Synergistic photocurrent addition in hybrid quantum dot: Bulk heterojunction solar cells

Gi Hwan Kim; Bright Walker; David Zhitomirsky; Jungwoo Heo; Seo Jin Ko; Jongnam Park; Edward H. Sargent; Jin Young Kim

doi:10.1016/j.nanoen.2015.03.025

Synergistic photocurrent addition in hybrid quantum dot: Bulk heterojunction solar cells

Gi Hwan Kim, Bright Walker, David Zhitomirsky, Jungwoo Heo, Seo Jin Ko, Jongnam Park, Edward H. Sargent^*, Jin Young Kim

^*Corresponding author for this work

Chemistry

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

16 Scopus citations

Abstract

We investigate the effect of a thin PbS quantum dot (QD) layer on the performance of hybrid quantum-dot-organic solar cells (QD-OSCs). The PbS QD layer is able to function as a photosensitizing layer to improve short circuit current density (J_SC) and power conversion efficiency (PCE) by exploiting solar flux in the near infrared region up to 1100nm. The increase in J_SC is well represented by changes observed in the external quantum efficiency of devices with and without the PbS QD layer, including the region of the first exciton transition where only the PbS QD layer absorbs. Remarkably, enhanced performance was observed in QD-OSCs consisting of just a 13nm thick PbS QD layer and 150nm PTB7:PC₇₁BM layer, exhibiting a J_SC of 17.0mAcm^-2, and PCE of 8.30% (8.58% for champion device) compared to reference devices without PbS QD which produced a J_SC of 15.4mAcm^-2 and PCE of 7.56%.

Original language	English (US)
Pages (from-to)	491-499
Number of pages	9
Journal	Nano Energy
Volume	13
DOIs	https://doi.org/10.1016/j.nanoen.2015.03.025
State	Published - Apr 1 2015

Keywords

Bulk-heterojunction solar cells
Hybrid solar cells
Organic
Quantum dot
Quantum dot solar cells

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Materials Science(all)
Electrical and Electronic Engineering

UN SDGs

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

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10.1016/j.nanoen.2015.03.025

Cite this

@article{76af75d4834f4181852c35ea7050f202,

title = "Synergistic photocurrent addition in hybrid quantum dot: Bulk heterojunction solar cells",

abstract = "We investigate the effect of a thin PbS quantum dot (QD) layer on the performance of hybrid quantum-dot-organic solar cells (QD-OSCs). The PbS QD layer is able to function as a photosensitizing layer to improve short circuit current density (JSC) and power conversion efficiency (PCE) by exploiting solar flux in the near infrared region up to 1100nm. The increase in JSC is well represented by changes observed in the external quantum efficiency of devices with and without the PbS QD layer, including the region of the first exciton transition where only the PbS QD layer absorbs. Remarkably, enhanced performance was observed in QD-OSCs consisting of just a 13nm thick PbS QD layer and 150nm PTB7:PC71BM layer, exhibiting a JSC of 17.0mAcm-2, and PCE of 8.30% (8.58% for champion device) compared to reference devices without PbS QD which produced a JSC of 15.4mAcm-2 and PCE of 7.56%.",

keywords = "Bulk-heterojunction solar cells, Hybrid solar cells, Organic, Quantum dot, Quantum dot solar cells",

author = "Kim, {Gi Hwan} and Bright Walker and David Zhitomirsky and Jungwoo Heo and Ko, {Seo Jin} and Jongnam Park and Sargent, {Edward H.} and {Young Kim}, Jin",

note = "Funding Information: This research was supported by the BK21 Plus Program (META-Material-Based Energy Harvest and Storage Technologies, 10Z20130011057 ) funded by the Ministry of Education (MOE, Korea) , the National Research Foundation of Korea Grant ( NRF-2013R1A2A2A01015342 ), and the International Cooperation of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) Grant funded by the Ministry of Knowledge Economy , South Korea ( 2012T100100740 ), D. Zhitomirsky would like to acknowledge support from the NSERC CGS D scholarship. Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = apr,

day = "1",

doi = "10.1016/j.nanoen.2015.03.025",

language = "English (US)",

volume = "13",

pages = "491--499",

journal = "Nano Energy",

issn = "2211-2855",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Synergistic photocurrent addition in hybrid quantum dot

T2 - Bulk heterojunction solar cells

AU - Kim, Gi Hwan

AU - Walker, Bright

AU - Zhitomirsky, David

AU - Heo, Jungwoo

AU - Ko, Seo Jin

AU - Park, Jongnam

AU - Sargent, Edward H.

AU - Young Kim, Jin

N1 - Funding Information: This research was supported by the BK21 Plus Program (META-Material-Based Energy Harvest and Storage Technologies, 10Z20130011057 ) funded by the Ministry of Education (MOE, Korea) , the National Research Foundation of Korea Grant ( NRF-2013R1A2A2A01015342 ), and the International Cooperation of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) Grant funded by the Ministry of Knowledge Economy , South Korea ( 2012T100100740 ), D. Zhitomirsky would like to acknowledge support from the NSERC CGS D scholarship. Publisher Copyright: © 2015 Elsevier Ltd.

PY - 2015/4/1

Y1 - 2015/4/1

N2 - We investigate the effect of a thin PbS quantum dot (QD) layer on the performance of hybrid quantum-dot-organic solar cells (QD-OSCs). The PbS QD layer is able to function as a photosensitizing layer to improve short circuit current density (JSC) and power conversion efficiency (PCE) by exploiting solar flux in the near infrared region up to 1100nm. The increase in JSC is well represented by changes observed in the external quantum efficiency of devices with and without the PbS QD layer, including the region of the first exciton transition where only the PbS QD layer absorbs. Remarkably, enhanced performance was observed in QD-OSCs consisting of just a 13nm thick PbS QD layer and 150nm PTB7:PC71BM layer, exhibiting a JSC of 17.0mAcm-2, and PCE of 8.30% (8.58% for champion device) compared to reference devices without PbS QD which produced a JSC of 15.4mAcm-2 and PCE of 7.56%.

AB - We investigate the effect of a thin PbS quantum dot (QD) layer on the performance of hybrid quantum-dot-organic solar cells (QD-OSCs). The PbS QD layer is able to function as a photosensitizing layer to improve short circuit current density (JSC) and power conversion efficiency (PCE) by exploiting solar flux in the near infrared region up to 1100nm. The increase in JSC is well represented by changes observed in the external quantum efficiency of devices with and without the PbS QD layer, including the region of the first exciton transition where only the PbS QD layer absorbs. Remarkably, enhanced performance was observed in QD-OSCs consisting of just a 13nm thick PbS QD layer and 150nm PTB7:PC71BM layer, exhibiting a JSC of 17.0mAcm-2, and PCE of 8.30% (8.58% for champion device) compared to reference devices without PbS QD which produced a JSC of 15.4mAcm-2 and PCE of 7.56%.

KW - Bulk-heterojunction solar cells

KW - Hybrid solar cells

KW - Organic

KW - Quantum dot

KW - Quantum dot solar cells

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M3 - Article

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VL - 13

SP - 491

EP - 499

JO - Nano Energy

JF - Nano Energy

SN - 2211-2855

ER -

Synergistic photocurrent addition in hybrid quantum dot: Bulk heterojunction solar cells

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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