Environmental Sciences & Solar Cell

  1. Chemical Characterization and Source Apportionment of PM10 Using Receptor Models over the Himalayan Region of India. Nikki Choudhary, Akansha Rai, Jagdish Chandra Kuniyal, Priyanka Srivastava, Renu Lata, Monami Dutta, Abhinandan Ghosh, Supriya Dey, Sayantan Sarkar, Sakshi Gupta, Sheetal Chaudhary, Isha Thakur, Archana Bawari, Manish Naja, Narayanasamy Vijayan, Abhijit Chatterjee, Tuhin Kumar Mandal, Sudhir Kumar Sharma, Ravindra Kumar Kotnala, Atmosphere, MDPI, Vol. 14, Issue 5, 880, 2023.
  2. Production and Certification of Toxic Metal-Induced Basmati Rice: An Indigenous Cultivated Rice CRM/BND, Praveen Kumar Yadav, S Swarupa Tripathy, Harish Chandra, Lakhan Taneja, Chinky Kochar, Anuj Krishna, Jyoti Pokhariyal, Dibya Dolridge Toppo, Sunita Raina, Nahar Singh, Bhupinder Singh, Ravindra Kumar Kotnala, MAPAN, Springer India, Pages1-11, 2023.
  3. Variations in chemical composition of aerosol during Diwali over mega city Delhi, India, G Kotnala, M Kumar, AK Sharma, SK Dhaka, R Gadi, C Ghosh, M Saxena, SK Sharma, AR Saha, A Nautiyal, A Sharma, C Sharma, RK Kotnala, TK Mandal, Urban Climate 40, 100991, 2021.
  4. Seasonal Transport Pathway and Sources of Carbonaceous Aerosols at an Urban Site of Eastern Himalaya, A Rai, S Mukherjee, N Choudhary, A Ghosh, A Chatterjee, TK Mandal, SK Sharma, RK Kotnala, Aerosol Science and Engineering 5 (3), 318-343, 2021.
  5. Evidence of the presence of SARS‐CoV‐2 virus in atmospheric air and surfaces of a dedicated COVID hospital, A Dubey, G Kotnala, TK Mandal, SC Sonkar, VK Singh, SA Guru, A Bansal, M Irungbam, F Husain, B Goswami, R K Kotnala, S Saxena, S K Sharma, K N Saxena, C Sharma, S Kumar, D K Aswal, V Manchanda, B C Koner, Journal of Medical Virology 93 (9), 5339-5349, 2021.
  6. Particulate matter sampler, SG Aggarwal, P Patel, CJ Tsai, D Soni, K Singh, RK Kotnala, T Okuda, PK Gupta, VN Ojha, DK Aswal,US Patent 10,782,212, 2020.
  7. Emergence of blue sky over Delhi due to coronavirus disease (COVID-19) lockdown implications, G Kotnala, TK Mandal, SK Sharma, RK Kotnala, Aerosol Science and Engineering 4 (3), 228-238, 2020.
  8. Photochemistry of ozone over urban area: a case study for Delhi City, R Masiwal, C Sharma, DK Shukla, D Sethi, SR Radhakrishnan,  RK Kotnala, BC Arya, Indian Journal of Physics 93 (4), 415-425, 2019.
  9. Investigating daytime and night-time differences with the seasonal trend and sources of inorganic fine aerosols in Indo-Gangetic plain, S Chandra, MJ Kulshrestha, B Kumar, RK Kotnala, Journal of Earth System Science 128 (2), 1-17, 2019.
  10. Simultaneous measurements of ambient NH3 and its relationship with other trace gases, PM2. 5 and meteorological parameters over Delhi, India, MP George, SK Sharma, TK Mandal, RK Kotnala, MAPAN 34 (1), 55-69, 2019.
  11. Physico-chemical characterization of individual Antarctic particles: implications to aerosol optics, V Goel, SK Mishra, N Lodhi, S Singh, A Ahlawat, B Gupta, RM Das,  RK Kotnala, Atmospheric Environment 192, 173-181, 2018.
