Bulgarian Institute of Solid State Physics
Bulgarian Academy of Sciences














Union of the Physicists in Bulgaria

Created 23.12.2015
Updated 7.10.2021

Nadejda Savova Koparanova
(10.08.1930 – 2013)
Born in Sofia


Nadejda Koparanova graduated physics from the Sofia University (1952)

She was PhD student in the Sofia Technical University (26.11.1953–25.11.1956) and defended her dissertation (1960)

She spoke English, German and Russian well

She specialised in East Germany (1965, 1966), Russia (1968) and Hungary (1975)


Nadejda Koparanova investigated and improved structures of organic layers in xerographic and photodielectric electrophotografic processes

She investigated electrical properties of xeterogeneous materials and prepared apparatuses for electrophotographic measurements

Professional experience

Nadejda Koparanova was teacher on physics at the Second Pholytechnical School in Varna for one year (01.09.1952–25.11.1953)

She became a part time assistant in the Technical University of Sofia (15.09.1959–25.10.1960), and senior assistant in the new campus in Darvenitsa (26.10.1960–31.10.1963)

Bulgarian Academy of Sciences appointed her in the Physical Institute (01.11.1963–23.06.1975), where she was second rank research assistant

She became a first rank assistant in the Laboratory of photoelectrical and optical phenomena in wide band semiconductors at the Institute of Solid State Physics, BAS (23.06.1975–31.12.1987)

Koparanova was an organiser of the V²² International Meeting on photoelectrical and optical phenomena in solids

  1. S. Kanev, N. Koparanova, Einflus der elektrischen Spannung auf die Prozesse im Elektrodenbereich und die Kinetik des Photo-stroms in CdS-Einkristallen. – Comptes Rendus Acad. Bulg. Sci. 17(5) 431-434 (1964)

  2. G. Mechenov,, S. Simov, N. Koparanova, D. Genchev, V. Gancheva, Observation of Cadmium Oxide Whiskers Grown on Cadmium Sulfide Single Crystals. – Comptes Rendus Acad. Bulg Sci. (35) 311 (1982)

  3. S. Simov, N. Koparanova, G. Metchenov, D. Genchev. Growth and Morphology of Cadmium Oxide Wiskers. – Journal of Material Science (18) 623 (1983)

  4. S. Kanev, N. Koparanova, E. Vateva, A Method for Determining the Type of Contacts Applied to Single Crystals of CdS, CdSe, etc. – Physics Stat. Sol., 9(2) K87-K90 (1965)

  5. N. Koparanova, K. Tsvetkova, S. Kanev, On the Photochemical Reactions in CdS.Cd.Cu Single Crystals. – Bulg. Journal of Physics, 1(1) 13-20 (1974)

  6. E. Vateva, N. Baltchev, I. GTeorgieva and N. Koparanova, Threshold and Memory Switching in Thin Amorphous Films of Evaporated SiO with Two Al Electrodes. – Amorphous Semiconductors Conference Proceedings, Budapest, Akademia iado (1977) 19-23

  7. N. Koparanova, P. Drangazhova, Thermal and Optical Restoration of Photoelectric Sensitivity of CdS Single Crystals after Optical Degradation. – Compt. Rendus Acad. Bulg. 30(7) 989-992 (1977)

  8. N. Koparanova, I. Mladenov, Study of Infra Red Radiation's Restorative Action on Photoelectric Sensitivity of CdS Single Crystals. – Comptes Rendus Acad. Bulg. 31(8) 963-966 (1978)

  9. P ALIGN="LEFT">N. Koparanova, I. Mladenov, V. Brunsova, On the Optical Degradation Causes of Photoconductivity of CdS.Cd.Cu Monocrystals, Scient Rep. of VIMMESS, 21(11) 85-91 (1979)
  10. G. Mechenov, S. Simov, N. Koparanova, D. Genchev, V. Gancheva, Observations of CdO whiskers grown on CdS single crystals. – Comptes Rendus, Acad. Bulg. 35(3) 311-314 (1982)

  11. S. Simov, N. Koparanova, G. Metchenov, D. Genchev, Growth and morphology of cadmium oxide whiskers. – Journal of Material Science (2) 623-633 (1983)


  1. Obituaγy from the Institute of Solid State Physics