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Created 22.07.2014
Updated 9.1.2024
Professor D.Sc.
Kostadinka Alexandrova Gesheva
Birth date – 07.01.1944

Actual professional occupation

Organisation – Bulgarian Academy of Sciences, Central Laboratory of Solar Energy and New Energy Sources, Department: Photothermal Solar Energy Conversion, Research Group: Group of Thin Film Optical Coatings

Postal address – 1784 Sofia, Blvd.”Tsarigradsko shose” 72 Bulgaria Telphone – +359-2-877 84 48, +359-2-979 59 47 Fax – +359-2-875 40 16 e-mail – kagesh@phys.bas.bg

Specialization (IREX grant, Optical Sciences Center, Solar Energy Group of Professor Bernhard Seraphin, Arizona University, August 1979 – December 1980)

– 2211 Solid State Physics
– 2211.01 Alloys
– 2211.13 Interaction of solids with the radiation
– 2211.24 Optical properties
– 2211.25 Semiconductors
– 2211.91 Solid state spectroscopy

Professional category – Professor, Bulgarian Academy of Science, Full time, permanent position

Research experience

  1. Thin Film Technology (Chemical Vapor Deposition
  2. Vacuum Evaporation)
  3. Photoelectrical and Optical Phenomena in Semiconductors
  4. Sold State Optics
  5. Spectrally Selective Coatings
  6. Energy Control Coatings
  7. Molybdenum, Tungsten, Tantalum, Indium, and their oxides, Composite Materials - Black metals, Silicides, Carbonitrides

Academic background
  1. Solid State Physics – Sofia University, 1968

  2. PhD – Solid State Optics "CVD technology of Black Molybdenum coatings-solar absorbers and investigation of their properties" – Bulgarian Academy of Sciences, 1983

  3. DSc – Speciality Electrical, Magnetic and Optical Properties of condense matter physics, Subject “Thin Film Optical Coatings for Effective Solar Energy Utilization” – Bulgarian Academy of Sciences, 11 May 2009

Scientific positions

Professor – Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences

Languages

English – Basic foreign, excellent, fluent speaking and writing Russian – Good French – Good Bulgarian – native

Research Projects

  1. 1984 – Principal investigator, contract between the Central Lab.Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, and the Institute of Glass and Ceramics, Sofia. The project title: Spray pyrolisis of In2O3 : Sn coatings on glass

  2. 1987 – Ellipsometric methods for determination of optical parameters and thickness of thin films and crystals”, a project between the Central Lab. Solar Energy and New Energy Sources with the Institute of Semiconductors and Optical Materials, Novosibirsk, Russian Academy of Sciences.

  3. 1992 – 1994 Coordinator on the Project: “CVD and Sol-gel coatings for cutting tools”; Financial support: ISCAR Co. Izrael Institutions taking part: Central Lab.Solar Energy and New En.Sources, Bulgarian Academy of Sciences

  4. 1993 – 1996 Coordinator (CVD coatings) and P. Stefchev (sol-gel coatings) on the Project: F-456, “Technology for deposition of thin film optical coatings of WO3 and investigation of electrochromic effect “, Financial support: National fond “Research studies” at the Ministry of Science and Education; Institutions: Central Laboratory of Solar Energy and New Energy Sources, BAS

  5. 1998 – 2001 Coordinator on the F 805, “Investigation of electrochromic effect in optical structures based on CVD - MoO3 and WxMo1-xO3 and sol-gel TiO2”; Financial support: National fond “Science Research” at the Ministry of Science and Education; Institutions: Central Laboratory of Solar Energy and New Energy Sources, BAS

  6. 1992 – 1994 Project: “Schotki barriers W/amorphous Si and alloys”; Financial support: Ministry of Science and Education; Central Laboratory of Solar Energy and New Energy Sources, BAS

