Semi-insulating InP detectors for solar neutrino experiments

Ti and Mn co-doped semi-insulating InP particle detectors operating at room temperature

“…The best results on InP:Fe particle detectors 75% of the CCE and the energy resolution in FWHM 4.5% at 230 V also 60% of the CCE and 7.5% of the energy resolution in FWHM at 300 V obtained at RT, as well 90% of the CCE and the energy resolution in FWHM 3.7% obtained at 250 K with bias voltage 350 V have been published by Pelfer et al in Refs. [1,4] and Dubecky et al in Ref. [5].…”

“…To make a comparison of our best results of the CCE 52% and 17% of an energy resolution in FWHM at RT and also 91% of the CCE and 3.4% of an energy resolution in FWHM at 250 K registered with SI InP:(Ti+Mn) to the results reported by Pelfer et al [1,4] or Dubecky et al [5] and taking into account that our best results were obtained with 25 V at RT and 110 V and 250 K, they can be attributed as to ones of the best results obtained with aparticle detection on SI InP.…”

“…The detection performance of such detectors in most cases has been tested at reduced temperatures [1][2][3]. Some of the most attractive works about particle detectors based on InP doped with Fe operating at RT were published in [4][5][6]. Different technology, vertical gradient freeze (VGF) technique used for growth of the Fe-doped InP crystals was reported by El-Abbassi et al [7].…”

“…In the literature [1][2][3][4][5][6], InP-based detectors are commonly prepared on semi-insulating (SI) InP doped with a deep acceptor of Fe. The detection performance of such detectors in most cases has been tested at reduced temperatures [1][2][3].…”

Room-temperature particle detectors with guard rings based on semi-insulating InP co-doped with Ti and Zn

“…Earlier studies used iron-doped SI material grown by the Liquid-Encapsulated Czochralski (LEC) method [1][2][3][4][5][6][7] have shown that detectors based on this material possess low CCE and poor energy resolution (R). This is largely due to the high electron and hole capture rate on Fe dopant and the creation of FeP 2 precipitates at the highest Fe concentration in the crystal.…”