Research Areas

Nanomaterials and Devices

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Chemical Sensors

Energy Materials

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SERB Core Research Grant- CRG/2020/003465 (2020-23)

DST/AMT Grant- DST/TDT/AMT/2021/009(G)(2022-25)

CHEMICAL SENSORS

Volatile Organic Compounds and Gas Sensors 

The current research in the group is focused on the development of flexible sensors for environmental monitoring and healthcare. In ambient environment, a tiny fluctuation in humidity, pressure, or temperature can cause significant variation in chemical environment and affect the sensor’s response. The selectivity amongst VOCs/gases is also important to avoid any cross talks and false signals. For designing a real life sensor, engineered materials are required for multi-component detection at near ambient conditions of temperature and humidity. We are working on design and synthesis of surface functionalized organic-inorganic hybrid 2D nanomaterials for efficient VOC/gas detection. The challenge lies in the translation of these sensing materials in the form of a stand-alone device operating in a multi-variate environment combined with statistical analysis approach. 

Team Members at IIT Jodhpur:

 Mohit Verma, Snehraj Gaur, Dr. Sukhwinder Singh, Suchetna and Vansh Bhutani

The project is funded by: SERB, Core Research Grant-2020 

Key Publications

  1. SnO2-rGO Hybrids for Highly Selective and Sensitive NO2 Sensor Fabricated using Component Combinatorial Approach, Verma, M.; Bahuguna, G.; Shukla S. and Ritu Gupta.* 2022. (In review) 

  2. Nickel Cobaltite Nanoplates based Electrochemical Sensing Platform from Printable Inks for Simultaneous Detection of Dopamine and Uric Acid, Urgunde, A. B.,Dhamija, A., and Ritu Gupta* Chemistry - An Asian Journal, 2021, DOI: 10.1002/asia.202101166

  3. An Innovative Approach to Photo-Chemiresistive Sensing Technology: Surface Fluorinated SnO2 for VOCs Detection Bahuguna, G., Mondal, I., Verma, M., Kumar, M., Bhattacharya, S., Ritu Gupta* Giridhar U. Kulkarni ACS Applied Materials Interfaces 2020, DOI: 10.1021/acsami.0c08847, in press (IF=8.7)

  4. Ultrasensitive Organic Humidity Sensor with High Specificity for Human Physiological Monitoring Bahuguna,G., Adhikary,V., Sharma, R. K.,Gupta,R. * Electroanalysis, 32, 76-85, 2019. (IF=2.8)

  5. Metal Wire Networks functionalized with Ni Alkanethiolate for Transparent and Enzymeless Glucose Sensors Urgunde, A. B., Kumar, A., Shejale, K. P., Sharma, R. K., & Ritu Gupta* ACS Applied Nano Materials, 1, 5571–5580, 2018

  6. Cosmetically Adaptable Transparent Strain Sensor for Sensitively Delineating Patterns in Small Movements of Vital Human Organs Gupta, N., Rao, K. D. M., Srivastava, K., Ritu Gupta, Kumar, A., Marconnet, A. M., Fisher, T. S., & Kulkarni, G. U.*  ACS Applied Materials & Interfaces, 10, 44126, 2018

ENERGY MATERIALS

Development of Electrochromic Materials for Energy Efficient Windows

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Global warming and the increase in demand for energy and its consumption urge the search for novel approaches for saving energy. The majority of energy consumption in buildings comes from heating and air conditioning. To preserve a comfortable environment with saving energy, smart windows are effective solutions. They can also control the incident radiations in a room by offering outdoor views. Smart windows technology is based on electrochromic devices. In this project, we are working towards development of solution-based methods for synthesis of electrochromic materials in the form of inks that can be spray coated on the transparent conducting electrodes of 10 cm x 10 cm. The inorganic and organic hybrid materials are tuned structurally for the best performing electrochromic devices that not only have fast color switching response with high coloration and transmission modulation but also durable for long hours usage. The project also involves the development of functionalized metal mesh-ITO hybrid electrodes as transparent conducting film in place of commercial TCEs for electrochromic smart windows. 

Team Members from IIT Jodhpur:

Dr. Alok Kumar, Himanshu Nath, Dipasha Saxena, Mayank Singh Paliwal and Shivam Singh

The project is funded by: DST-Advanced Manufacturing Technologies jointly with JNCASR, Bangalore; CeNS, Bangalore and Hind High Vacuum, Bangalore.

Key Publications

  1. Scalable Fabrication of Scratch-Proof Transparent Al/F–SnO2 Hybrid Electrodes with Unusual Thermal and Environmental Stability​, Mondal, I., Bahuguna, G., Ganesha, M. K., Verma, M., Gupta, R., Singh, A. K., & Kulkarni, G. U., ACS Applied Materials Interfaces, 2020, DOI:10.1021/acsami.0c17018

  2. Scalable Production of Nickel Cobaltite Nanoplates using Solution-Processed Inks for OER Electrocatalysis, Urgunde, A. B., Bahuguna, G, Dhamija, A., Kamboj, V and Ritu Gupta* , Materials Research Bulletien, 2021DOI: 10.1016/j.materresbull.2021.111380

  3. Fabrication of Oxidation Resistant Metal Wire Network-Based Transparent Electrodes by a Spray-Roll Coating Process, S. Kiruthika, Ritu Gupta, A. Anand, A. Kumar, G. U. Kulkarni, ACS Appl. Mater. Interfaces, 7, 27215, 2015.

Research Collaborators

Prof. Hossam Haick, Technion-Israel Institute of Technology, Haifa, Israel

Dr. Prashant Kumar, The University of New Castle, Australia

Dr. Pranay Ranjan, Department of Materials and Metallurgical Engineering, IIT Jodhpur

Dr. Ashutosh Singh, CeNS, Bangalore

Dr. Kiruthika Shanmugam, Sastra University, Thanjavur, Tamil Nadu

Prof. Giridhar U. Kulkarni,  JNCASR, Bangalore 


Prof. Mukundan Thelakkat, University of Bayreuth, Germany

 
Prof. Rakesh K Sharma, Department of Chemistry, IIT Jodhpur 

Prof. Timothy S. Fisher, UCLA, USA


Prof. Saswata Bhattacharya, Department of Physics, IIT Delhi


 

Research Funding

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  • SERB Core Research Grant- CRG/2020/003465 (2020-23)

  • SERB Women Excellence Award- WEA/2020/000038 (2021-23)

  • DST Advanced Manufacturing Technology Grant- DST/TDT/AMT/2021/009 (G) (2022-25)

  • DRDO CARS (Defense Lab Jodhpur)- DLJ/TC/1025/I/69 (2021-22)

  • SERB Extra Mural Research Grant- EMR/2016/000785 (2017-2020)

  • IIT Jodhpur Seed Grant on "Thermochromic Materials for Smart WIndows" (2016-2019)

  • GIAN Short course- "Advanced Materials and Future Technologies for Solar Energy Conversion"

               Jan 2017, Course Instructor: Prof. Mukundan Thelakkat

  • GIAN Short course - "Materials for Energy Storage Devices",

               Dec 2015, Course Instructor: Prof. Timothy S. Fisher 

 


 

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