Soumen Dhara and P. K. Giri, "Enhanced ultraviolet photocurrent response from rapid thermal annealed ZnO nanowires", International Conference on Materials for Advanced Technologies (ICMAT 2011), June 26-July 1st, 2011, Suntec, Singapore.

Batakrushna Santra, Bappaditya Pal and P. K. Giri, "Strong room temperature ferromagnetism in Co-doped anatase TiO2 nanoparticles grown by a ball milling method", International Conference on Materials for Advanced Technologies (ICMAT 2011), June 26-July 1st, 2011, Suntec, Singapore.

Dilip k. Singh and P. K. Giri, "Identification of defect induced intermediate frequency modes in Raman spectra of single walled Carbon nanotubes", International Conference on Materials for Advanced Technologies (ICMAT 2011), June 26-July 1st, 2011, Suntec, Singapore.

Soumen Dhara and P. K. Giri, "Rapid thermal annealing induced enhanced near band-edge emission from ZnO nanowires, nanorods and nanoribbons", International Conference on Fundamental and Applications of Nanoscience and Technology (ICFANT 2010), December 9-11th, 2010, Kolkata, India.

Bappaditya Pal, Soumen Dhara, Pankaj Mishra and P. K. Giri, "Studies on structure, magnetic and optical properties of Co-doped ZnO Nanowires", International Symposium on Advances in Nanomaterials (ANM 2010), December 6-7th, 2010, Kolkata, India.

Soumen Dhara and P. K. Giri, "Studies on photocarrier transport mechanism in ZnO nanowires grown by vapor-liquid-solid method", International Symposium on Advances in Nanomaterials (ANM 2010), December 6-7th, 2010, Kolkata, India.

Soumen Dhara and P. K. Giri, "Self-catalytic growth of straight Si nanowires with high aspect ratio on Si(100) substrate by simple sputter deposition", 8th International  Nanotechnology Symposium-New Ideas for Industry (Nanofair 2010), July 6-7th, 2010, Dresden, Germany.

Bappaditya Pal and P. K. Giri,"Cobalt doping of ZnO nanoparticles by ball milling: enhanced UV luminescence and room temperature ferromagnetism", 3rd International conference on NANO-structures SElf-Assembly (NANOSEA 2010), Cassis June 28th-July 2nd, 2010, Cassis, France.

Soumen Dhara and P. K. Giri,"Microstructure and optical properties of freestanding Si nanocrystals", 3rd International conference on NANO-structures SElf-Assembly (NANOSEA 2010), Cassis June 28th-July 2nd, 2010, Cassis, France.

Dilip K. Singh, Parameswar K. Iyer and P. K. Giri, "Spectroscopic studies of structural defects and Raman vibrational modes of low energy ion-irradiated carbon nanotubes", International Conference on Perspectives in vibrational spectroscopy (ICOPVS 2010), February 21-24th, 2010, Varanasi, India.

Soumen Dahara and P. K. Giri,"Effect of ZnO nanopowder source and growth temperature on the shape evolution of one-dimensional ZnO nanostructures", International Conference on Nanoscience and Technology (ICONSAT 2010) , February 17-20th, 2010, Mumbai, India.

Soumen Dhara and P. K. Giri, "Effect of growth temperature on the catalyst free growth of long silicon nanowires using radio frequency magnetron sputtering", International Conference on Advanced Nanomaterials and Nanotechnology (ICANN 2009), December 9-11th, 2009, Guwahati, India.

Soumen Dhara and P. K. Giri, "Temperature dependence of shape evolution in one-dimensional ZnO nanostructure grown from ZnO nanopowder source: vapour-liquid-solid vs. vapor-solid growth mechanisms", International Conference on Advanced Nanomaterials and Nanotechnology (ICANN 2009), December 9-11th, 2009, Guwahati, India.

R. Chakraborty, S. Dhara and P. K. Giri, "Effect of rapid thermal annealing on microstructure and optical properties of ZnO nanorods", International Conference on Advanced Nanomaterials and Nanotechnology (ICANN 2009), December 9-11th, 2009, Guwahati, India.

Bappaditya Pal and P. K. Giri, "Room temperature ferromagnetism in Co doped ZnO nanoparticles: Milling time dependence and annealing effect", International Conference on Advanced Nanomaterials and Nanotechnology (ICANN 2009), December 9-11th, 2009, Guwahati, India.

Dilip K. Singh, P. K. Iyer and P. K. Giri,"Defect evolution and structural improvement in low energy ion irradiated carbon nanotubes: Microscopic and spectroscopic studies", International Conference on Advanced Nanomaterials and Nanotechnology (ICANN 2009), December 9-11th, 2009, Guwahati, India.

