Formation of MoOx barrier layer under atmospheric based condition to control MoSe2 formation in CIGS thin film solar cell

Kam Hoe Ong, Agileswari Ramasamy, Panagiota Arnou, Biancamaria Maniscalco, Jake W. Bowers, Chakrabarty Chandan Kumar, Marayati Bte Marsadek

Research output: Contribution to journalArticle

2 Citations (Scopus)


As part of the device fabrication process, selenization step is required to crystallise the CIGS absorber layer. However, during high temperature selenization process, excessive formation of MoSe2 can lead to delamination of the film and adverse effect on electrical properties of the solar cells. In this paper, a new method is proposed to form a Molybdenum Oxide (MoOx) barrier layer in between of the Mo back contact using plasma jet under atmospheric based conditions. The effect of MoOx compound (MoO2 and MoO3) towards the efficiency of the device is investigated. It has been proven that a thin layer of MoOx barrier layer is able to control the formation of MoSe2 effectively and provide a significant improvement in electrical properties of the devices. A power conversion efficiency of 5.24% with least efficiency variation across the champion device was achieved which demonstrates the importance of this methodology on small area devices.

Original languageEnglish
Pages (from-to)723-729
Number of pages7
JournalMaterials Technology
Issue number11
Publication statusPublished - 19 Sep 2018

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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