Near-infrared-sensitive bulk heterojunction solar cells using nanostructured hybrid composites of HgTe quantum dots and a low-bandgap polymer

Minwoo Nam; Sungwoo Kim; Sejin Kim; Sohee Jeong; Sang Wook Kim; Keekeun Lee

doi:10.1016/j.solmat.2014.03.027

Near-infrared-sensitive bulk heterojunction solar cells using nanostructured hybrid composites of HgTe quantum dots and a low-bandgap polymer

Minwoo Nam, Sungwoo Kim, Sejin Kim, Sohee Jeong, Sang Wook Kim, Keekeun Lee

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

19 Scopus citations

Abstract

Near-infrared (NIR)-sensitive hybrid bulk heterojunction solar cells were developed using NIR-absorbing HgTe quantum dots (QDs) and a low-bandgap polymer, poly[2,6-(4,4′-bis-(2-ethylhexyl)dithieno[3,2-b:2′,3′-d] silole)-alt-4,7(2,1,3-benzothiadiazole)] (PSBTBT). Hybrid composites of HgTe QDs and PSBTBT facilitate broad-range exploitation of the solar spectrum and efficient carrier dissociation prior to recombination. Nanostructures were formed on the surface of the hybrid composite via a nanoimprinting process using an anodic aluminum oxide (AAO) mold. This contributes to optical light scattering for efficient utilization of light up to the NIR region and enlarged photoactive layer-electrode interfacial areas for improving charge extraction, increasing the overall efficiency from 1.09 to 1.41%.

Original language	English
Pages (from-to)	163-169
Number of pages	7
Journal	Solar Energy Materials and Solar Cells
Volume	126
DOIs	https://doi.org/10.1016/j.solmat.2014.03.027
State	Published - Jul 2014
Externally published	Yes

Keywords

Anodic aluminum oxide
HgTe quantum dot
Hybrid solar cell
Low-bandgap polymer
Nanoimprinting

UN SDGs

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

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10.1016/j.solmat.2014.03.027

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@article{096005626d5949eb860e6e49aa2d4227,

title = "Near-infrared-sensitive bulk heterojunction solar cells using nanostructured hybrid composites of HgTe quantum dots and a low-bandgap polymer",

abstract = "Near-infrared (NIR)-sensitive hybrid bulk heterojunction solar cells were developed using NIR-absorbing HgTe quantum dots (QDs) and a low-bandgap polymer, poly[2,6-(4,4′-bis-(2-ethylhexyl)dithieno[3,2-b:2′,3′-d] silole)-alt-4,7(2,1,3-benzothiadiazole)] (PSBTBT). Hybrid composites of HgTe QDs and PSBTBT facilitate broad-range exploitation of the solar spectrum and efficient carrier dissociation prior to recombination. Nanostructures were formed on the surface of the hybrid composite via a nanoimprinting process using an anodic aluminum oxide (AAO) mold. This contributes to optical light scattering for efficient utilization of light up to the NIR region and enlarged photoactive layer-electrode interfacial areas for improving charge extraction, increasing the overall efficiency from 1.09 to 1.41\%.",

keywords = "Anodic aluminum oxide, HgTe quantum dot, Hybrid solar cell, Low-bandgap polymer, Nanoimprinting",

author = "Minwoo Nam and Sungwoo Kim and Sejin Kim and Sohee Jeong and Kim, \{Sang Wook\} and Keekeun Lee",

year = "2014",

month = jul,

doi = "10.1016/j.solmat.2014.03.027",

language = "English",

volume = "126",

pages = "163--169",

journal = "Solar Energy Materials and Solar Cells",

issn = "0927-0248",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Near-infrared-sensitive bulk heterojunction solar cells using nanostructured hybrid composites of HgTe quantum dots and a low-bandgap polymer

AU - Nam, Minwoo

AU - Kim, Sungwoo

AU - Kim, Sejin

AU - Jeong, Sohee

AU - Kim, Sang Wook

AU - Lee, Keekeun

PY - 2014/7

Y1 - 2014/7

N2 - Near-infrared (NIR)-sensitive hybrid bulk heterojunction solar cells were developed using NIR-absorbing HgTe quantum dots (QDs) and a low-bandgap polymer, poly[2,6-(4,4′-bis-(2-ethylhexyl)dithieno[3,2-b:2′,3′-d] silole)-alt-4,7(2,1,3-benzothiadiazole)] (PSBTBT). Hybrid composites of HgTe QDs and PSBTBT facilitate broad-range exploitation of the solar spectrum and efficient carrier dissociation prior to recombination. Nanostructures were formed on the surface of the hybrid composite via a nanoimprinting process using an anodic aluminum oxide (AAO) mold. This contributes to optical light scattering for efficient utilization of light up to the NIR region and enlarged photoactive layer-electrode interfacial areas for improving charge extraction, increasing the overall efficiency from 1.09 to 1.41%.

AB - Near-infrared (NIR)-sensitive hybrid bulk heterojunction solar cells were developed using NIR-absorbing HgTe quantum dots (QDs) and a low-bandgap polymer, poly[2,6-(4,4′-bis-(2-ethylhexyl)dithieno[3,2-b:2′,3′-d] silole)-alt-4,7(2,1,3-benzothiadiazole)] (PSBTBT). Hybrid composites of HgTe QDs and PSBTBT facilitate broad-range exploitation of the solar spectrum and efficient carrier dissociation prior to recombination. Nanostructures were formed on the surface of the hybrid composite via a nanoimprinting process using an anodic aluminum oxide (AAO) mold. This contributes to optical light scattering for efficient utilization of light up to the NIR region and enlarged photoactive layer-electrode interfacial areas for improving charge extraction, increasing the overall efficiency from 1.09 to 1.41%.

KW - Anodic aluminum oxide

KW - HgTe quantum dot

KW - Hybrid solar cell

KW - Low-bandgap polymer

KW - Nanoimprinting

UR - https://www.scopus.com/pages/publications/84898985118

U2 - 10.1016/j.solmat.2014.03.027

DO - 10.1016/j.solmat.2014.03.027

M3 - Article

AN - SCOPUS:84898985118

SN - 0927-0248

VL - 126

SP - 163

EP - 169

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

ER -

Near-infrared-sensitive bulk heterojunction solar cells using nanostructured hybrid composites of HgTe quantum dots and a low-bandgap polymer

Abstract

Keywords

UN SDGs

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