The difficulty in densification easily occur in CIGS thin film absorber fabrication using the non-vacuum process. A novel process is developed in this study to achieve dense, crack-free and large-grained CIGS films by blending submicron-sized particles with nanoparticle suspensions. The addition of slow-sintering submicron-sized particles to the nanoparticle suspensions effectively inhibits crack generation and small grain development in the film microstructure. The submicron-sized particles addition to nanoparticle suspension effect on the microstructure and electrical properties are investigated using scanning electron microscopy, X-ray diffraction, UV-Vis-NIR, Raman spectroscopy and Hall-effect analyzer. A homogeneous dense microstructure with a large grain size and good electric properties can be obtained as the submicron-sized particles ratio to nanoparticles approaches 3:7.
|Number of pages||7|
|Journal||International Journal of Applied Ceramic Technology|
|Publication status||Published - 2019 May 1|
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry