[ sulge aken ]
| Elulookirjeldus (CV) | ||
| 1. | Eesnimi | Vello |
| 2. | Perekonnanimi | Valdna |
| 3. | Töökoht | Tallinna Tehnikaülikool, Materjaliteaduse instituut |
| 4. | Ametikoht | Vanemteadur |
| 5. | Sünniaeg | 05.11.1937 (päev.kuu.aasta) |
| 6. | Haridus | Tallinna Polütehniline Instituut 1963 Laevajõuseadmete insener-mehaanik Uurali Teaduskeskuse Keemia Instituut 1984 Pooljuhtmat. tehnol./tehnikakandidaat |
| 7. | Teenistuskäik | 1963-1966 Giprorõbfloti Tallinna Osakond insener-konstruktor 1967-1969 Tallinna Polütehniline Instituut aspirant 1970-1992 Tallinna Polütehniline Instituut vanemteadur, juhtivteadur 1993-2005 Tallinna Tehnikaülikool vanemteadur |
| 8. | Teaduskraad | Tehnikakandidaat |
| 9. | Teaduskraadi välja andnud asutus, aasta |
Uurali Teaduskeskuse Keemia Instituut, 1984 |
| 10. | Tunnustused | ENSV teaduspreemia 1984 EV teaduspreemia 1998 |
| 11. | Teadusorganisatsiooniline ja –administratiivne tegevus |
Materials Research Society Eesti Füüsika Selts Eesti Keemia Selts |
| 12. | Juhendamisel kaitstud väitekirjad |
|
| 13. | Teadustöö põhisuunad | II-VI, III-VI ja IV-VI grupi pooljuhtmaterjalide süntees ja defektkoostise uurimine; luminestsentsmaterjalide, kiirgusdetektorite ja päikesekiirguse konverterite väljaarendamine nende ühendite baasil. |
| 14. | Jooksvad grandid | 2003-06, ETF grant 5604, Faasitasakaalud süsteemides Cd-Te-Cl ja päikeseenergia fotovoltmuundurite materjaliarendus; teost.: TTÜ; põhitäitja (töö juht J. Hiie); finants.: ETF. 1997-05, TTÜ ja Bruker AXS, Inc. (USA) vaheline koostööleping V49; teost.: TTÜ, finants.: Bruker AXS, Inc., töö juht V. Valdna. |
| 15. | Teaduspublikatsioonid |
Z.T. Kang, H. Menkara, B.K. Wagner, C.J. Summers, and V. Valdna. Synthesis and characterization of oxygen doped ZnTe for powder phosphor application, JMR, 20 (2005) 2510-2515. V. Valdna. Optoelectronic properties of chlorine and oxygen doped CdTe thin films, Solar Energy Materials & Solar Cells, 87 (2005) 369-373. J. Hiie, V. Valdna, J. Kois, M. Danilson, and V. Mikli. Chemistry of CdCl2:O2 Flux for CdTe Solar Cell Technology, Proc. 19th EPVSECE, Paris, 7-11 June 2004, Vol. II, 1929-1931. Y. Diawara, R.D. Durst, G. Mednikova, T. Thorson, J. Hiie, V. Valdna. Scintillators for high efficiency and high spatial resolution in x-ray imaging applications, Proceedings of SPIE (2004), Vol. 5198 (Hard X-Ray And Gamma-Ray Detector Physics V), 119-125. J. Hiie, V. Valdna and A. Taklaja. Modeling of Flux Composition for Thermal CdCl2:O2 Annealing of Polycrystalline CdTe, in: Mat. Res. Soc. Symp. Proc. Vol. 763 (2003) 397-402. V. Valdna and J. Hiie. Efficiency Limits of CdTe Thin Film Solar Cells, Proceedings of the 17th European PVSE Conference, Munich, Germany 2002, 1233-1235. V. Valdna and R.D. Durst. High efficiency polycrystalline phosphors and method of making same, US Patent Application No 09/313,565 filed May 14, 1999. European Patent Office Application No. 99113410.7-2102 filed 12.07.99. US Patent 6,254,806 B1, granted on July 3, 2001. V. Valdna. Influence of Copper and Oxygen on the Optoelectronic Properties of Chlorine Doped CdTe Thin Films, Thin Solid Films, 387 (2001) 192-194. V. Valdna, J. Hiie and A. Gavrilov. Defects in Chlorine Doped CdTe Thin Films, in: Polycrystalline Semiconductors VI – Bulk Materials, Thin Films, and Devices, O. Bonnaud, T. Mohammed-Brahim, H.P. Strunk, J.H. Werner, eds., in Series `Solid State Phenomena` Vols. 80-81, Scitech Publ., Uettikon am See, Switzerland 2001, 155-160. V. Valdna. Stability of Chlorine-based Complex Defects in Group II-VI Semiconductors, Physica B: Physics of Condensed Matter, 308-310 (2001) 