Birla Institute of Technology, Mesra
Dr. Dilip Kumar Singh
Assistant Professor, Physics
Ph. D. (IIT Guwahati)
Contact Address
Permanent Address Vill: Nabiganj, Siwan Bihar
Local Address Department of Physics, Birla Institute of Technology Mesra, Ranchi-835215
Phone (Office) 08130610762
Phone Residence 08130610762
Email Id
Joined Institute on : 12-Jun-2017

  Work Experience
Teaching : 06 Years

Research : 15 Years

  Research Areas
  • Nanotechnology
  • Nano-optics
  • Experimental Condensed Matter Physics
  Award and Honours
  • Inspire Faculty Award (Physical Science), Department of Science and Technology (DST), Govt. of India (2013).
  • Brain-Korea 21 Post-Doctoral Fellowship, Nano-Optics Group, Department of Physics and Astronomy, Seoul National University, Korea. June, 2011-Feb, 2013.
  • Senior Research Fellowship, Council for Scientific and Industrial Research (CSIR), Govt. of India. October 2008 - September 2010,
  • Senior Research Fellowship, MHRD Govt. of India.  July 2007- September 2008.
  • Junior Research Fellowship, MHRD Govt. of India. July 2005- June 2007.

Publication list (year-wise)

[39]      Ashish Gaurav, Deepali Sinha, Rakesh K. Prasad, Dilip K. Singh,

Single step synthesis of size-controlled carbon quantum dots using electrochemical etching of graphite.

J. of Nanoscience & Nanotech (2021, Under revision)  

arXiv:2011.03217v1 []


[38]      Ravi Kumar, Dilip K. Singh, Prashant Kumar, Cong T. Trinh, K.-G. Lee, Raj Kumar, and S. R. Dhakate.

High concentration of nitrogen vacancy centers in nanodiamonds by optimization of high temperature annealing.

Diamond and Related Materials (2021, Under revision)


[37]      Rakesh K Prasad and Dilip K Singh

Low cost electrical probe station using etched tungsten nanoprobes: role of cathode geometry   arXiv:2006.09971 [physics.ins-det]

Nano Express (IOP) 1, 2 (2020)


[36]      Ravi Kumar, Prabir Pal, S. R. Dhakate, Raj Kumar, Devesh K. Avasthi, Dilip K. Singh*

Creation of uniformly dispersed nitrogen-vacancy centers in Nano-diamonds by low energy ion-irradiation

Material Research Express 6, 115097 (2019)

*Corresponding author


[35]      Ravi Kumar, Dilip K. Singh, Prashant Kumar, Raj Kumar, S. R. Dhakate

Influence of degree of air oxidation and functionality on ensemble emission from nitrogen vacancy centers in nano-diamonds.

Diamond and Related Materials 97, 107431 (2019)


[34]      Ravi Kumar, Priyanka Pandit, Prabir Pal, S. R. Dhakate, R. P. Pant, Raj Kumar, Devesh K. Avasthi, Dilip K. Singh*

Bright Fluorescent Nano-diamonds through Optimized Engineering of Nitrogen-vacancy (NV) Centers.

AIP Advances 8, 085023 (2018)


[33]      A. Barvat, N. Prakash, G. Kumar, Dilip K. Singh, A. Dogra, S. Khanna, P. Pal

Electronic structure of the PLD grown mixed phase MoS2/GaN interface and its thermal annealing effect.

Current Applied Physics 18, 170–177 (2018)


[32]      A. Barvat, N. Prakash, S. Singha, G. Kumar, Dilip K. Singh, A. Dogra, S. Khanna, A. Singha, and P. Pal.

Emerging photoluminescence from bilayer 2H-MoS2 films grown by pulsed laser deposition on different substrates.

Journal of Applied Physics 122, 015304 (2017)


[31]      Ashish Gupta, Sanjay R. Dhakate, Prabir Pal, Anamika Dey, Parameswar K. Iyer, Dilip K.              Singh

Spectroscopic Study of Effect of Graphitization Temperature on Crystallinity and Electrical Conductivity of Poly-acrylonitrile based Carbon Nano-fibers.

Diamond and Related Materials (2017).

*Corresponding author


[30]      Munu Borah, Abhishek K Pathak, Dilip K Singh, Prabir Pal and Sanjay R Dhakate

Role of limited hydrogen and flow interval on the growth of single crystal to continuous graphene by low-pressure chemical vapor deposition.

Nanotechnology 28(7), 075602 (2017). 


 [29]     Ravi Kumar, S. J. Yoon, K. G. Lee, Prabir Pal, R. P. Pant, C. K. Suman, S. R. Dhakate, Raj Kumar, Devesh K. Avasthi, Dilip K. Singh*

Purification Method Dependent Fluorescence from Nitrogen-vacancy (NV) Centers of Nano-diamonds.