Dilip K. Singh, P. K. Iyer, P. K. Giri, "Improved chemical synthesis of graphene using a safer solvothermal route", International Conference on Advanced Nanomaterials and Nanotechnology (ICANN 2009), December 9-11th, 2009, Guwahati, India.

P. K. Giri, Satchi Kumari, "Nanocrystal and interface defects related photoluminescence from Germanium-rich SiO2 thin films",  7th International  Nanotechnology Symposium- New Ideas for Industry (Nanofair 2009), May 26-27th, 2009, Dresden, Germany.

P. K. Giri, Prabhakar Palni, and Dilip K. Singh, "Effect of ZnO Seed Layer on the Catalytic Growth of ZnO Multipods and Aligned ZnO Nanorods", 7th International  Nanotechnology Symposium-New Ideas for Industry (Nanofair 2009), May 26-27th, 2009, Dresden, Germany.

B. K. Panigrahi, P. Santhana Raman, K. Saravanan, K. G. M. Nair and P. K. Giri, "Ion beam synthesis and optical properties of embedded semiconducting  nanoclusters : Ge, SiC, InN, In2O3 and ZnO",  Indo-French conference on Nano-Structuring by Ion Beams, February 26-Mar 1st, 2009, Bhubaneswar, India.

P. K. Giri, Satchi Kumari and D. K Goswami, "Low energy oxygen implantation induced improved crystallinity and optical properties of surface modified ZnO single crystals", 2nd International conference on Physics at Surfaces and interfaces (PSI 2009) , February 23-27th 2009, Puri, India.

P. K. Giri, Satchi Kumari, Dilip K. Singh, "Microstructure and optical properties of Ge/GeO2 core-shell nanoparticles synthesized by ball milling", Second International Conference on Frontiers in Nanoscience and Technology (Cochin Nano 2009) January 4-6th, 2009, Cochin India.

Prabhakar Palni and P. K. Giri, Anushree Roy, "Catalyst free growth and characterization of highly aligned ZnO nanorod arrays", Second International Conference on Frontiers in Nanoscience and Technology (Cochin Nano 2009) January 4-6th, 2009, Cochin India.

Ritun Chakraborty, P. K. Giri, Anushree Roy, "Effect of milling time on the mechanochemical synthesis of ZnO nanorods and studies of its optical properties", Second International Conference on Frontiers in Nanoscience and Technology (Cochin Nano 2009) January 4-6th, 2009, Cochin India.

Dilip  K. Singh, Parameswar K. Iyer, P. K. Giri, "Low energy Ar+ ion irradiation induced improvement in structural and optical properties of single walled carbon nanotubes", International Conference on Transport and Optical  Properties of Nanomaterials (ICTOPN 2009) January 5-8th, 2009, Allahabad, India.

Dilip K. Singh, Parameswar K. Iyer, P. K. Giri, "Quantitative analysis of diameter distribution of multi-walled carbon nanotubes using X-ray diffraction and Raman spectroscopy", International Conference on Transport and Optical Properties of Nanomaterials January 5-8th, 2009, Allahabad, India. [also at AIP conf. Proc. 1147, 450 (2009)]

Ritun Chakraborty, P. K. Giri, P. K. Iyer,"Comparative studies on the optical properties of ZnO nanorods synthesized via mechanochemical and chemical route", International conference on advances in nanotechnology, November 6-8th 2008, Raipur, India.

Prabhakar Palni, Satchi Kumari, P. K. Giri, "Effect of zinc oxide seed layer on the growth of well aligned zinc oxide nanorods by vapor liquid solid method", Proc. Nantional seminar on Advanced Nanomaterials and its Applications, August 8-9th, 2008, Kolkata, India, pp-63.

P. K, Giri, S. Bhattacharyya, R. Kesavamoorthy, B. K. Panigrahi, and K.G.M. Nair, "On the origin of strong ultraviolet and visible light emission from Ge nanocrystals embedded in SiO2 matrix", International Conference on Nanoscience and Technology (ICONSAT-2008), February 27-29th, 2008, Chennai, India.

Satchi Kumari, Dilip K Singh, and P. K. Giri, "Strain Anisotropy in Freestanding Germanium Nanoparticles Synthesized by Ball Milling", International Conference on Nanoscience and Technology (ICONSAT-2008), February 27-29th, 2008, Chennai, India.

