Silicon Solar Cell R&D (CV_Ashok)

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Over five years research and development experience in silicon wafer based solar photovoltaics. Specialized in characterization of silicon wafer and solar cells. Developed and establish methods for the measurement of diffusion length in higher lifetime wafers, front and back surface recombination in silicon solar cell.

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Silicon Solar Cell R&D (CV_Ashok)

  1. 1. CURRICULUM VITAEASHOK KUMAR SHARMAAffiliation:Crystalline Silicon Solar Cell GroupNational Physical LaboratoryDr. K. S. Krishnan RoadNew Delhi 110012 (India)Tel: +91-9871087040, +91-11-45608379, +91-11-28745860Email: anamics.ak@gmail.com, sharmaak@nplindia.org PERSONAL DETAILSDate of Birth: 23 March 1982Citizenship: IndiaMarital Status: Married (1 startup)Language: Hindi, EnglishAbode: SRSA-12, NPL Colony, New Rajinder Nagar, Delhi-110060 ACADEMICSPh.D. Physics (Silicon Solar Cells), (Expected submission; May 2011)Jamia Millia Islamia, New Delhi & National Physical Laboratory, New DelhiThesis Title: Studies on the enhancement of optical absorption and reduction in minority carrier recombination in the silicon solar cellsM.Sc. Physics (Materials Science), July 2004Jamia Millia Islamia, New Delhi (www.jmi.ac.in)Thesis Title: Conductivity measurement in conjugated polymer (poly-pyrrole)B.Sc. (Physics, Chemistry, Maths), July 2002C.C.S. University, Meerut, U.P (www.ccsuniversity.org) PROFESSIONAL EXPERIENCEResearch & DevelopmentNational Physical Laboratory, New Delhi (www.nplindia.org)Research Intern (April 2005 - April 2007)Research Fellow (April 2007 - April 2008)Senior Research Fellow (April 2008 - present)1|Page
  2. 2. Academic TrainingTERI University, New Delhi (www.teriuniversity.org)Adjunct faculty – Since October 2010Solar Photovoltaics (M.Tech. - REEM)M. B. (P.G) College, Dadri, G.B. NagarFaculty Member, Physics Department (August 2004 – April 2005)Physics UG Classes AWARDSCSIR Diamond Jubilee Research Intern Award in Physics (2005)CSIR Senior Research Fellowship in Applied Physics (2008) RESEARCH CONTRIBUTIONSMethod for measurement of FSRV in conventional Silicon solar cellMethod for diffusion length measurement in virgin silicon waferApplication of PCG method for measurement of diffusion length and BSRVPorous silicon as ARC: growth kinetics and optical confinement studies CONFERENCES & COURSES“Advances in Photovoltaics”, IWPSD-2005, National Physical Laboratory, New Delhi,India, December 12, 2005.International Workshop on the Physics of Semiconductor Devices (IWPSD)National Physical Laboratory New Delhi, India, December 13 -17, 2005International Materials Research Congress Symposium (IMRC), Cancun- Mexico,August 20-24, 2006Materials Research Society of India Symposium (MRSI), National PhysicalLaboratory New Delhi- India, February 12 -14, 2007International Conference on luminescence and its application (ICLA), NationalPhysical Laboratory New Delhi, India, Febuary13 -16, 2008Indo-Australian Solar Energy Workshop, Amity Institute of Renewable andAlternative Energy, Amity University, Noida, February 9-10, 2010International Materials Research Congress Symposium (IMRC), Cancun- Mexico,August 15-19, 2010.2|Page
