International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Colour Temperature measurement of Light Sources using a Silicon Solar Cell

Author Affiliations

  • 1Department of Physics, Saveetha Engineering College, Chennai, India

Res. J. Recent Sci., Volume 5, Issue (ISC-2015), Pages 25-29, -----Select----,2 (2016)


A subject's colour is usually not consistent under different types of lighting. A white subject can appear reddish at sunrise or sunset, and blue-greenish on cloudy days. Colour changes results from different colour temperatures. This paper shows the experimental method of calibration of silicon solar cell and measurement of colour temperature of light sources. A silicon solar cell is calibrated for its spectral efficiency and subsequently it is used for measurement of colour temperatures of incandescent light sources of unknown colour temperature. A light source of known colour temperature and a series of interference filters are made use of for the calibration. Solar cell efficiency was normalised to particular wavelength. The root mean square deviation for all the wave lengths were calculated and plotted against the colour temperature. From the curve between colour temperatures and r.m.s deviation, colour temperature was obtained and it agrees very well with temperature of lamp for the known voltage.


  1. ISO 3664 (2009)., No turning back, Various light sources; GTI Graphic Technology, Inc., 211 Dupont AveNewburgh, NY 12550, April.10, (2012)
  2. Ed. Allen Chappell (1978)., Opto electronics:, Theory andPractice, McGraw Hill Publication 234, ISBN:3-519-13083-1
  3. Walsh J.W.T. (1958)., Photometry, 3rd edition, DoverPublication, New York, 293.ISBN: 486 61284-8
  4. Wityherell P.G. and Faulhaber M.E. (1970)., The SiliconSolar Cell as a Photometric detector, Appl. Optics., 9, 73.
  5. Tasshi Dennis (2014)., Novel NIST Laser System MimicsSunlight to Test Solar Cell Efficiency, NIST News, US,May 30.
  6. Dhonde Mahesh and Jaiswal Rajesh (2012)., TiO2Microstructure, Fabrication of thin Film Solar Cells andIntroduction to Dye Sensitized Solar Cells, Res. J. RecentSci., 2, 25-29.