  7. 1996 – 1998 Personal responsibility CVD W contacts for the solar cells, optimization of the ohmic behaviour of the electrical contacts.Project: “Solar cells based on CdS – CdTe – deposition of W ohmic contacts”, coordinator Dr. Bohne, Germany, Financial support: European Commission for Science

  8. June 2006 – September 2010 Coordinator of the National Research Program, “Optical Coatings for Effective Photothermal Solar Energy Conversion"; Financial support: National Fond “Science Research”, Ministry of Education and Science; Institutions: Central Laboratory of Solar Energy and New Energy Sources, Institute of Electronics, Central Lab. for Optical Imaging of Information, Bulgarian Acad. Sciences, Technical University, Sofia

  9. 2004 – 2007 Project: "Ion-induced crystallization in amorphous media- effects of high-dose implantation with heavy ions”; Financing by the Ministry of Education and Science, National funds for Science; Basic responsibility: Institute of Solid State Physics, Assoc.Prof. Dr. Maria Kalitzova; Personal responcibility: High-Frequency Electromagnetic Field treatment and the research of the newly developed nanomaterial – formation of Te nanoclusters, changes in the electrophysical behaviour of the system (Silicon with NCs)

International Collaboration

  1. 1988 – 1989 Project “Ellipsometric methods for determination of optical parameters and thickness of thin films and crystals”; CL SENES-BAS and the Institute of Semiconductor Physics, Siberian Science Division, Ellipsometry Laboratory, Russian Academy of Sciences, Novosibirsk

  2. 29.01.2002 – 29.01.2004 Project: “Technology and Optical Properties of CVD metal and metal oxide thin films for X-ray Mirrors and Electrochromic Applications”; Financial support: Bulgarian Acad. Sciences and DFG-Germany on a base of Agreement with DFG Germany for common research activities; Institutions: Central Laboratory of Solar Energy and New Energy Sources at the Bulgarian Academy of Sciences; University of Bielefeld, Department of Physics – Frank Hamelmann – Germany

  3. 1990 – 2006 Project: “CVD Materials and methods for deposition of thin films for Micro-and Nano –Electronics”; Financial support: Bulgarian Academy of Sciences, Russian Academy of Sciences; Institutions: Central Laboratory of .Solar Energy and New Energy Sources and the Institute of Solid State Physics from Bulgarian Academy side and Laboratory of Epitaxy, Chernogolovka, Moskow, from Russian Academy; G.Beshkov (ISSP) and Dr. Sergei Shapoval (Russian Academy of Sciences)

Teaching experience

1987 – 1992 Subject: Physics, Task: L, Level: 1; Technical University Physics, Sofia

Talks and presentations

  1. 1980 – Seminar at the Energy Department, Houston University, “Spectrally Selective Surfaces based on Cermet Materials-Black Molibdenum, Invited by Professor Alex Ignatiev

  2. 1979 – Invited talk – seminar at Arizona University, Department of Materials Science and Engineering. Invitation made by Professor Crishna Seshan

  3. 1979/80 – Invitated talk-seminar at Optical Sciences Center at Arizona University

  4. 1980 – Invited talk-seminar, invitation made by Dr. Rick Gentlemen, Title “Black Mo solar absorber coatings technology”, in Rayteon Co. - Boston, Massachuzetz (during the stay of Dr.Gesheva at OSC, AZ University

  5. December 1994 – Invited seminar on Optical and Electronic W/Mo based Thin Films Materials for application in solar energy and as electrical contacts of solar cells” at NREL, Denver, Colorado, USA, (invitation by Professor Satyen Deb, Director of Research Division of NREL

  6. November 1992 – Invited lecture by Dr.Dan Gazit from the Israeli association on crystal growth at the Annual Conference of Izrael Association of Crystal Growth, Rehovot, Izrael, lecture: CVD-Tungsten and Molybdenum Thin Films Technology and Their impact on Solar Energy Conversion and Microelectronics”. Crystal Growth Conference, November, 1992, held in Weisman Institute for Science, Rehovot, Israel.

