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

6 Citations (Scopus)


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
Issue number4
Publication statusPublished - 2015 Jul 1


ASJC Scopus subject areas

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

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