  3. 3. REFERRED PUBLICATIONSSCI Journals1. “Determination of front surface recombination velocity of silicon solar cells using the short wavelength spectral response” by A.K. Sharma, S.K. Agarwal and S. N. Singh. Solar Energy Materials & Solar Cells Volume 91, Issue 15 +16, 22 September 2007, Pages 1515-1520. (Cited 3 times in Scopus)2. “The growth kinetics and optical confinement studies of porous-Si for application in terrestrial Si solar cells as antireflection coating” by B.C.Chakravarty, Jyoti Tripathi, A.K.Sharma, R.Kumar, S.B.Samanta and S.N.Singh. Solar Energy Materials & Solar Cells, Volume 91, Issue 8, 4 May 2007, Pages 701-706. (Cited 7 times in Scopus)3. “Effect of specimen exposure to air on determination of diffusion length in p-silicon wafer using the photocurrent generation method” A.K. Sharma, S. N. Singh, Nandan S. Bisht, H.C. Kandpal and Z. H. Khan. Solar Energy, Volume 85, Issue 5, 31 March 2011, Pages 1137-1143.4. “Determination of minority carrier diffusion length from distance dependence of lateral photocurrent for side-on illumination” A.K. Sharma, S. N. Singh, Nandan S. Bisht, H.C. Kandpal and Z. H. Khan. Solar Energy Materials & Solar Cells, (Accepted doi:10.1016/j.solmat.2011.04.027).International & National Conferences/Symposium1. “Estimation of front surface recombination velocity of minority carriers for n +- p-p+ silicon solar cells from short wavelength spectral response” by A.K. Sharma, S.K. Agarwal and S. N. Singh. International Workshop on the Physics of Semiconductor Devices (IWPSD) NPL New Delhi, India, Dec.13 -17, 2005.2. “Measurement of front surface recombination velocity of silicon solar cells using the short wavelength spectral response” by A.K. Sharma, S.K. Agarwal and S. N. Singh. International Materials Research Congress Symposium (IMRC) Cancun, Mexico, August 20-24, 2006.3. “Effect of surface passivation on the front surface recombination velocity of n +-p- p+ silicon solar cells” by A.K. Sharma, S.K. Agarwal and S. N. Singh. Materials Research Society of India Symposium (MRSI) NPL, Delhi, India, Feb 12 -14, 2007.4. “Determination of minority carrier diffusion length from distance dependence of lateral photocurrent for side-on illumination” A.K. Sharma, S. N. Singh, Nandan S. Bisht, H.C. Kandpal and Z. H. Khan. International Materials Research Congress Symposium (IMRC) Cancun, Mexico, August 15-19, 2006.3|Page
  4. 4. ADDITIONAL SKILLSSolar photovoltaicsWafer quality analysis through diffusion length measurementConventional silicon solar cell fabrication and performance analysisARC and surface passivation quality analysisComputerLanguages: QBasic, FORTRAN, CSoftware‟s: Origin 8.0, Mathematica, PC1D, FILMSTARManagementAdmirable organizational, interpersonal skills,Excellent analytical and presentation skillsMember Organizing Committee, IWPSD-2005 NPL, New Delhi, India, Dec.13 -17, 2005 PRESENT RESEARCH INTRESTDevelopment of characterization methods for crystalline Si solar cellsLight management in conventional crystalline Si solar cellNew photovoltaic materials for energy generation REFRENCESDr. S. N. Singh (Emeritus Scientist)Physics of Energy Harvesting Division, National Physical Laboratory, New Delhi-110012Tel.: +91-11-4560-8379 (O), Fax: +91-11-4560-9310, Email- snsingh@nplindia.orgDr. Z. H. Khan (Prof. and Honorary Director)Department of Physics & FTK- Center for Information TechnologyJamia Millia Islamia (A Central University), Jamia Nagar, New Delhi- 110025Tel.: +91-11-2698-7707(O), Fax: +91-11-2698-7707, Email- zhkhan@jmi.ac.inDr. A. K. Tripathi (Director and Scientist „F‟)Ministry of New and Renewable Energy (Govt. of India),Block No. 14, CGO Complex, Lodhi Road New Delhi-110003Tel. and Fax: +91-11-2436-3035, 91-11-2436-0707, Email- aktripathi@nic.inDate: April 23, 2011Place: New Delhi (Ashok Kumar Sharma)4|Page

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