Rapid supersonic spraying of Cu(In,Ga)(S,Se)2 nanoparticles to fabricate a solar cell with 5.49% conversion efficiency

Jung Jae Park, Jong Gun Lee, Do Yeon Kim, Jong Hyuk Lee, Jae Ho Yun, Jihye Gwak, Young Joo Eo, Ara Cho, Mark T. Swihart, Salem S. Al-Deyab, Se Jin Ahn, Dong Hwan Kim, Sam S. Yoon

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


We demonstrate production of high-quality Cu(InGa)(SSe)2 (CIGSSe) films by high-rate supersonic spray deposition. This technique is unique in creating particle-based films without introducing impurities, because no additives or binders are used. The thin film deposition process was investigated computationally, to understand the pulverization of the incoming particles. These simulations were consistent with experimental observations. Grain growth was improved by adding a 300-nm copper layer atop the CIGSSe film; selenization of the resulting bilayer produced a CuSe liquid flux that assisted the sintering process. The final CIGSSe film-based solar cell had a conversion efficiency of 5.49% with Jsc = 18.73 mA/cm2, Voc = 0.488 V, and FF = 59.99% in an active area of 0.44 cm2.

Original languageEnglish
Pages (from-to)44-54
Number of pages11
JournalActa Materialia
Publication statusPublished - 2017 Jan 15


  • CIGS film
  • CIGS nanoparticle
  • Impact bonding
  • Kinetic spray
  • Supersonic flow

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys


Dive into the research topics of 'Rapid supersonic spraying of Cu(In,Ga)(S,Se)<sub>2</sub> nanoparticles to fabricate a solar cell with 5.49% conversion efficiency'. Together they form a unique fingerprint.

Cite this