@article {48047,
	title = {Tuning of work function of ZnO by doping and co-doping: an investigation using X-ray photoelectron spectroscopy},
	journal = {Thin Solid Films},
	volume = {761},
	year = {2022},
	month = {NOV},
	pages = {139538},
	type = {Article},
	abstract = {<p>
	The shift in the work function of the ZnO thin film upon varying codoping ratio has been investigated by X-ray photoelectron spectroscopy. A notable shift of 0.2 eV in the work function was achieved in the films when the Al: In doping ratio was changed from 0:10 to 10:0. The elemental composition of the dopants obtained from XPS analysis showed the presence of more amount of In dopant than Al in codoped ZnO films. In this way a clear understanding of the variation in electrical properties on dopant ratio is obtained. A decrease in work function was also observed with the increase in free carrier concentration when the codopant ratio is changed. The effects of Burstein moss, band narrowing, and band renormalization observed in the bandgap were explained by an upward and downward shift of valence band maxima of the corresponding thin films. The controllable work function of the codoped ZnO films by varying the doping ratio offers excellent potential advantages in optoelectronic devices.</p>
},
	keywords = {Indium -Aluminum co -doping, Spray coating, thin film, Work function, X-ray photoelectron spectroscopy, Zinc oxide},
	issn = {0040-6090},
	doi = {10.1016/j.tsf.2022.139538},
	author = {Soumya, K. and Selvam, I. Packia and Vinod, C. P. and Potty, S. N.}
}
@article {49793,
	title = {Tunable, amine-functionalized porous silica catalyst for CO2 transformation into cyclic organic carbonates at atmospheric pressure},
	journal = {Chemistry-A European Journal},
	volume = {31},
	year = {2025},
	month = {AUG },
	type = {Article},
	abstract = {<p>
	A silica catalyst with characteristic features of broad pore size distribution, large pore width and tunable basic sites was synthesized by a one-step green co-condensation synthesis method analogous to SBA-15 synthesis. The surface chemical features of the above catalyst were explored by XPS, N-2 and CO2 adsorption and desorption experiments. The catalyst showed 90\% conversion of styrene oxide (SO) with nearly complete selectivity toward styrene carbonate (SC) in 7 hours under a solvent-free condition at a temperature of 120 degrees C with the aid of co-catalyst tetrabutylammonium bromide (TBAB). Moreover, the catalyst demonstrates versatility with various epoxide substrates, providing valuable insights into the cycloaddition reaction under ambient pressure conditions involving carbon dioxide. The mechanistic details of the catalytic conversion were investigated by the in-situ DRIFT studies and reported here.</p>
},
	keywords = {CO2 fixation, cyclic organic carbonates, heterogeneous catalysis, in-situ FTIR},
	issn = {0947-6539},
	doi = {10.1002/chem.202500873},
	author = {Gorai, Twinkle and Thanasekar, Chandragopal and Kumar, Pawan and Babu, Athira and Kurungot, Sreekumar and Vinod, C. P.}
}
