Enhanced performance of flexible nanocrystalline silicon thin-film solar cells using seed layers with high hydrogen dilution

Ji Eun Lee, Donghwan Kim, Kyung Hoon Yoon, Jun Sik Cho

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Flexible hydrogenated nanocrystalline (nc-Si:H) thin-film solar cells were prepared by very high frequency plasma enhanced chemical vapor deposition (VHF-PECVD), and the effect of highly crystalline intrinsic Si seed layers at the initial growth stage of i nc-Si:H absorbers on their structural and electrical properties and on the performance of solar cells was investigated. The crystallization of i nc-Si:H absorbers was significantly enforced by the introduction of highly crystalline seed layers, resulting in the reduction of defect-dense a-Si:H grain boundary and incubation layer thickness. The open circuit voltage of the nc-Si:H solar cells with the seed layers was improved by the decrease of charged defect density in the defect-rich amorphous region.

Original languageEnglish
Pages (from-to)7891-7894
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume13
Issue number12
DOIs
Publication statusPublished - 2013 Dec 1
Externally publishedYes

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Keywords

  • Crystallization
  • Defect
  • Seed Layer
  • Silicon Thin-Film Solar Cell

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

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