  7. 1998 – Invited lecture, K. Gesheva, Title: “Optical and Electronic Thin Films grown by Tungsten and Molybdenum Hexacarbonyl CVD Processes”, Tenth International School on Condense Matter Physics “Thin Film Materials and Devices-Developments in Science and Technology”, Varna, Journal: Proceedings of the Tenth In ternational School on Condense Matter Physics, ISCMP Varna’98, Eds: J.Marshall, N.Kirov and A.Vavrek, J.Maud, Key: A Volume: Pros. ISCMP’98, p. 117-124, 1998

Around the Didactics of Physics

  1. An active member of the Editorial Board of the International Journal of Solar Energy Materials since 1983 and since1994 of Solar Energy Matertrials and Solar Cells up to present. As a member invited Editor of a Special Issue, Solar Energy Materials and Solar Cells, vol.76 (2003), Number 4 April 1 2003, pp429-654

  2. Since 2007 invited member of Editorial Board of Open Journal of Material Science

  3. Since 2005 a member of the International Advisory Board of the European Conferences on Chemical Vapour Deposition in connection with the Bulgaria being a member of the Euro-CVD Society

  4. In 2013, September 1-6th in Riviera resort Golden Sands, the next EUROCVD19 will take place in Bulgaria under the Chairing of Profesor K. Gesheva

  5. Member of the Society of physicists in Bulgaria since 1975- 2007

  6. Member of the Society of Vacuum Coaters, 2004, 2005, 2006

  7. Member of the Material Research Society 1995, 1998, 1999

Publications

  1. S. Boyadjiev, N. Stefan, G. Stan, M. Arvizu, I. Szilagyi, A. Visan, N. Mihailescu, I. Mihailescu, C. Besleaga, L. Osterlund, K. Gesheva, Study of the electrochromic properties of MAPLE and PLD deposited WO3 thin films. 21st International Conference of Solid State Ionics, Padua, Italy, 18-23 June 2017

  2. S. Boyadjiev, N. Stefan, I. Szilagyi, N. Mihailescu, A. Visan, I. Mihailescu, G. Stan, C. Besleaga, M. Iliev, K. Gesheva, Characterization of MAPLE deposited WO3 thin films for electrochromic applications, Journal of Physics: Conference Series, 780, IOP Publishing, 2017

  3. G. Bodurov1, P. Stefchev1, T. Ivanova1 and K. Gesheva, 1 Investigation of Electrodeposited NIO Films as Electrochromic Material for Counter Electrodes in “Smart Windows”, Materials Letters (117) 270-272 (2014)

  4. G. Bodurov, T. Ivanova, K. Gesheva, Technology and Application of Transition Metal Oxide of W-V-O as Functional Layers and NiO Thin Films as Counter Electrode Material in Electrochromic “Smart Windows”, Physics Procedia (46) 149-158 (2013)

  5. G. Bodurov*, T. Ivanova, M. Abrashev, Z. Nenova, K. Gesheva, Thin film optical coatings of Vanadium Oxide and mixed Tungsten/Vanadium Oxide deposited by APCVD employing precursors of Vanadyl Acetylacetonate and a mixture with tungsten hexacarbonyl, Physics Procedia (46) 127-136 (2013)

  6. G. Bodurov, T. Ivanova, M. Aleksandrova, K. Gesheva, Optical Characterization of WO3-VOx thin films for application in electrochromic devices - "smart windows", Seventeenth International Summer School on Vacuum, Electron and Ion Technologies VEIT 2011, 19-23 September 2011, Sunny Beach, Bulgaria, Journal of Physics: Conference Series (356) 012016 (2012)

  7. G. Bodurov, N. Boshkov, L. Lutov, T. Ivanova, K. Gesheva, Optical characterization of Zn coatings, deposited on low carbon steel substrates, Seventeenth International Summer School on Vacuum, Electron and Ion Technologies VEIT 2011, 19-23 September 2011, Sunny Beach, Bulgaria, Journal of Physics: Conference Series (356) 012017 (2012)