RSC Advances 6 (52), 47164-47173 (2016).

*Corresponding author


[28]      Nisha Prakash, Kritika Anand, Arun Barvat, Prabir Pal, Dilip K. Singh, Mukesh Jewariya, Srinivasa Ragam, Sonachand Adhikari, Kamlesh K. Maurya, Suraj P. Khanna

The impact of RF-plasma power in carrier relaxation dynamics of unintentional doped GaN epitaxial layers grown by MBE.

Optical Materials 54, 26-31 (2016).


[27]      Dilip K. Singh, Jae Sung Ahn, Sukmo Koo, Taehee Kang, Joonyeon Kim, Sukho Lee, Namkyoo Park and Dai-Sik Kim

Selective Electric and Magnetic Sensitivity of Aperture Probes.

                     Opt. Express 23, 20820 (2015).


[26]      Jae Sung Ahn, Taehee Kang, Dilip K. Singh, Young-Mi Bahk, Hyunhwa Lee, Soo Bong                   Choi and Dai-Sik Kim

Optical field enhancement of nanometer-sized gaps at near-infrared frequencies.

         Optics Express 23, 4897 (2015).


[25]      Munu Boraha, Dilip K. Singh, Kiran M. Subhedar and Sanjay R. Dhakatea,

Role of Substrate Purity and its Crystallographic Orientation on the Defect Density of Chemical Vapor Deposition Grown Monolayer Graphene.

         RSC Advances 5, 69110 (2015). 


[24]      S. S. Kushvaha, M. Senthil Kumar, A. K. Shukla, B. S. Yadav, Dilip K. Singh, M. Jewariya, S. R. Ragam and K. K. Maurya 

Structural, optical and electronic properties of homoepitaxial GaN nanowalls grown on GaN template by laser molecular beam epitaxy.

RSC Adv. 5, 87818 (2015).


[23]      Manish Verma, Dilip K. Singh*, P. Senthilkumaran, Joby Joseph, H. C. Kandpal, Ultrasensitive and fast detection of denaturation of milk by Coherent backscattering of light.           

Scientific Reports, 4, 7257 (2014).  

*Corresponding author


[22]      Dilip K. Singh, Q. H. Kihm, H. W. Kihm, and Dai-Sik Kim, “Optical Magnetic Field Analyzer” Quantum Electronics and Laser Science Conference, San Jose, California United States, May 6-11, 2012, ISBN: 978-1-55752-943-5

Chiral and Complex Plasmonics (QTh4F)


[21]      S. Vilain, H. W. Khim, Dilip K. Singh and D. S. Kim, “Mapping |Ex|2, |Ez|2 and |Hy|2 for one-dimensional surface plasmon polaritons” Quantum Electronics and Laser Science Conference, San Jose, California United States, May 6-11, 2012, ISBN: 978-1-55752-943-5, Plasmonic Imaging (QTh3F)


[20]      Dilip K. Singh, Parameswar K. Iyer, P. K. Giri,

Distinguishing defect induced intermediate frequency modes from combination modes in the Raman spectrum of single walled carbon nanotubes.

J. Appl. Phys. 111, 064304 (2012).


[19]      Dilip K. Singh, Parameswar K. Iyer, and P. K. Giri,

Role of molecular interactions and structural defects in the efficient fluorescence                quenching by carbon nanotubes.

Carbon 50, 4495 (2012).


[18]      P. K. Giri, S. Bhattacharya, B. Chetia, Satchi Kumari, Dilip K. Singh, P. K. Iyer,

High yield chemical synthesis of hexagonal ZnO nanoparticles and nanorods with excellent optical properties

J. Nanosci. Nanotechnol. 12, 201 (2012).


[17]      Prasanta J. Goutam, Dilip K. Singh, and Parameswar K. Iyer,

Photoluminescence quenching of poly(3-hexylthiophene) by carbon nanotubes.

J. Phy. Chem. C 115 (49), 24067 (2012).


[16]      Prasanta J. Goutam, Dilip K. Singh, P. K. Giri, Parameswar K. Iyer,

Enhancing the Photo Stability of Poly-(3-Hexylthiophene) by Preparing composites with Multiwalled Carbon Nanotubes.

J. Phy. Chem. B 115, 919 (2011).


[15]      Dilip K. Singh, P. K. Giri and Parameswar K. Iyer

Evidence for Defect-Enhanced Photoluminescence Quenching of Fluorescein by Carbon Nanotubes.

