Electrochemically synthesized faceted CuInTe2 nanorods as an electron source for field emission applications
| Title | Electrochemically synthesized faceted CuInTe2 nanorods as an electron source for field emission applications |
| Publication Type | Journal Article |
| Year of Publication | 2018 |
| Authors | Lakhe, MG, Joshi, P, Choudhary, RJ, Ganesan, V, Joag, DS, Chaure, NB |
| Journal | New Journal of Chemistry |
| Volume | 42 |
| Issue | 7 |
| Pagination | 5284-5294 |
| Date Published | APR |
| Abstract | Herein, CuInTe2 (CIT) thin films with faceted nanorod-like morphology have been synthesized on a flexible molybdenum foil using a water-based low-cost electrodeposition technique. The co-deposition potential for CIT was optimized using cyclic voltammetry with respect to that of the Ag/AgCl reference electrode, and films were deposited from -0.6 V to -0.9 V at the working temperature of 75 degrees C. The as-prepared CIT films exhibited an amorphous nature, whereas the RTP-annealed films exhibited a highly crystalline chalcopyrite nature as a function of the growth potential. A red shift was observed in the Raman spectra of the as-deposited films that shifted towards the original position upon annealing. The Cu/In ratio obtained by the EDS analysis was found to decrease systematically upon increasing the growth potential. X-ray photoelectron spectroscopy (XPS) studies revealed the presence of Cu+, Cu2+ satellites, In3+, Te2-, and Te4+ states of Cu, In, and Te. The field emission study showed a maximum current density of 1.74 mA cm(-2), which was attainable at an applied electric field of 1.5 V mu m(-1). The turn-on field was found to be 0.92 V mu m(-1), comparable to that of the carbon nanofibres. The emitter exhibited stable electron emission over a period of 3 hours. The faceted CIT nanorods with columnar growth are a potential candidate for application as an electron source, and herein, the field emission of CIT nanorods is reported for the first time. |
| DOI | 10.1039/c7nj04773h |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.269 |
Divison category:
Physical and Materials Chemistry
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