Dilip K. Singh, P.K.Iyer, P. K. Giri, "Correlation of structural defects and optical properties of carbon nanotubes", International Conference on Nanoscience and Technology (ICONSAT-2008), February 27-29th, 2008, Chennai, India.

Prabhakar P. Palni, Satchi Kumari, Neeraj Garg Baruah, Dilip K Singh, P. K. Giri,"Growth of high quality ZnO nanowires using catalytic vapor-deposition and its characterization", Proc. 52nd DAE Solid State Physics Symposium, Mysore, India, Ed. Amitabh Das, Meenakshi Sunder and Shiv Kumar Gupta, 52, 277 (2007).

D. K. Singh, P. K. Iyer, and P. K. Giri, "Study of fluorescence quenching effect of carbon nanotubes", Proc. 52nd DAE Solid State Physics Symposium, Mysore, India, Ed. Amitabh Das, Meenakshi Sunder and Shiv Kumar Gupta, 52, 347 (2007).

P. K. Giri, Dilip K. Singh, R. Kesavamoorthy, B. K. Panigrahi and K. G. M. Nair, "Correlating the microstructural and photoluminescence properties of ZnO nanoparticles prepared by ball milling", Proc. 14th International Workshop on Physics of Semiconductor Devices (IWPSD2007), Mumbai, India. December 16-20, 2007. (also at IEEE Proc. 2007, p. 905).

Prabhakar Palni, Sachi Kumar, Dilip K Singh, R.V.M. Naidu and P. K. Giri, "Effect of growth conditions on the structural and optical properties of ZnO thin films grown by RF sputter deposition", 10th International Conference on Advanced Materials (ICAM 2007), Bangalore, India. October 8-13, 2007.

Dilip K. Singh, Parameswar K. Iyer and P. K. Giri, "Improved chemical synthesis of multiwalled carbon nanotubes", Proc. International Conference on Advanced Nanomaterials (ANM2007), January 8-10th, 2007, Mumbai, India.

Dilip K. Singh, Parameswar K. Iyer and P. K. Giri, "Functionalization of carbon nanotubes and study of its optical and structural properties", International Conference of Nanotechnology Materials and Methods, June 23-25th, 2006, Coimbatore, India.

D. K. Singh, P. K. Giri and R. Kesavamoorthy, "Visible photoluminescence from single walled and multiwalled carbon nanotubes: Role of impurities", 8th International Conference on Nanostructured Materials, August 20-25th, 2006, Bangalore, India.

Kaustuv Datta, Satchi Kumari, Dilip K. Singh and P. K. Giri, "Synthesis and studies of isolated germanium nanoparticles in the quantum confinement regime″" International Conference on Lasers and Nanomaterials, November 30-December 2nd, 2006, Kolkata, India.

P. K. Giri, Kaustuv Das, R. Kesavamoorthy, S. K. Ray, "Raman scattering and photoluminescence studies on the Ge nanocrystals prepared by radio-frequency sputter deposition technique", Proc. International Conference on MEMS and Semiconductor Nanotechnology, Kharagpur, India, Ed. S. K. Ray p. 123 (2005).

S. Bhattacharya, P. K. Giri, B. K. Panigrahi, A. Srinivasan, "Studies on zinc oxide nanoparticles prepared by ball milling", Proc. National Conference on Advanced Characterization Techniques on Nanomaterials, August. 24-26th, 2005, Roorkee, India.

S. Bhattacharyya, Bolin Chetia, P. K. Iyer, P. K. Giri, "Chemical synthesis and characterization of ZnO nanoparticles", Proc. National Conference on Advanced Characterization Techniques on Nanomaterials, August 24-26th, 2005, Roorkee, India.

P. K. Giri, R Kesavamoorthy, B. K. Panigrahi, K. G. M. Nair, and A. Srinivasan, "Surface vibrational modes and luminescence decay dynamics of Ge nanocrystals embedded in SiO2", Proc. International Symposium on Advanced Materials and Processing, December 2004, Ed. A. K Banthia (Narosa Publising).

P. K. Giri, R. Kesavamoorthy, B. K. Panigrahi, K.G.M. Nair, S. Sarma and A. Srinivasan, "Ion beam synthesis and characterization of Ge nanocrystals embedded in SiO2", Proc. Indo-US workshop on nano-scale materials: From Science to Technology, Puri, 2004. Ed. S. N. Sahu.

K. Suresh, P. K. Giri, B. K. Panigrahi, K.G.M. Nair, "Automated electrical characterization of semiconductor devices using virtual instrumentation and graphical programming", Trends in Process Instrumentation and Control, Proc. International conference on Instrumentation, December 2004, Ed. Sudhir Agashe, Priti Rege and Neelima Iyer, p. 527 (2004).