939-941. J. Hiie and V. Valdna. Control of p-type Conductivity in CdTe by CdCl2 Vapor Phase Treatment, in: Proc. EUROMAT´99 Vol. 13, Functional Materials, Eds.: K. Grassie, E. Tenckhoff, G. Wegner, J. Hausselt and H. Hanselka, Wiley-VCH, Weinheim 2000, 261-266. V. Valdna. Defects in CdTe-Based Photodetectors, in: Mat. Res. Soc. Symp. Proc. Vol. 607, Infrared Applications of Semiconductors III, Eds.: M. O. Manasreh, B. J. H. Stadler, I. Ferguson and Yong-Hang Zhang, Warrendale, Pennsylvania 2000, 241-246. V. Valdna. Optoelectronic Properties of CdTe Thin Films, in: Proc. EUROMAT´99 Vol. 9, Interface Controlled Materials, Eds.: M. Rühle and H. Gleiter, Wiley-VCH, Weinheim 2000, 89-95. V. Valdna, R. Durst and A. Mere. Experimental Studies of ZnS-based Phosphors, in: Proc. EUROMAT´99 Vol. 13, Functional Materials, Eds.: K. Grassie, E. Tenckhoff, G. Wegner, J. Hausselt and H. Hanselka, Wiley-VCH, Weinheim 2000, 117-120. V. Valdna, R. Durst, J. Hiie, L. Jones and U. Kallavus. Complex Defects in ZnSe-based Phosphors, in: Proc. EUROMAT´99 Vol. 13, Functional Materials, Eds.: K. Grassie, E. Tenckhoff, G. Wegner, J. Hausselt and H. Hanselka, Wiley-VCH, Weinheim 2000, 112-116. J. Hiie and V.Valdna. Annealing of Bulk Crystalline CdTe under CdCl2 Controlled Vapor Pressure, in: Proc. E-MRS 1999 Spring Meeting, Strasbourg 1999, O-PS 3/P16. V. Valdna. p-Type Doping of CdTe, in: Polycrystalline Semiconductors V – Bulk Materials, Thin Films, and Devices, J.H. Werner, H.P. Strunk, H.W. Schock eds., in Series `Solid State Phenomena` Vols. 67-68, Scitech Publ., Uettikon am See, Switzerland 1999, 309-314. V. Valdna. Stability of p-Type CdTe Thin Films, in: Proc. E-MRS 1999 Spring Meeting, Strasbourg 1999, O-PS 3/P19. Y. Diawara, R.D. Durst, V. Valdna. Improved X-ray Phosphors for CCD-based Detectors, in: ACA Reports, Arlington, Virginia, July 18-23, 1998, P022. J. Hiie, V. Valdna, E. Mellikov, M. Altosaar. Photoconductivity formation in CdTe in the annealing process, in: Optical Organic and Semiconductor Inorcanic Materials, Edgar A. Silinsh, Arthur Medvid, Andrejs R. Lusis, Andris O. Ozols, Editors, Proc. SPIE 2968, 123 (1997). J. Krustok, H. Collan, K. Hjelt, J. Mädasson, V. Valdna. Photoluminescence from deep acceptor - deep donor complexes in CdTe, Journal of Luminescence, 72-74 (1997) 103. V. Valdna. Complex defects in Cl doped ZnTe and CdTe, in: Mat. Res. Soc. Symp. Proc. Vol. 442 (1997) 585-591. V. Valdna. Effect of the Vacuum Annealing on p-type CdTe, Physica Scripta, Vol. T69 (1997) 315-318. V. Valdna, E. Mellikov and A. Mere. Photoluminescence of Zn(SeTe) Annealed Phosphors, Physica Scripta, Vol. T69 (1997) 312-314. V. Valdna, J. Hiie, E. Mellikov and A. Mere. (ZnCd)S, (ZnCd)Se and Zn(SeTe) Downconverting Phosphors, Physica Scripta, Vol. T69 (1997) 319-320. V. Valdna, T. Gavrish, J. Hiie, E. Mellikov and A. Mere. Group II-VI downconverting phosphors, in: Mat. Res. Soc. Symp. Proc. Vol. 450 (1997) 463-466 J. Krustok, V. Valdna, K. Hjelt, H. Collan. Deep center luminescence in p-type CdTe, J. Appl. Phys., 80, N3 (1996) 1757-1762. K. Hjelt, H. Collan, J. Krustok and V. Valdna. Photoluminescence study of the 1.1 eV deep emission band in p-type CdTe, in: Proc. of the XXX Annual Conference of the Finnish Physical Society, Espoo, Finland, March 21-23, 1996, 8.29. V.Valdna, F.Buschmann and E.Mellikov. Conductivity Conversion in CdTe Layers. J. Crystal Growth 161 (1996) 164-167. V.Valdna, J.Hiie, U.Kallavus, A.Mere and T.Piibe. ZnSe1-xTex Solid Solutions. J. Crystal Growth 161 (1996) 177-180. |
viimati muudetud: 26.09.2005
| Curriculum Vitae (CV) | ||
| 1. | First Name | Vello |
