High Efficiency Hybrid Solar Cells Using Nanocrystalline Si Quantum Dots and Si Nanowires

Mrinal Dutta; Lavanya Thirugnanam; Pham Van Trinh; Naoki Fukata

doi:10.1021/acsnano.5b03268

High Efficiency Hybrid Solar Cells Using Nanocrystalline Si Quantum Dots and Si Nanowires

Mrinal Dutta, Lavanya Thirugnanam, Pham Van Trinh, Naoki Fukata

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

79 Scopus citations

Abstract

We report on an efficient hybrid Si nanocrystal quantum dot modified radial p-n junction thinner Si solar cell that utilizes the advantages of effective exciton collection by energy transfer from nanocrystal-Si (nc-Si) quantum dots to underlying radial p-n junction Si nanowire arrays with excellent carrier separation and propagation via the built-in electric fields of radial p-n junctions. Minimization of recombination, optical, and spectrum losses in this hybrid structure led to a high cell efficiency of 12.9%.

Original language	English
Pages (from-to)	6891-6899
Number of pages	9
Journal	ACS Nano
Volume	9
Issue number	7
DOIs	https://doi.org/10.1021/acsnano.5b03268
State	Published - 28 Jul 2015
Externally published	Yes

Keywords

Si
p-n junctions
quantum dot
solar cell

ASJC Scopus subject areas

General Materials Science
General Engineering
General Physics and Astronomy

UN SDGs

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

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10.1021/acsnano.5b03268

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title = "High Efficiency Hybrid Solar Cells Using Nanocrystalline Si Quantum Dots and Si Nanowires",

abstract = "We report on an efficient hybrid Si nanocrystal quantum dot modified radial p-n junction thinner Si solar cell that utilizes the advantages of effective exciton collection by energy transfer from nanocrystal-Si (nc-Si) quantum dots to underlying radial p-n junction Si nanowire arrays with excellent carrier separation and propagation via the built-in electric fields of radial p-n junctions. Minimization of recombination, optical, and spectrum losses in this hybrid structure led to a high cell efficiency of 12.9%.",

keywords = "Si, p-n junctions, quantum dot, solar cell",

author = "Mrinal Dutta and Lavanya Thirugnanam and Trinh, {Pham Van} and Naoki Fukata",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2015",

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doi = "10.1021/acsnano.5b03268",

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T1 - High Efficiency Hybrid Solar Cells Using Nanocrystalline Si Quantum Dots and Si Nanowires

AU - Dutta, Mrinal

AU - Thirugnanam, Lavanya

AU - Trinh, Pham Van

AU - Fukata, Naoki

PY - 2015/7/28

Y1 - 2015/7/28

N2 - We report on an efficient hybrid Si nanocrystal quantum dot modified radial p-n junction thinner Si solar cell that utilizes the advantages of effective exciton collection by energy transfer from nanocrystal-Si (nc-Si) quantum dots to underlying radial p-n junction Si nanowire arrays with excellent carrier separation and propagation via the built-in electric fields of radial p-n junctions. Minimization of recombination, optical, and spectrum losses in this hybrid structure led to a high cell efficiency of 12.9%.

AB - We report on an efficient hybrid Si nanocrystal quantum dot modified radial p-n junction thinner Si solar cell that utilizes the advantages of effective exciton collection by energy transfer from nanocrystal-Si (nc-Si) quantum dots to underlying radial p-n junction Si nanowire arrays with excellent carrier separation and propagation via the built-in electric fields of radial p-n junctions. Minimization of recombination, optical, and spectrum losses in this hybrid structure led to a high cell efficiency of 12.9%.

KW - Si

KW - p-n junctions

KW - quantum dot

KW - solar cell

UR - http://www.scopus.com/inward/record.url?scp=84938154150&partnerID=8YFLogxK

U2 - 10.1021/acsnano.5b03268

DO - 10.1021/acsnano.5b03268

M3 - Article

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JO - ACS Nano

JF - ACS Nano

IS - 7

ER -

High Efficiency Hybrid Solar Cells Using Nanocrystalline Si Quantum Dots and Si Nanowires

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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