Enhanced open-circuit voltage of InAs/GaAs quantum dot solar cells by hydrogen plasma treatment

Hosung Kim; Minsu Park; Sanghyeon Kim; Sanghyuck Kim; Jindong Song; Wonjun Choi; Jungho Park; Yoojong Lee

doi:10.1116/1.4926630

Enhanced open-circuit voltage of InAs/GaAs quantum dot solar cells by hydrogen plasma treatment

Hosung Kim, Minsu Park, Sanghyeon Kim, Sanghyuck Kim, Jindong Song, Wonjun Choi, Jungho Park, Yoojong Lee

School of Electrical Engineering

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

7 Citations (Scopus)

Abstract

The authors describe performance enhancement in InAs/GaAs quantum dot solar cells (QDSCs) using hydrogen plasma treatment. Photoluminescence (PL) and time-resolved PL revealed clearly decreased defect levels in QDSCs and improved crystal quality after hydrogen passivation. As a result, the open-circuit voltage and efficiency of the hydrogen-treated QDSCs were largely increased about 70mV and 10%, respectively.

Original language	English
Article number	041401
Journal	Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics
Volume	33
Issue number	4
DOIs	https://doi.org/10.1116/1.4926630
Publication status	Published - 2015 Jul 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Process Chemistry and Technology
Surfaces, Coatings and Films
Electrical and Electronic Engineering
Materials Chemistry

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abstract = "The authors describe performance enhancement in InAs/GaAs quantum dot solar cells (QDSCs) using hydrogen plasma treatment. Photoluminescence (PL) and time-resolved PL revealed clearly decreased defect levels in QDSCs and improved crystal quality after hydrogen passivation. As a result, the open-circuit voltage and efficiency of the hydrogen-treated QDSCs were largely increased about 70mV and 10%, respectively.",

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AU - Kim, Hosung

AU - Park, Minsu

AU - Kim, Sanghyeon

AU - Kim, Sanghyuck

AU - Song, Jindong

AU - Choi, Wonjun

AU - Park, Jungho

AU - Lee, Yoojong

PY - 2015/7/1

Y1 - 2015/7/1

N2 - The authors describe performance enhancement in InAs/GaAs quantum dot solar cells (QDSCs) using hydrogen plasma treatment. Photoluminescence (PL) and time-resolved PL revealed clearly decreased defect levels in QDSCs and improved crystal quality after hydrogen passivation. As a result, the open-circuit voltage and efficiency of the hydrogen-treated QDSCs were largely increased about 70mV and 10%, respectively.

AB - The authors describe performance enhancement in InAs/GaAs quantum dot solar cells (QDSCs) using hydrogen plasma treatment. Photoluminescence (PL) and time-resolved PL revealed clearly decreased defect levels in QDSCs and improved crystal quality after hydrogen passivation. As a result, the open-circuit voltage and efficiency of the hydrogen-treated QDSCs were largely increased about 70mV and 10%, respectively.

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Enhanced open-circuit voltage of InAs/GaAs quantum dot solar cells by hydrogen plasma treatment

Abstract

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