Educational Qualificatiions

Highlights of  research work done :

• Study of Upconversion Luminesecnce in Er doped Bi₄Ti₃O₁₂ Ceramics.
• Synthesis and characterization of Er-Yb doped Bi₄Ti₃O₁₂ Ceramics and its effect on electrical and luminescence properties.
• Synthesis and characterization of triply substituted Er-Yb-W doped Bi₄Ti₃O₁₂ ceramics and its effect on Ferroelectric, Dielectric and Up-conversion luminescence properties
• To study optical temperature sensing application in Er/Er-Yb/Er-Yb-W Bi₄Ti₃O₁₂ ferroelectric ceramics.

Publications :

1. Narwan M., Sharma R., Bokolia R. (2024). Optical temperature sensing and upconversion luminescence in Er³⁺/Yb³⁺ co-doped BNT ferroelectric ceramic. Applied Physics A. 130, 854. Impact Factor: 2.8
2. Basith A., Singh S., Banwal A., Narwan M., Verma M., Bokolia R. (2024). Regulating novel tunable green to red upconversion luminescence in Er³⁺/Yb³⁺ co-doped SrBi₂Nb₂O₉ ferroelectric ceramic. Ceramics International. 50, (24) A, 52344-52355. Impact Factor: 5.6
3. Varshney M., Soni S., Banwal A., Narwan M., Verma M., Bokolia R. (2024). Effect of Er³⁺ ion incorporation on the structural, photoluminescence, and ferroelectric properties of K_0.5Na_0.5NbO₃ ceramic for optoelectronic applications. Applied Physics A. 130, 267. Impact Factor: 2.8
4. Sherawat V., Sinha R. K., Bokolia R. (2024). Pressure-dependent bandgap characteristics in photonic crystals with sensing applications. Journal of Optics. 26 (8), 085004. Impact Factor: 2.7(certificate only)
5. Banwal A., Kumar B., Verma M., Shandilya A., Singh B., Bokolia R. (2024). Improved Optical Characteristics in BaBi₂Nb₂O₉ Ferroelectric Ceramic Infused with Transition Metal Ion (W⁶⁺) and Rare Earth Ions (Er³⁺/Yb³⁺). Journal of Luminescence. 275, 120809. Impact Factor: 3.6 
6. Banwal A., Verma M., Singh B., Bokolia R. (2024). Temperature stability and improved energy storage efficiency of BaBi₂Nb₂O₉: Er/Yb relaxor ferroelectric ceramic under moderate electric fields. Applied Physics A. 130, 334. Impact Factor: 2.8 
7. Sangwan S., Meena R., Bokolia R., Vinod Singh, Deshraj Meena (2024). Exploration of structural and dielectric properties of orthorhombic Ta₂O₅ nanoplatelets towards the potential optoelectronic devices. Materials Today Communications. 38, 108468. Impact Factor: 3.7 
8. Narwan M., Banwal A., Sharma R., Bokolia R. (2024). Non-invasive thermal sensing and improved recoverable energy storage density of Bi_0.5Na_0.5TiO₃: Er³⁺ doped multifunctional ferroelectric ceramic. Journal of Luminescence. 265, 120236. Impact Factor: 3.6 
9. Singh V., Rana S., Bokolia R., Panwar A. K., Meena R., Singh B. (2024). Electrospun PVDF-MoSe2 nanofibers based hybrid triboelectric nanogenerator for self-powered water splitting system. Journal of Alloys and Compounds. 978, 173416. Impact Factor: 6.3

1. Renuka Bokolia, O.P. Thakur, Vineet K. Rai, S.K. Sharma K.Sreenivas, Dielectric, Ferroelectric and Photoluminescence Properties of Er³⁺ Doped Bi₄Ti₃O₁₂ Ferroelectric Ceramics,  Ceramics International 41 (2015) 6055-6066.