  8. K. Gesheva, T. Ivanova, G. Bodurov, Transition metal oxide films: technology and “smart windows” electrochromic device performance, Coatings Science International, 27 June -1 July 2011, Netherlands, Prog.Org.Coat. (2011) 74(4) August (2012) 635-639

  9. T. Ivanova, K. Gesheva, M. Kozlov, M. Abrashev, Electrochromic and Optical Study of APCVD MoO3-Cr2O3 Films, poster at EUROCVD 18, Irland, Noordwijk, September 2011, J. of Nanoscience and Nanotechnology (11) 1-7 (2011)

  10. K. Gesheva, T. Ivanova, Electrochromic thin films optical coatings – functional elements in Smart windows, Fourth International Scientific Conference – FMNS2011, 8–11 June 2011, Faculty of Mathematics and Natural Science, South-West University “Neofit Rilski”, Blagoevgrad, Bulgaria; Renewable Energy Technologies Workshop, Proc. FMNS (1) 443 – 454 (2011)

  11. K. Gesheva, T. Ivanova, G. Bodurov, Transition Metal Oxide Films: Technology and Smart Windows Electrochromic Device Performance, Coatings Science International, 27 June - 1 July 2011, Netherlands; 28 June 2011, Session: Functional Coatings I, 9:45-10:15, Prog.Org.Coat.(2011) 74(4) 635-639 (2012)

  12. K. Gesheva, T. Ivanova, M. Kozlov, S. Bojadjiev, Atmospheric Pressure Chemical Vapour Deposition of electro chromic Mo-W thin oxide films: structural, optoelectronic and vibration properties, J. Crystal Growth (312) 1188-1192 (2010)

  13. T. Ivanova1, K. Gesheva , M. Abrashev2, P. Sharlandjiev, D. Nazarova, Optical and Vibration Spectra Analysis of CVD - mixed oxide films: optimization of films electrochromic performance, J. of Physics, Conf. Series (223) 012039 (2010)

  14. G. Dobrikov, M. Russovska, N. Andreev, S. Boyadziev, K. Gesheva, T. Ivanova, P. Sharlandjiev, D. Nazarova, Development of transparent heat mirrors based on metal oxide thin film structures, Thin Solid Films (518) 1091-1094 (2009)

  15. T. Ivanova, K. Gesheva, M. Kalitzova, F. Hamelmann, U. Heinzmann, Electrochromic mixed films based on WO3 and MoO3, obtained by APCVD method, Journalof Optoelectronics and Advanced Materials, 11(10) 1513-1516 (2009)

  16. T. Ivanova, K. Gesheva, M. Kalitzova, F. Hamelmann, F. Luekermann, U. Heinzmann, J. of Optoel. Adv. Mater., 11(10) 1513-1516 (2009) ISSN 1454-41640

  17. G. Beshkov, D. Spassov, T. Ivanova, K. Gesheva, D. Gogova, V. Krastev, Properties of BNx nanolayers prepared by rapid thermal annealing, Journal of Optoelectronics and Advanced Materials, 11(10) 1483-1486 (2009)

  18. K. Gesheva, T. Ivanova, B. Marsen, P. Zollo, M. Kalitzova, Vapour Growth of Electrochromic Thin Films of Transition Metal Oxides, J. Crystal Growth, 310(7-9) 2103-2109 (2008)

  19. K. Gesheva, E. Chain, Chemical Vapor Deposition Technology for Black Molybdenum Spectrally Selective Surfaces based on shorter version of the first two chapters, Nova Science Publishers, N. Y. (2008) 107 pages

  20. T. Ivanova, K. Gesheva, A. Cziraki, A. Szekeres, E. Vlaikova, Structural transformations and their relation to the optoelectronic properties of chromium oxide thin films, Journal of Physics: Conference Series 113(1) 012030 (2008)