  12. Stable carbon and nitrogen isotopic composition of PM10 over Indo-Gangetic Plains (IGP), adjoining regions and Indo-Himalayan Range (IHR) during a winter 2014 campaign, A Sen, SG Karapurkar, M Saxena, DM Shenoy, A Chaterjee, Anil K Choudhuri, T Das, AH Khan, JC Kuniyal, S Pal, DP Singh, SK Sharma, RK Kotnala, TK Mandal, Environmental Science and Pollution Research 25 (26), 26279-26296, 2018.
  13. Assessment of satellite-retrieved surface UVA and UVB radiation by comparison with ground-measurements and trends over Mega-city Delhi, S Singh, NK Lodhi, AK Mishra, S Jose, SN Kumar, RK Kotnala, Atmospheric Environment 188, 60-70, 2018.
  14. A non-destructive FTIR method for the determination of ammonium and sulfate in urban PM2. 5 samples, V Goel, SK Mishra, C Sharma, B Sarangi, SG Aggarwal, R Agnihotri, RK Kotnala, Mapan 33 (3), 209-215, 2018.
  15. Effect of reduced traffic density on characteristics of particulate matter over Delhi, V Goel, SK Mishra, A Ahlawat, C Sharma, N Vijayan, SR Radhakrishnan, AP Dimri, RK Kotnala, Current Science 115 (2), 315-319, 2018.
  16. Experimental investigation of variations in morphology, composition and mixing-state of boundary layer aerosol: A balloon based study over urban environment (New Delhi), SK Mishra, A Ahlawat, D Khosla, C Sharma, M Prasad, S Singh, B Gupta,  D Sethi, PR Sinha, DK Ojha, A Wiedensohler, RK Kotnala, Atmospheric Environment 185, 243-252, 2018.
  17. Ultrafast adsorption of organic dyes by activated-carbon@Fe3O4nanoscale composites: An effective solution for water purification, P Saini, R Sharma, RP Pant, RK Kotnala, NISCAIR-CSIR, India, 2018.
  18. Ionospheric Response to St. Patrick’s Day Storm of 2015 Over Indian Region: Ionosonde and All-Sky Imager Observations, S Gupta, AK Upadhayaya, AK Taori, RK Kotnala, AGU Fall Meeting Abstracts 2017, SA51B-2396, 2017.
  19. Anomalous Ionospheric signatures observed at low-mid latitude Indian station Delhi prior to earthquake events during the year 2015 to early 2016, AK Upadhayaya, S Gupta, RK Kotnala, AGU Fall Meeting Abstracts 2017, NH51B-0129,2017.
  20. Three Dimensional Characterization of Typical Urban and Desert Particles: Implications to Particle Optics, V Goel, S Mishra, AS Ahlawat, C Sharma, RK Kotnala, AGU Fall Meeting Abstracts 2017, A51G-2158, 2017.
  21. Variation of Ambient Ammonia Pollution in Relation With PM Characteristics in Winter of Delhi, India, M Saxena, TK Mandal, RK Kotnala, SK Sharma, AGU Fall Meeting Abstracts, A53B-2242, 2017.
  22. Laser synthesized magnetically recyclable titanium ferrite nanoparticles for photodegradation of dyes, A Shukla, AK Bhardwaj, BK Pandey, SC Singh, KN Uttam, J Shah, RK Kotnala, R Gopal, Journal of Materials Science: Materials in Electronics 28 (20), 15380-15386, 2017.
  23. Morphology, mineralogy and mixing of individual atmospheric particles over Kanpur (IGP): relevance of homogeneous equivalent sphere approximation in radiative models, SK Mishra, N Saha, S Singh, C Sharma, M Prasad, S Gautam, A Misra, Abhishek Gaur, Deepika Bhattu, Subhasish Ghosh, Anubhav Dwivedi, Rosalin Dalai, Debajyoti Paul, Tarun Gupta, Sachchida N Tripathi, RK Kotnala, Mapan 32 (3), 229-241, 2017.