J. Phy. Chem. C 116 (14), 8196-8201 (2011).


[14]      Dilip K. Singh, Parameswar .K. Iyer, and P. K. Giri,

Defect evolution and structural improvement in low energy ion irradiated carbon nanotubes: Microscopic and spectroscopic studies.

Int. J. Nanosci. 10, 49 (2011). 


[13]      Dilip K. Singh, Parameswar K. Iyer and P. K. Giri,

Improved chemical synthesis of graphene using a safer solvothermal route.

Int. J. Nanosci. 10, 39 (2011).  


[12]      Dilip K.Singh, Parameswar .K. Iyer, and P. K. Giri,

Diameter dependent oxidative stability of multiwalled carbon nanotubes: Role of defects and effect of vacuum annealing.

J.  Appl. Phys. 108, 084313 (2010).   

                     (Also appeared in Virtual Jr. of Nanoscale Science & Technology, November 1, 2010)


[11]      Dilip K. Singh, Parameswar .K. Iyer, and P. K. Giri,

Diameter dependence of interwall separation and strain in multiwalled carbon nanotubes probed by X-ray diffraction and Raman scattering studies

Diamond and Related Materials 19, 1281 (2010).


[10]      Dilip K. Singh, P. K. Iyer, and P. K. Giri,

Optical Signature of Structural Defects in Single Walled and Multiwalled CNTs.

J. Nanosci. Nanotechnol. 9, 5396 (2009).


[9]        Satchi Kumari, Dilip K. Singh, and P. K. Giri,

Strain Anisotropy in Freestanding Germanium Nanoparticles Synthesized by Ball Milling.

J. Nanosci. Nanotechnol. 9, 5231 (2009).


[8]        P. K. Reddy, P. J. Goutam, Diilp K. Singh, A. K. Ghoshal,; P. K. Iyer,

Poly(3-hexylthiphene) to fullerenes. Kinetic modeling and analysis of thermal degradation  pathway.

Polymer degradation and stability 94, 1839 (2009).


[7]        Dilip K. Singh, P. K. Iyer, and P. K. Giri,

Functionalization of Carbon nanotubes and study of its optical and structural properties.

Nano Trends, A Journal of Nanotechnology and Its Applications 4, 55 (2008).


[6]        Dilip K. Singh, Parameswar .K. Iyer, and P.K.Giri,

Quantitative analysis of diameter dependent properties of multi-walled carbon nantoubes.

AIP Conference Proceedings 1147, 450 (2009).


[5]        Dilip K. Singh, P. K. Iyer, and P. K. Giri,

Study of fluorescence quenching effect of Carbon Nanotubes.

Proc. 52nd DAE Solid State Physics Symposium 52, 347 (2007).


[4]        Prabhakar P. Palni, Satchi Kumari, Neeraj Garg Baruah, Dilip K. Singh, P. K. Giri,

Effect of annealing on high quality Zinc Oxide Nanowires synthesized by catalytic vapor-deposition.

Nano Trends 3 (2007) 1–6.


[3]        P. K. Giri, P. K. Patel, C. J. Panchal, S. Bhattacharyya, Satchi Kumari, Dilip K. Singh, V. A. Kheraj, N. M. Shah.

Studies on Zinc Oxide Nanorods Grown Electron Beam Evaporation Technique.

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry 37, 437 (2007).


[2]        P. K. Giri and Dilip K. Singh,

Possible role of defects in the Visible Photoluminescence from Single Walled and   Multiwalled Carbon Nanotubes.

Mater. Res. Soc. Symp. Proc. Vol. 1018, EE07-03 (2007).


[1]        P. K. Giri, S. Bhattacharyya, Dilip K. Singh, R. Kesavamoorthy, B. K. Panigrahi, and K.G. M. Nair,

Correlation between microstructure and optical properties of ZnO nanoparticles synthesized by ball milling.

J. Appl. Phys. 102, 093515 (2007).

  Member of Professional Bodies

1. American Physical Society (APS) – Annual member

2. Indian Carbon Society – Life member

3. Material Research Society of India (MRSI)- Life member

3. Electron Microscope Society of India – Life member

4. Plasma Science Society of India (PSSI)- Life member

5. Ion-beam society of India (IBS) – Life Member

  Current Sponsored Projects

2014 -2019 (5 Years),

DST, Govt. of India. 

Defect Engineered Fluorescence from “Nano-Diamond” for Nano-photonics and Bio-Imaging.  (Amount : Rs. 35 Lakhs)

  1. DST-Inspire Faculty (Physical Science), CSIR-National Physical Laboratory New Delhi 2014-2017.


  1. Brain-Korea 21 Post-Doctoral Fellow, Frontier Physics Division, Seoul National University, Korea. 2011-2013.