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