  21. M. Kalitzova1, O. Lebedev, G. Zollo, K. Gesheva, E. Vlakhov, Y. Marinov, T. Ivanova, Dynamics of Nanoclustering in Te+ Implanted Si after Application of High Frequency Electromagnetic Field and Thermal Annealing, Applied Physics, A, 91(3) 515–519 (2008)

  22. M. Kalitzova, K. Gesheva, E. Vlakhov, Y. Marinov, T. Ivanova, O. Lebedev, Te+ implanted silicon structure and Electrical Resistance Dependence on High Frequency Electromagnetic Field Annealing , J. of Physics: conf. series (113) 012040 (2008)

  23. K. Gesheva, Thin Film Optical Coatings for Effective Photothermal Solar Energy Utilization, National, Advances in Bulgarian Science (journal of the Center for Information and Documentation at the Ministry of Education and Science), 12-49 (2008)

  24. K. Gesheva, Research and Technology Aspects of CVD transition metal oxide electrochromic thin films. Recent data for the electrochromic materials performance objectives, Recent Development in Solar Energy (chapter)Editor Tom P. Hough, Nova Science Publishers, N.Y. (2007) 145-185

  25. K. Gesheva, A. Cziraki, T. Ivanova, A. Szekeres, Crystallization of chemically vapor deposited molybdenum and mixed tungsten / molybdenum oxide films for electrochromic application, Thin Solid Films, 515(11) 4609-4613 (2007)

  26. Ê. Gesheva, Thin Film Optical Coatings for Efficient Solar Energy Utilization: APCVD Spectrally Selective Surfaces and Energy Control Coatings (2007) Pages 297

  27. K. Gesheva, T. Ivanova, B. Marsen, B. Cole, E. Miller, F. Hamelmann, Structural and surface analysis of Mo–W oxide films prepared by atmospheric pressure chemical vapor deposition, Surface and Coatings Technology 201(22) 9378-9384 (2007)

  28. K. Gesheva, T. Ivanova, F. Hamelmann, O. Trofimov, CVD Transition Metal Oxide Films as Functional Layers in Smart Windows and X-Ray Mirrors, Conference: NATO Advanced Study Institute Functional Properties of Nanostructured Materials, 3-15.06.2005, Journal: NATO book series, Rainer. Kassing, Plamen Petkov, Wilhelm Kulisch, Cyril Popov (Eds), Functional Properties of Nanostructured Materials, NATO Science Series, II Mathematics, Physics and Chemistry (223) 341-349 (2006)

  29. K. Gesheva, T. Ivanova, A Low-Temperature Atmospheric Pressure CVD Process for Growing Thin Films of MoO3 and MoO3-WO3 for Electrochromic Device Applications, Chemical Vapor Deposition 12(4) 231-238 (2006)

  30. T. Ivanova, K. Gesheva, G. Popkirov, M. Ganchev, E. Tzvetkova, Electrochromic properties of atmospheric CVD MoO3 and MoO3–WO3 films and their application in electrochromic devices, Materials Science and Engineering: B 119(3) 232-239 (2005)

  31. F. Hamelmann, K. Gesheva, T. Ivanova, A. Szekeres, M. Abroshev, Optical and electrochromic characterization of multilayered mixed metal oxide thin films, J. Optoelectron. Adv. Mater (7) 393-396 (2005)

  32. K. Gesheva, T. Ivanova, F. Hamelmann, Multilayer systems based on metal oxide thin films for application as electrochromic devices and X-ray mirrors, book 4 of Nanoscience and Nanoechnology conferences, 156-159 (2004) Book title: “Nanostructured materials application and innovation transfer”, Eds. E. Balabanova, I. Dragieva (under the advising of Bulgarian Academy of Sciences, National Expert Council on Nanotechnologies), Heron Press, Sofia (2004)

