- Configuration-coordinate model and the defect states of semiconductors, CdTe in particularHjelt, Kari; Collan, Heikki; Krustok, Jüri; Mädasson, JaanAnnual report 1994 / Optoelectronics Laboratory, Helsinki University of Technology1995 / p. 50-51
- Deep center luminescence in p-type CdTeKrustok, Jüri; Valdna, Vello; Hjelt, Kari; Collan, HeikkiJournal of applied physics1996 / 3, p. 1757-1762: ill
- Does the low-temperature Arrhenius plot of the photoluminescence intensity in CdTe point towards an erroneous activation energy?Krustok, Jüri; Collan, Heikki; Hjelt, KariJournal of applied physics1997 / 3, p. 1442-1445: ill
- 1.4 eV photoluminescence in chlorine-doped polycrystalline CdTeHjelt, Kari; Collan, Heikki; Krustok, Jüri; Mädasson, JaanAnnual report 1994 / Optoelectronics Laboratory, Helsinki University of Technology1995 / p. 47-48
- 1.4 eV photoluminescence in chlorine-doped polycrystalline CdTe with a high density of defectsKrustok, Jüri; Mädasson, Jaan; Collan, Heikki; Hjelt, KariJournal of materials science1997 / p. 1545-1550: ill https://link.springer.com/article/10.1023/A:1018526622440
- 1.4-eV photoluminescence in cholorine doped plycrystalline CdTeKrustok, Jüri; Mädasson, Jaan; Hjelt, Kari; Collan, HeikkiJournal of physics and chemistry of solids1994
- Photoluminescence and photoluminescence excitation study of CuGaTe2Krustok, Jüri; Collan, Heikki; Hjelt, Kari; Yakushev, M.; Hill, A.E.; Tomlinson, R.D.; Mändar, H.; Neumann, H.Journal of applied physics1998 / 12, p. 7867-7872: ill
- Photoluminescence and photoluminescence excitation study of CuGaTe2Hjelt, Kari; Krustok, Jüri; Yakushev, M.; Collan, Heikki; Hill, A.E.; Tomlinson, R.D.Book of abstracts of the 11th International Conference on Ternary & Multinary Compounds, 8-12 September 1997, Salford, England1997 / p. 1.106
- Photoluminescence from deep acceptor - deep donor complexes in CdTeKrustok, Jüri; Collan, Heikki; Hjelt, Kari; Mädasson, Jaan; Valdna, VelloICL'96, Prague : International Conference on Luminescence and Optical Spectroscopy of Condensed Matter, Prague, Czech Republic, 18-23 August 19961996 / p. 1-17
- Photoluminescence from deep acceptor - deep donor complexes in CdTeKrustok, Jüri; Collan, Heikki; Hjelt, Kari; Mädasson, Jaan; Valdna, VelloJournal of luminescence1997 / p. 103-105: ill
- Photoluminescence of AgInSe2Hjelt, Kari; Krustok, Jüri; Yakushev, M.; Collan, Heikki; Hill, A.E.; Tomlinson, R.D.Book of abstracts of the 11th International Conference on Ternary & Multinary Compounds, 8-12 September 1997, Salford, England1997 / p. 1.107
- Photoluminescence of Sc-annealed CuIuSe2 powdersKrustok, Jüri; Mädasson, Jaan; Hjelt, KariJournal of physics and chemistry of solids1993
- Photoluminescence of Se-annealed CuInSe2 powdersHjelt, Kari; Collan, Heikki; Krustok, Jüri; Mädasson, JaanAnnual report of Optoelectronic Laboratory1994 / p. 33-35
- Photoluminescence of Se-annealed CuInSe2 powdersKrustok, Jüri; Mädasson, Jaan; Hjelt, KariJournal of materials science letters1994 / 13, p. 1570-1572
- Photoluminescence study of some solar cell materialsHjelt, Kari; Collan, Heikki; Krustok, Jüri; Mädasson, JaanXXIX Annual Conference of the Finnish Physical Society : proceedings1995 / p. 7.33
- Photoluminescence study of the 1.1 eV deep emission band in p-type CdTeHjelt, Kari; Collan, Heikki; Krustok, Jüri; Valdna, VelloProceedings of the XXX Annual Conference of the Finnish Physical Society : March 21-23, 1996, Espoo, Finland1996 / 8.29
- Photoluminescense of AgInSe2Hjelt, Kari; Krustok, Jüri; Yakushev, M.; Collan, Heikki; Hill, A.E.; Tomlinson, R.D.Ternary and Multinary Compounds : proceedings of the 11th International Conference on Ternary and Multinary Compounds, ICTMC-11, University of Salford, 8-12 September 19971998 / p. 441-444: ill
- Study of the edge and exciton emission in CdTe:Cu:Cl powder samplesKrustok, Jüri; Mädasson, Jaan; Hjelt, Kari; Collan, HeikkiJournal of materials science letters1995 / p. 1490-1492: ill
- Study of the edge and exciton emission in the CdTe:Cu:Cl powder samplesHjelt, Kari; Collan, Heikki; Krustok, Jüri; Mädasson, JaanAnnual report 1994 / Optoelectronics Laboratory, Helsinki University of Technology1995 / p. 49
- Temperature-resolved photoluminescence studies of CuInSe2Krustok, Jüri; Mädasson, Jaan; Hjelt, Kari; Collan, HeikkiSolid state communications1995 / 10, p. 889-892
- The role of spatial potential fluctuations in the shape of the PL bands of multinary semiconductor compoundsKrustok, Jüri; Collan, Heikki; Yakushev, M.; Hjelt, KariPhysica scripta1999 / Proceedings of 18th Nordic Semiconductor Meeting, Linköping, Sweden, June 7-10, 1998, ISBN 91-87308-71-1, p. 179-182: ill
- The role of spatial potential fluctuations in the shape of the PL bands of multinary semiconductor compoundsKrustok, Jüri; Collan, Heikki; Yakushev, M.; Hjelt, Kari18th Nordic Semiconductor Meeting, Linköping, June 7-10, 1998 : abstracts1998 / p. F-84