• A PL study of deep bands in CuIn1-xGaxSe2Krustok, Jüri; Raudoja, Jaan; Yakushev, M.V.; Pilkington, R.D.; Hill, A.E.; Collan, HeikkiTwelfth International Conference on Ternary and Multinary Compounds : March 13-17, 2000 : National Tsing Hua University, Hsinchu, Taiwan : abstract[s]2000 / p. P2-61
• Comment on "Line shape, line width and configuration coordinate diagram of the Cu band (1.21eV) in InP" [J. Appl. Phys. 78 (1995) p. 5206]Collan, Heikki; Krustok, JüriJournal of applied physics1996 / 3, p. 1937-1939
• 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
• Erratum: Origin of the deep center photoluminescence in CuGaSe2 and CuInS2 crystals (J.Appl. Phys. 86, 364(1999))Krustok, Jüri; Schön, J.H.; Collan, Heikki; Yakushev, M.; Mädasson, Jaan; Bucher, E.Journal of applied physics2001 / 12, p. 8357-8358
• Nature of the native deep localized defect recombination centers in the chalcopyrite and orthorhombic AgInS2Krustok, Jüri; Raudoja, Jaan; Krunks, Malle; Mändar, H.; Collan, HeikkiJournal of applied physics2000 / 1, p. 205-209 : ill https://pubs.aip.org/aip/jap/article/88/1/205/486608/Nature-of-the-native-deep-localized-defect
• On the shape of the close-to-band-edge photoluminescent emission spectrum in compensated CuGaSe2Krustok, Jüri; Raudoja, Jaan; Yakushev, M.; Pilkington, R.D.; Collan, HeikkiPhysica status solidi (a)1999 / p. 483-490 https://onlinelibrary.wiley.com/doi/abs/10.1002/%28SICI%291521-396X%28199906%29173%3A2%3C483%3A%3AAID-PSSA483%3E3.0.CO%3B2-A
• 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
• Origin of the deep center photoluminescence in CuGaSe2 and CuInS2 crystalsKrustok, Jüri; Schön, J.H.; Collan, Heikki; Yakushev, M.; Mädasson, Jaan; Bucher, E.Journal of applied physics1999 / 1, p. 364-369: ill
• 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 and tetragonal distortion in CuInSe2Krustok, Jüri; Raudoja, Jaan; Collan, HeikkiAbstracts E-MRS-IUMRS2000 / p. N-22
• Photoluminescence and the tetragonal disortion in CuInS2Krustok, Jüri; Raudoja, Jaan; Collan, HeikkiThin solid films2001 / p. 195-197
• 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 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 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 deep defect pairs in chalcopyrite ternariesKrustok, Jüri; Raudoja, Jaan; Schön, J.H.; Yakushev, M.; Collan, HeikkiProceedings of the 16th European Photovoltaic Solar Energy Conference. 12001 / p. 887-890 https://tiedejatutkimus.fi/fi/results/publication/0353121300
• Photoluminescence of Se-annealed CuInSe2 powdersHjelt, Kari; Collan, Heikki; Krustok, Jüri; Mädasson, JaanAnnual report of Optoelectronic Laboratory1994 / p. 33-35
• Photoluminescence study of deep levels in CuGaTe2 crystalsKrustok, Jüri; Raudoja, Jaan; Yakushev, M.; Pilkington, R.D.; Collan, HeikkiJournal of applied physics1999 / 9, p. 5305-5307: ill
• 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 deep donor-deep acceptor complexes in Cis-related compoundsKrustok, Jüri; Raudoja, Jaan; Schön, J.H.; Yakushev, M.; Collan, HeikkiThin solid films2000 / p. 406-410 : ill https://www.sciencedirect.com/science/article/abs/pii/S0040609099007567
• The role of deep donor-deep acceptor complexes in CIS-related compoundsKrustok, Jüri; Raudoja, Jaan; Schön, J.H.; Yakushev, M.; Collan, HeikkiE-MRS Spring Meeting : Strasbourg, 1999 : abstracts1999 / p. O https://deepzone4.ttu.ee/~juri.krustok/PDF-s/TSF-406.pdf
• 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 https://ui.adsabs.harvard.edu/abs/1999PhST...79..179K/abstract
• 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 https://deepzone4.ttu.ee/~juri.krustok/PDF-s/PHYSSCR.PDF