| 2. | Surname | Valdna |
| 3. | Institution | Tallinn University of Technology, Department of Materials Science |
| 4. | Position | Senior researcher |
| 5. | Date of birth | 05.11.1937 (day.month.year) |
| 6. | Education | Tallinn Institute of Technology 1963 Power engineer Ural Science Centre, Inst. of Chemistry 1984 Ph D (technology of semiconductor materials) |
| 7. | Research and professional experience |
1963-1966 Tallinn Department of Giprorybflot, designer 1967-1969 Tallinn Institute of Technology, doctora student 1970-1992 Tallinn Institute of Technology, senior researcher, chief researcher 1993-2005 Tallinn University of Technology, senior researcher |
| 8. | Academic degree | Ph D |
| 9. | Dates and sites of earning the degrees |
Ural Science Centre, Institute of Chemistry, 1984 |
| 10. | Honours/awards | 1985 Science Award of Soviet Estonia 1998 Science Award of Republic of Estonia |
| 11. | Research-administrative experience |
Materials Research Society Estonian Physical Society Estonian Chemical Society |
| 12. | Supervised dissertations | |
| 13. | Current research program | Synthesis and investigation of the defect composition of group II-VI, III-VI and IV-VI semiconductor materials; development of the luminescence materials, radiation detectors and solar cells based on these compounds. |
| 14. | Current grant funding | 2003-06, ESF grant 5604, Phase Equilibrium in Cd-Te-O-Cl Systems and Development of PV Solar Cell Materials, performer (principal performer J. Hiie). 1997-05, Development Agreement Between TTU and Bruker AXS, Inc., TTU contract V49, principal performer V. Valdna. |
| 15. | List of most important publications |
Z.T. Kang, H. Menkara, B.K. Wagner, C.J. Summers, and V. Valdna. Synthesis and characterization of oxygen doped ZnTe for powder phosphor application, JMR, 20 (2005) 2510-2515. V. Valdna. Optoelectronic properties of chlorine and oxygen doped CdTe thin films, Solar Energy Materials & Solar Cells, 87 (2005) 369-373. J. Hiie, V. Valdna, J. Kois, M. Danilson, and V. Mikli. Chemistry of CdCl2:O2 Flux for CdTe Solar Cell Technology, Proc. 19th EPVSECE, Paris, 7-11 June 2004, Vol. II, 1929-1931. Y. Diawara, R.D. Durst, G. Mednikova, T. Thorson, J. Hiie, V. Valdna. Scintillators for high efficiency and high spatial resolution in x-ray imaging applications, Proceedings of SPIE (2004), Vol. 5198 (Hard X-Ray And Gamma-Ray Detector Physics V), 119-125. J. Hiie, V. Valdna and A. Taklaja. Modeling of Flux Composition for Thermal CdCl2:O2 Annealing of Polycrystalline CdTe, in: Mat. Res. Soc. Symp. Proc. Vol. 763 (2003) 397-402. V. Valdna and J. Hiie. Efficiency Limits of CdTe Thin Film Solar Cells, Proceedings of the 17th European PVSE Conference, Munich, Germany 2002, 1233-1235. V. Valdna and R.D. Durst. High efficiency polycrystalline phosphors and method of making same, US Patent Application No 09/313,565 filed May 14, 1999. European Patent Office Application No. 99113410.7-2102 filed 12.07.99. US Patent 6,254,806 B1, granted on July 3, 2001. V. Valdna. Influence of Copper and Oxygen on the Optoelectronic Properties of Chlorine Doped CdTe Thin Films, Thin Solid Films, 387 (2001) 192-194. V. Valdna, J. Hiie and A. Gavrilov. Defects in Chlorine Doped CdTe Thin Films, in: Polycrystalline Semiconductors VI – Bulk Materials, Thin Films, and Devices, O. Bonnaud, T. Mohammed-Brahim, H.P. Strunk, J.H. Werner, eds., in Series `Solid State Phenomena` Vols. 80-81, Scitech Publ., Uettikon am See, Switzerland 2001, 155-160. V. Valdna. Stability of Chlorine-based Complex Defects in Group II-VI Semiconductors, Physica B: Physics of Condensed Matter, 