  24. Size-segregated sugar composition of transported dust aerosols from Middle-East over Delhi during March 2012, S Kumar, SG Aggarwal, PQ Fu, M Kang, B Sarangi, D Sinha, RK Kotnala, Atmospheric Research 189, 24-32, 2017.
  25. Graphene based porous magnetic aerogel powder for removal of methylene blue from waste water, R Sharma, RK Kotnala, P Saini, J. Environ. & Biotechnol. Res 6 (1), 146-150, 2017.
  26. Magnetic nanoparticles decorated activated carbon nanocomposites for purification of water, P Saini, M Arora, RK Kotnala, SK Barala, RP Pant, P Chandni, US Patent App. 15/026,101, 2016.
  27. SEM-EDS and FTIR characterization of aerosols during Diwali and Post Diwali festival over Delhi: implications to human health, SK Mishra, D Khosla, M Arora, C Sharma, M Prasad, SG Aggarwal, Beena Gupta, Soman R Radhakrishnan, Randeep Guleria, RK Kotnala, J. Environ. Nanotechnol 5 (4), 12-26, 2016.
  28. GdPO4: Eu3+ nanoparticles with intense orange red emission suitable for solar spectrum conversion and their multifunctionality, V Kumar, S Singh, RK Kotnala, S Chawla, Journal of luminescence 146, 486-491, 2014.
  29. Facile green synthesis of nickel nanostructures using natural polyol and morphology dependent dye adsorption properties, A Ghosal, J Shah, RK Kotnala, S Ahmad, Journal of Materials Chemistry A 1 (41), 12868-12878, 2013.
  30. Chemical and biological extraction of metals present in E waste: A hybrid technology, DPDJMKU, RK Kotnala, Waste Management 32 (5), 979-990, 2012.
  31. The effect of heat treatment on redistribution of fast diffusing impurities in polycrystalline silicon, R Kumar, RK Kotnala, NK Arora, BK Das, Journal of applied physics 64 (2), 942-944, 1988.
  32. Effect of heat treatment on redistribution of hydrogen in directionally cast polycrystalline silicon, R Kumar, RK Kotnala, NK Arora, BK Das, Applied physics letters 52 (20), 1670-1671, 1988.
  33. Kinetics of oxygen diffusion to the grain boundary in oxygen-rich directionally cast silicon bicrystals, R Kumar, RK Kotnala, NK Arora, BK Das, Solar Cells 23 (3-4), 173-179, 1988.
  34. Studies of heterojunction solar cell formed with indium-doped Zn/sub 0. 2/Cd/sub 0. 8/S solution grown films on p-type silicon, RK Kotnala, GK Padam, Conference Germany, Web, 1987.
  35. Diffused junction optimization in silicon solar cells by a photochemical method, NP Singh, SN Singh, NK Arora, RK Kotnala, BK Das, Solar cells 11 (3), 293-299.
  36. On the majority carrier collection in p+-p-n+ and n+-p-p+ silicon solar cells, SN Singh, RK Kotnala, GC Jain, Solar cells 11 (1), 87-95, 1984.
  37. Temperature dependence of electrical transport properties of n‐type solar grade polycrystalline silicon, PC Mathur, RP Sharma, R Shrivastava, P Saxena, RK Kotnala, Journal of applied physics 54 (7), 3913-3920, 1983.
  38. Diffusion length determination in n+-p+-p+ structure based silicon solar cells from the intensity dependence of the short-circuit current for illumination from the p+ side, GC Jain, SN Singh, RK Kotnala, Solar cells 8 (3), 239-248, 1983.
  39. Surface doping and thickness of front and back regions of p+-n-n+ silicon solar cells fabricated by simultaneous diffusion of boron and phosphorous into n-silicon, RK Kotnala, SN Singh, M Annamalai, MV Iyer, KA Nirmala, P Venkatesh, CR Prasad, C Subramani, 1982.
  40. Fabrication of P+NN+ silicon solar cells by simultaneous diffusion of boron and phosphorus into silicon through silicon dioxide, GC Jain, SN Singh, RK Kotnala, NK Arora, Journal of Applied Physics 52 (7), 4821-4824, 1981.