P. K. Giri, "Photoluminescence studies of self-interstitial clustering in silicon", Proc. Physics of Semiconductor Devices, Ed. H.L. Bhat and A. Dasgupta, (Narosa, New Delhi), p.179 (2003).

P. K. Giri, B. K. Panigrahi and K. G. M. Nair, "Technological process induced defects in epitaxial silicon: photoluminescence and structural studies", Proc. Physics of Semiconductor Devices, Ed. Vikram Kumar and P. K. Basu, December 11-15th (Narosa, New Delhi), p. 91 (2001). [also at SPIE Proc. 4746, 177(2002)]

P. K. Giri and Y. N. Mohapatra, "Role of quasi-Fermi level in trap emission characteristics of heavily damaged silicon induced by MeV ion implantation", Proc. 10th International workshop on the Physics of Semiconductor Devices,  December 14-18th , Ed. V. Kumar and S. K. Agarwal (Narosa, New Delhi) p.375 (1999). [also at SPIE Proc. 3975, I(2000)]

P. K. Giri, E. Rimini, V. Raineri, and G. Franzo, "Ion implantation induced swelling and amorphization in silicon: Role of vacancies", Proc. 10th International workshop on the Physics of Semiconductor Devices,  December 14-18th Ed. V. Kumar and S. K. Agarwal, (Narosa, New Delhi) p. 371(1999). [also at SPIE Proc. 3975, I(2000)]

P. K. Giri and V. Raineri, "Mechanism of swelling during ion-beam-induced amorphization of silicon" Proc. DAE Solid State Physics Symposium, Kalpakkam, India, 44, 234 (1999).

P. K. Giri, S. Dhar, V. N. Kulkarni and Y. N. Mohapatra, "Electrically active defects due to end-of-ion range damage in silicon irradiated with MeV Ar+ ion",Proc.International Workshop on the Semiconductor Materials and Devices, Ed. O. P. Agnihotri and V. K. Jain, (Narosa, New Delhi), p. 139 (1998).

P. K. Giri and Y. N. Mohapatra, "Time analyzed transient spectroscopy analysis of photo-induced current transients in semi-insulating gallium arsenide", Proc. Semiconductor Materials and Devices, Eds. O.P. Agnihotri and V. K. Jain, (Narosa, New Delhi), p. 155 (1998).

P. K. Giri, "Capacitance based studies of defects in deep buried layers produced by MeV heavy ions in silicon", Proc. DAE Solid State Physics Symposium, Cochin, India, December 27-31st, 1997, 40C,  p. 14 (1997).

Y. N. Mohapatra, S. Agarwal, and P. K. Giri, "Challenges and opportunities in studying deep defect dominated semiconductors : Emerging issues and case studies", Proc. 9th International Workshop on Physics of Semiconductor Devices, (IWPSD1997),  New Delhi, India, December 16-20, 1997, Ed. V. Kumar and S. K. Agarwal (Narosa, New Delhi) p.1109 (1997). [also at SPIE Proc. 3316, 11109 (1998)]

P. K. Giri, S. Dhar, V. N. Kulkarni and Y. N. Mohapatra, "Defect level responsible for compensation in deep buried layers in n-type silicon", Proc. 9th International Workshop on Physics of Semiconductor Devices (IWPSD1997), New Delhi, India, December 16-20, 1997, Ed. V. Kumar and S. K. Agarwal (Narosa, New Delhi), p. 632 (1997). [also at SPIE Proc. 3316, 632 (1998)]

S. Dhar, P. K. Giri, T. Som, Y. N. Mohapatra and V. N. Kulkarni, "Ion induced synthesis of low resistive germanide phases", Proc. DAE Solid State Physics Symposium, Mumbai, India, December 27-31st, 1996. 39C, p. 374 (1996).

P. K. Giri, S. Dhar, V. N. Kulkarni and Y. N. Mohapatra, "Trapping characteristics of MeV ion implanted buried layers in silicon", Proc. DAE Solid State Physics Symposium, Mumbai, India, December 27-31st, 1996. 39C p. 370 (1996).

S. Agarwal, P. K. Giri and Y. N. Mohapatra, "Evidence for field dependence of emission from DX centre", Proc. 8th International Workshop on Physics of Semiconductor Devices (IWPSD1993), New Delhi, India, December 1993, Ed. K. Lal (Narosa , New Delhi).