308-310 (2001) 939-941. J. Hiie and V. Valdna. Control of p-type Conductivity in CdTe by CdCl2 Vapor Phase Treatment, in: Proc. EUROMAT´99 Vol. 13, Functional Materials, Eds.: K. Grassie, E. Tenckhoff, G. Wegner, J. Hausselt and H. Hanselka, Wiley-VCH, Weinheim 2000, 261-266. V. Valdna. Defects in CdTe-Based Photodetectors, in: Mat. Res. Soc. Symp. Proc. Vol. 607, Infrared Applications of Semiconductors III, Eds.: M. O. Manasreh, B. J. H. Stadler, I. Ferguson and Yong-Hang Zhang, Warrendale, Pennsylvania 2000, 241-246. V. Valdna. Optoelectronic Properties of CdTe Thin Films, in: Proc. EUROMAT´99 Vol. 9, Interface Controlled Materials, Eds.: M. Rühle and H. Gleiter, Wiley-VCH, Weinheim 2000, 89-95. V. Valdna, R. Durst and A. Mere. Experimental Studies of ZnS-based Phosphors, in: Proc. EUROMAT´99 Vol. 13, Functional Materials, Eds.: K. Grassie, E. Tenckhoff, G. Wegner, J. Hausselt and H. Hanselka, Wiley-VCH, Weinheim 2000, 117-120. V. Valdna, R. Durst, J. Hiie, L. Jones and U. Kallavus. Complex Defects in ZnSe-based Phosphors, in: Proc. EUROMAT´99 Vol. 13, Functional Materials, Eds.: K. Grassie, E. Tenckhoff, G. Wegner, J. Hausselt and H. Hanselka, Wiley-VCH, Weinheim 2000, 112-116. J. Hiie and V.Valdna. Annealing of Bulk Crystalline CdTe under CdCl2 Controlled Vapor Pressure, in: Proc. E-MRS 1999 Spring Meeting, Strasbourg 1999, O-PS 3/P16. V. Valdna. p-Type Doping of CdTe, in: Polycrystalline Semiconductors V – Bulk Materials, Thin Films, and Devices, J.H. Werner, H.P. Strunk, H.W. Schock eds., in Series `Solid State Phenomena` Vols. 67-68, Scitech Publ., Uettikon am See, Switzerland 1999, 309-314. V. Valdna. Stability of p-Type CdTe Thin Films, in: Proc. E-MRS 1999 Spring Meeting, Strasbourg 1999, O-PS 3/P19. Y. Diawara, R.D. Durst, V. Valdna. Improved X-ray Phosphors for CCD-based Detectors, in: ACA Reports, Arlington, Virginia, July 18-23, 1998, P022. J. Hiie, V. Valdna, E. Mellikov, M. Altosaar. Photoconductivity formation in CdTe in the annealing process, in: Optical Organic and Semiconductor Inorcanic Materials, Edgar A. Silinsh, Arthur Medvid, Andrejs R. Lusis, Andris O. Ozols, Editors, Proc. SPIE 2968, 123 (1997). J. Krustok, H. Collan, K. Hjelt, J. Mädasson, V. Valdna. Photoluminescence from deep acceptor - deep donor complexes in CdTe, Journal of Luminescence, 72-74 (1997) 103. V. Valdna. Complex defects in Cl doped ZnTe and CdTe, in: Mat. Res. Soc. Symp. Proc. Vol. 442 (1997) 585-591. V. Valdna. Effect of the Vacuum Annealing on p-type CdTe, Physica Scripta, Vol. T69 (1997) 315-318. V. Valdna, E. Mellikov and A. Mere. Photoluminescence of Zn(SeTe) Annealed Phosphors, Physica Scripta, Vol. T69 (1997) 312-314. V. Valdna, J. Hiie, E. Mellikov and A. Mere. (ZnCd)S, (ZnCd)Se and Zn(SeTe) Downconverting Phosphors, Physica Scripta, Vol. T69 (1997) 319-320. V. Valdna, T. Gavrish, J. Hiie, E. Mellikov and A. Mere. Group II-VI downconverting phosphors, in: Mat. Res. Soc. Symp. Proc. Vol. 450 (1997) 463-466 J. Krustok, V. Valdna, K. Hjelt, H. Collan. Deep center luminescence in p-type CdTe, J. Appl. Phys., 80, N3 (1996) 1757-1762. K. Hjelt, H. Collan, J. Krustok and V. Valdna. Photoluminescence study of the 1.1 eV deep emission band in p-type CdTe, in: Proc. of the XXX Annual Conference of the Finnish Physical Society, Espoo, Finland, March 21-23, 1996, 8.29. V.Valdna, F.Buschmann and E.Mellikov. Conductivity Conversion in CdTe Layers. J. Crystal Growth 161 (1996) 164-167. V.Valdna, J.Hiie, U.Kallavus, A.Mere and T.Piibe. ZnSe1-xTex Solid Solutions. J. Crystal Growth 161 (1996) 177-180. |
last updated: 26.09.2005
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