Journal
SILICON
Volume 14, Issue 13, Pages 8193-8203Publisher
SPRINGER
DOI: 10.1007/s12633-021-01578-3
Keywords
JNS pyrolysis; Monoclinic phase; CuO; Thin film; Electrical conductivity
Funding
- King Khalid University, Abha, Saudi Arabia [RGP-1/249/42]
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The jet nebulizer spray pyrolysis method is used to grow CuO thin films at different substrate temperatures, and the results show the strong influence of substrate temperature on the properties of the films, such as crystallite size, bandgap, and electrical conductivity.
The jet nebulizer spray (JNS) pyrolysis method has been successfully employed to grow CuO thin films at various substrate temperatures, ranging from 300 to 600 degrees C. The XRD analyses revealed the monoclinic phased polycrystalline growth of the samples and exhibited the strong influence of substrate temperature (ST) on the crystallite sizes. Optical transmission and bandgap studies also showed that sample bandgaps clearly rely upon the growth temperatures. The SEM micrographs displayed the agglomerated growth of particles having golf ball-like structures. The occurrence of Cu and 0 in the samples were confirmed through EDS analyses. The studies on DC electrical conductivities (I-V curves) also show strong dependency on the ST. A p-CuO/n-Si diode was fabricated at the ST of 600 degrees C and the diode parameters like barrier height (phi(b)) and ideality factor (n) were determined under light and dark conditions.
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