Highly Asymmetric n+-p Heterojunction Quantum-Dot Solar Cells with Significantly Improved Charge-Collection Efficiencies

Min Jae Choi; Sunchuel Kim; Hunhee Lim; Jaesuk Choi; Dong Min Sim; Soonmin Yim; Byung Tae Ahn; Jin Young Kim; Yeon Sik Jung

doi:10.1002/adma.201503879

Highly Asymmetric n⁺-p Heterojunction Quantum-Dot Solar Cells with Significantly Improved Charge-Collection Efficiencies

Min Jae Choi
, Sunchuel Kim
, Hunhee Lim
, Jaesuk Choi
, Dong Min Sim
, Soonmin Yim
, Byung Tae Ahn
, Jin Young Kim
, Yeon Sik Jung

Department of Chemical and Biochemical Engineering

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

32 Scopus citations

Abstract

The depletion region width of metal-oxide/quantum-dot (QD) heterojunction solar cells is increased by a new method in which heavily boron-doped n⁺-ZnO is employed. It is effectively increased in the QD layer by 30% compared to the counterpart with conventional n-ZnO, and provides 41% and 37% improvement of J_sc (16.7 mA cm^-2 to 23.5 mA cm^-2) and power conversion efficiency (5.52% to 7.55%), respectively.

Original language	English
Pages (from-to)	1780-1787
Number of pages	8
Journal	Advanced Materials
Volume	28
Issue number	9
DOIs	https://doi.org/10.1002/adma.201503879
State	Published - 2 Mar 2016

Keywords

colloidal quantum dots
depletion region width
heavily doping
metal oxides
solar cells

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10.1002/adma.201503879

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title = "Highly Asymmetric n+-p Heterojunction Quantum-Dot Solar Cells with Significantly Improved Charge-Collection Efficiencies",

abstract = "The depletion region width of metal-oxide/quantum-dot (QD) heterojunction solar cells is increased by a new method in which heavily boron-doped n+-ZnO is employed. It is effectively increased in the QD layer by 30\% compared to the counterpart with conventional n-ZnO, and provides 41\% and 37\% improvement of Jsc (16.7 mA cm-2 to 23.5 mA cm-2) and power conversion efficiency (5.52\% to 7.55\%), respectively.",

keywords = "colloidal quantum dots, depletion region width, heavily doping, metal oxides, solar cells",

author = "Choi, \{Min Jae\} and Sunchuel Kim and Hunhee Lim and Jaesuk Choi and Sim, \{Dong Min\} and Soonmin Yim and Ahn, \{Byung Tae\} and Kim, \{Jin Young\} and Jung, \{Yeon Sik\}",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2016",

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doi = "10.1002/adma.201503879",

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journal = "Advanced Materials",

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T1 - Highly Asymmetric n+-p Heterojunction Quantum-Dot Solar Cells with Significantly Improved Charge-Collection Efficiencies

AU - Choi, Min Jae

AU - Kim, Sunchuel

AU - Lim, Hunhee

AU - Choi, Jaesuk

AU - Sim, Dong Min

AU - Yim, Soonmin

AU - Ahn, Byung Tae

AU - Kim, Jin Young

AU - Jung, Yeon Sik

PY - 2016/3/2

Y1 - 2016/3/2

N2 - The depletion region width of metal-oxide/quantum-dot (QD) heterojunction solar cells is increased by a new method in which heavily boron-doped n+-ZnO is employed. It is effectively increased in the QD layer by 30% compared to the counterpart with conventional n-ZnO, and provides 41% and 37% improvement of Jsc (16.7 mA cm-2 to 23.5 mA cm-2) and power conversion efficiency (5.52% to 7.55%), respectively.

AB - The depletion region width of metal-oxide/quantum-dot (QD) heterojunction solar cells is increased by a new method in which heavily boron-doped n+-ZnO is employed. It is effectively increased in the QD layer by 30% compared to the counterpart with conventional n-ZnO, and provides 41% and 37% improvement of Jsc (16.7 mA cm-2 to 23.5 mA cm-2) and power conversion efficiency (5.52% to 7.55%), respectively.

KW - colloidal quantum dots

KW - depletion region width

KW - heavily doping

KW - metal oxides

KW - solar cells

UR - https://www.scopus.com/pages/publications/84959513517

U2 - 10.1002/adma.201503879

DO - 10.1002/adma.201503879

M3 - Article

AN - SCOPUS:84959513517

SN - 0935-9648

VL - 28

SP - 1780

EP - 1787

JO - Advanced Materials

JF - Advanced Materials

IS - 9

ER -

Highly Asymmetric n⁺-p Heterojunction Quantum-Dot Solar Cells with Significantly Improved Charge-Collection Efficiencies

Abstract

Keywords

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