2. Renuka Bokolia, O.P. Thakur, Vineet K. Rai, S.K. Sharma K. Sreenivas, Electrical properties and light up conversion effects in Bi_3.79Er_0.03Yb_0.18Ti_3−xW_xO₁₂ ferroelectric ceramics, Ceramics International 42 (2016) 5718-5730.

3. Renuka Bokolia,  Manisha Mondal, V.K. Rai  and K. Sreenivas, Enhanced infrared-to-visible up-conversion emission and temperature sensitivity in (Er³⁺,Yb³⁺, and W⁶⁺) tri-doped Bi₄Ti₃O₁₂ ferroelectric oxide, Journal of Applied Physics, 121 (9) (2017).

4. Mukhopadhyay L., Rai V.K., Bokolia R., and Sreenivas K.  980 nm excited Er³⁺/Yb³⁺/Li⁺/Ba²⁺: NaZnPO₄ up-converting phosphors in optical thermometry, Journal of Luminescence, 187, (2017) 368-377,

5.  Renuka Bokolia, Lalita Chauhan , V.K Rai and K. Sreenivas “Structural and light up- conversion luminescence properties of Er³⁺-Yb³⁺-W⁶⁺ substituted    Bi₄Ti₃O₁₂,” AIP Conf. Proc. 1731 140042 (2016)

6.  Renuka Bokolia and K. Sreenivas, Up-Conversion Luminescence Properties In Bi_3.79Er_0.03Yb_0.18Ti_3-xW_xO₁₂ Ceramics , Advanced Science Letters 22 (11) 2016 3876-3878.

7. Lalita Chauhan, Renuka Bokolia, and K. Sreenivas, Microstructural changes in NiFe₂O₄ ceramics prepared with powders derived from different fuels in sol-gel auto-combustion technique,” AIP Conf. Proc. 1731 140043 (2016).

8. Renuka Bokolia and P.D. Sahare , Effect of particle size on the Thermoluminescence properties ofBa_0.97Ca_0.03SO₄: Cu”, AIP Conf. Proc. 1512 446 (2013).

Conferences and workshops attended and participated:

1. 60^th DAE- Solid State Physics Symposium(Presented paper in poster presentation on “Structural and light up-conversion luminescence properties of Er³⁺-Yb³⁺-W⁶⁺ substituted    
    Bi₄Ti₃O₁₂,” Renuka Bokolia, Lalita Chauhan, V.K Rai and K. Sreenivas , Amity University,Amity, Uttar  Pradesh, 21-25 December 2015.

2.   60^th DAE- Solid State Physics Symposium (Presented paper in poster presentation on “Microstructural changes in NiFe₂O₄ ceramics prepared with powders derived from different fuels
       in sol-gel auto-combustion technique,” Lalita Chauhan, Renuka Bokolia, and K. Sreenivas , Amity University, Amity, Uttar  Pradesh, 21-25 December 2015.

3.   8^th National Conference on Thermophysical Properties (Presented paper in poster presentation on “Up-Conversion Luminescence Properties In Bi_3.79Er_0.03Yb_0.18Ti_3-xW_xO₁₂
      Ceramics,” Renuka Bokolia and K. Sreenivas, MNIT Jaipur,14-16 December 2015.
4.   1st Indo –UK seminar on Recent Advances in Chemical Sensors (UGC- UKIERI IUCRACS-2014), Gargi College Siri Fort Road, New Delhi, 10-11 February2014 (Poster Presentation).

5.    National Workshop on Ion Beams in Material Research, MNIT Jaipur, 22-23 March 2013.

6.   Workshop on Advanced Materials for the Future Energy Requirements (WAMFER 2012) November 29 - December 1, 2012, University of Delhi,   Delhi, India.

7.  Advanced Workshop on broad band dielectric spectroscopy, 17-18 January 2014 University of Delhi, Delhi, India.
8.   57^th DAE- Solid State Physics Symposium, IIT Bombay, Maharashtra, 3^rd-7^th December 2012.