srivassk@nplindia.org

Dr. Sanjay Kumar Srivastava
Designation:
Principal Scientist & Associate Professor (AcSIR)
Department:
Advanced Materials and Device Metrology Division
Email address:
srivassk@nplindia.org
Brief Biodata:

DP/DU No. and  Name: (#4.01), Photovoltaic Metrology Section/ Advanced Materials and Device Metrology

Current position and Address: 

Scientist, Room No. 54,Main Building,
 CSIR-National Physical Laboratory,
 Dr. K.S. Krishnan Road,
 New Delhi-110012

Educational Qualifications: 

Degree

Subject

University/Institute

Year

 

Ph.D. 

 

Physics

Indian Institute of Technology Delhi, New Delhi, India

2007

M. Tech.

Materials Science & Engineering

Indian Institute of Technology Bombay, Mumbai, India

2001

M.Sc. 

Physics 

Banaras Hindu University (BHU) Varanasi, India

1999

 

Academics/Research Experience:    

Year

Duration

Research field

Institute ( in India/ Abroad)

Position/Fellowship

1999-2000

 

1yr

 

Materials Science

IIT Bombay

 

MHRD-GATE Fellowship

2000- 2001 

 

 

½ yr

 

Materials Science (solid state electrolytes)

IIT Bombay

 

 

CSIR-JRF 

 

 

2001-2007

 

5 ½  yrs

 

Carbon nanostructures for field emission applications

IIT Delhi

 

 

MHRD-IIT Delhi Fellowship

 

2005- 2007

1 ½ yrs

Physics

 Agra College Agra (Agra Univ. Agra)

Lecturer

2007-2010

3 yrs

Silicon/silicon nanostructures photovoltaic

CSIR-NPL, New

Delhi

Junior Scientist

2011-

2012

1 yr

Silicon nanowires based thin optical materials for photovoltaic applications

Max Planck Institute for the Science of Light, Erlangen, Germany

Visiting Fellow,  BOYSCAST Fellowship, DST, Govt of India

2010 – 2013

3 yrs

Silicon/silicon nanostructures based photovoltaic devices

CSIR-NPL, New

Delhi

Scientist

 

2013-2017

4 yrs

Silicon photovoltaic devices, PV metrology

CSIR-NPL, New

Delhi

Sr. Scientist

 

2017-till date

 

Silicon photovoltaic devices, PV metrology

CSIR-NPL, New

Delhi

Principal Scientist

 

Date of Joining NPL: 4th January 2007


No. of Publications:

SCI Journals

Conference/ proceedings

Books

Total

50

25

Book Chapter: 09

84

 

 No. of Patents  :02 (Granted, US and EU); 01 (filed, India)

Current Activity                                                        

  • Photovoltaic Metrology: Primary reference solar cell, PV modules 
  • Efficient silicon solar cells: Homo-junction; organic semiconductor/Si hybrid and inorganic semiconductor/Si hetero-junctions based. 
  • Thin/Felxible silicon solar cells
  • Silicon nanostructures based novel solar cell concepts for next generation photovoltaic applications
  • Novel light trapping schemes: silicon nanostructures such as arrays of nanowires, nanotips, nano scale-textured silicon, nano and micro pyramids, inverted pyramids, their light trapping properties for  cost effective PV devices

 

Honors and Award

Awards:

  •    CSIR Young Scientist Award-2013 in the area of Physical Sciences.
  •    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)

Fellowships:

  •  BOYSCAST fellowship 2010-11 (Aug 2011-Aug 2012) Department of Science and Technology (DST), Government of India.

Any other information:

Selected Publications:

•    Highly efficient PEDOT:PSS/Silicon hybrid solar cells via effective surface micro-engineering of low-cost solar-grade silicon wafers, ACS Applied Energy Materials, 4 (2021) 4181–4198.
•    Enhanced photovoltaic performance of PEDOT:PSS/Si solar cells using hierarchical light trapping scheme, Solar Energy, 170 (2018) 221-233.  (Citations: >20)
•    Antireflective ultra-fast nanoscale texturing for efficient multi-crystalline silicon solar cells, Solar Energy 115 (2015) 656-667.  (Citations: >35)
•    Large area fabrication of vertical silicon nanowire arrays by silver assisted single-step chemical etching and formation kinetics, Nanotechnology, 25, (2014) 175601 (17 pages). (Citations: >100)
•    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: >125)
•    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: >80)
•    Fabrication of silicon nanowire arrays based solar cell with improved performance, Sol. Energy Mater Sol. Cells, 95, (2011), 215-218. (Citations: >200)-Listed in TOP 25 Cited articles of SOLMAT (1st Jan 2016 to Dec 2016).
•    Excellent Antireflection Properties of Vertical Silicon Nanowires Arrays, Sol. Energy Mater Sol. Cells, 94, (2010) 1506-1511.  (Citations: >275). Listed in TOP 25 Cited articles of SOLMAT (1st Jan 2015 to 31st Dec 2015).

Scientific reviewer of Journals:

Advanced Materials, Nature-Scientific Reports, Nanoscale, ACS Appl. Energy Mater, ACS-Appl. Mater & Interfaces, ACS Appl. Nano Mater, Progress in Photovoltaics: Res & applications, IEEE-J. Photovoltaics; Solar Energy Materials and Solar Cells, Solar Energy, Applied Surface Science, Journal of Physical Chemistry, Applied Physics Letters, Journal of Applied Physics, Journal of electrochemical Society, Carbon, Nanoscale Research Letters, Carbon, RSC Adavnces, Journal of Alloys and Compound, J. Mater Sci.; etc..

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

                         Life Member  :Carbon Society of India

                         Life Member :Metrology Society of India


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