  33. K Gesheva, A Szekeres, T Ivanova, Optical properties of chemical vapor deposited thin films of molybdenum and tungsten based metal oxides, Solar energy Materials and Solar cells, 76(4) 563-576 (2003)

  34. R. Tanner, A. Szekeres, D. Gogova, K. Gesheva, Study of the surface roughness of CVD-tungsten oxide thin films, Applied surface science 218(1) 163-169 (2003)

  35. A. Szekeres, T. Ivanova, K. Gesheva, Spectroscopic ellipsometry study of CVD molybdenum oxide films: effect of temperature, Journal of Solid State Electrochemistry,7(1) 17-20 (2002)

  36. T. Ivanova, M. Surtchev, K. Gesheva, Investigation of CVD molybdenum oxide films, Materials Letters, 53(4) 250-257 (2002)

  37. T. Ivanova, K. Gesheva, M. Ganchev, E. Tsvetkova, Electrochromic behavior of CVD molibdenum oxide and Mo-W mixed oxide thin films, Proceedings of 12 ISCMP (2002) p. 755-756

  38. T. Ivanova, K. Gesheva, A. Szekeres, Structure and optical properties of CVD molybdenum oxide films for electrochromic application, Journal of Solid State Electrochemistry, 7(1) 21-24 (2002)

  39. T. Ivanova, A. Szekeres, M. Gartner, D. Gogova, K. Gesheva, Spectroscopic characterization of CVD-molybdenum oxide films, Electrochimica acta, 46(13) 2215-2219 (2001)

  40. T. Ivanova, M. Surtchev, K. Gesheva, Characterization of CVD Chromium Oxide thin films, physica status solidi (a), 184(2) 507-513 (2001)

  41. T. Ivanova, K. Gesheva, Influence of the CVD-process parameters on the structure and surface morphology of molybdenum oxide thin films, Proc. of the 11th ISCMP, Varna (2000) p. 256

  42. A. Szekeres, K. Gesheva, D. Gogova, T. Ivanova, The Influence of Oxygen Stream on the Roughness of the Surface Layer of the CVD-WO3 Thin Films”, Proc. of the 11th ISCMP, Varna (2000) Bulgaria, Eds. J. M. Marshall, A.G. Petrov, A. Vavrek, Nesheva D., Dimova-Malinovska, D., Maud, J., Bookscraft, Bath (2000) 264-267

  43. D. Gogova, K. Gesheva, A. Kakanakova-Georgieva, M. Surtchev, Investigation of the structure of tungsten oxide films obtained by chemical vapor deposition, The European Physical Journal Applied Physics, 11(3) 167-174 (2000)

  44. D. Gogova, K. Gesheva, A. Szekeres, M. Sendova-Vassileva, Structural and optical properties of CVD thin tungsten oxide films, Physica Status Solidi a Applied Research, 176(2) 969-984 (1999)

  45. D. Gogova, A. Iossifova, T. Ivanova, Z. Dimitrova, K. Gesheva, Electrochromic behavior in CVD grown tungsten oxide films, Journal of crystal growth (198) 1230-1234 (1999)

  46. O. Harizanov, K. Gesheva, P. Stefchev, Sol-gel and CVD-metal oxide coatings for solar energy utilization, Ceramics international, 22(2) 91-94 (1996)

  47. E. Chain, K. Gesheva, B. Seraphin, Chemically vapor-deposited black molybdenum films of high IR reflectance and significant solar absorptance, Thin Solid Films, 83(4) 387-392 (1981)

  48. K. Gesheva, E. Chain, B. Seraphin, Black molybdenum photothermal converter layers deposited by pyrolytic hydrogen reduction of MoO2 Cl2, Solar Energy Materials, 3(3) 415-424 (1980)

  49. Î. Harizanov, P. Stefchev, K. Gesheva, Increasing of solar installations efficiency by using of spectrally selective surfaces. Conference: International Symposium on new energy sources and fuels – IX, Plovdiv, Proc. (1979)