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, Jung ho Park, Yoojong Lee

Research output: Contribution to journalArticle

5 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 languageEnglish
Article number041401
JournalJournal of Vacuum Science and Technology B:Nanotechnology and Microelectronics
Volume33
Issue number4
DOIs
Publication statusPublished - 2015 Jul 1

Fingerprint

hydrogen plasma
Open circuit voltage
open circuit voltage
Semiconductor quantum dots
Hydrogen
Solar cells
solar cells
quantum dots
Plasmas
Photoluminescence
photoluminescence
hydrogen
Passivation
passivity
Defects
Crystals
augmentation
defects
crystals
indium arsenide

ASJC Scopus subject areas

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

Cite this

Enhanced open-circuit voltage of InAs/GaAs quantum dot solar cells by hydrogen plasma treatment. / Kim, Hosung; Park, Minsu; Kim, Sanghyeon; Kim, Sanghyuck; Song, Jindong; Choi, Wonjun; Park, Jung ho; Lee, Yoojong.

In: Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics, Vol. 33, No. 4, 041401, 01.07.2015.

Research output: Contribution to journalArticle

Kim, Hosung ; Park, Minsu ; Kim, Sanghyeon ; Kim, Sanghyuck ; Song, Jindong ; Choi, Wonjun ; Park, Jung ho ; Lee, Yoojong. / Enhanced open-circuit voltage of InAs/GaAs quantum dot solar cells by hydrogen plasma treatment. In: Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics. 2015 ; Vol. 33, No. 4.
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