DP/DU No. and Name: (#1.01), Silicon Solar Cells Group/Physics of Energy Harvesting Division

Current position and Address:

Scientist, Room No. 51 A
Main Building,
CSIR-National Physical Laboratory,
Dr. K.S. Krishnan Road,
New Delhi-110012

Educational Qualifications:

Academics/Research Experience:

Date of Joining NPL: 4^th January 2007

No. of Publications:

No. of Patents: Nil

Current Activity:

• Development of high efficiency silicon solar cells,
• Fabrication of silicon nanostructures such as arrays of nanowires, nanotips, Nano scale-textured silicon, their light trapping properties.
• Silicon nanostructures based novel solar cell concepts for next generation photovoltaic applications.

Honors and Award :

Awards:

• CSIR Young Scientist Award-2013 in the area of Physical Sciences .
• Best Poster Paper Award , First TAPSUN Conference- 2012 , Dec 4-5, 2012, National Physical Laboratory, India.
• Young Investigator Award for “Wet chemically etched silicon nanowires based p-n junction solar cell” in the International conference “Next generation solar energy': from fundamentals to applications” held in Erlangen, Germany, 12-14 Dec 2011 . ( http://bayern-innovativ.de/nextgeneration-pv2011/gallery )
• Best Poster Paper Award , Materials Research Society of India (MRSI)- 2005 , Pune , India.

Fellowships:

• BOYSCAST fellowship 2010-11 (Aug 2011-Aug 2012) Department of Science and Technology (DST), Government of India.
• MHRD-fellowship from Indian Institute of Technology Bombay : July. 1999-June 2000.
• Graduate Aptitude Test in Engineering ( GATE ) 1999, Percentile: 96.7, All India Rank: 49.
• Qualified: All India Council of Scientific & Industrial Research-Junior Research Fellowship ( CSIR–JRF) 1999: CSIR-NET , June 1999.
• Qualified: Joint Entrance Screening Test ( JEST)-1999,
• MHRD-fellowship from Indian Institute of Technology Delhi , 2001- 2005.

Any other information:

Selected Publications (last 5 years)

• Large area fabrication of vertical silicon nanowire arrays by silver assisted single-step chemical etching and formation kinetics , Nanotechnology , 25, (2014) 175601 (17 pages), May, 2014. ( Citations: >25 )
• Probing photo-carrier collection efficiencies of individual silicon nanowires diodes on a wafer substrate, Nanoscale , 6, (2014) 7897-7902 . Listed in HOT articles of Nanoscale 2014.
• Silver catalyzed nano-texturing of silicon surfaces for solar cell applications, Sol. Energy Mater. & Sol. Cells, 100 , (2012) 33-38. ( Citations: >70 )
• Nanowire arrays in multi-crystalline silicon thin films on glass: a promising material for research and applications in nano-technology , Nano Lett. 12 (8), (2012) 4050-4054. ( Citations: >40 )
• Fabrication of silicon nanowire arrays based solar cell with improved performance, Sol. Energy Mater Sol. Cells, 95 , (2011), 215-218 . ( Citations: >120 )- Listed in TOP 25 Cited articles of SOLMAT (1 ^st Jan 2016 till date).
• Excellent Antireflection Properties of Vertical Silicon Nanowires Arrays , Sol. Energy Mater Sol. Cells, 94 , (2010) 1506-1511.( Citations: >160 ). Listed in TOP 25 Cited articles of SOLMAT (1 ^st Jan 2015 to 31 ^st Dec 2015 ).

Scientific reviewer of Journals :
Progress in Photovoltaics: Res & applications, Applied Physics Letters, Journal of Applied Physics, Journal of electrochemical Society, Electrochemical and Solid State Letters, Carbon, Solar Energy Materials and Solar Cells, Applied Surface Science, Journal of Physical Chemistry, Nanoscale Research Letters, Journal of Alloys and Compound etc.

Membership: Life Member of Electron Microscopy Society of India (EMSI)
Life Member of Carbon Society of India

Blood Group: B ⁺

Employ ID: 4708