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- W1966228630 abstract "Zinc telluride samples are implanted with phosphorus or arsenic ions and subjected to postimplantation isochronal heat treatments in vacuum in the temperature range 50 to 500°C. After each annealing treatment of a sample the cathodoluminescence emission spectrum is recorded at liquid helium temperature. Annealing at 350°C produces new edge emission bands at 531.9 nm in ZnTe:P and at 533.2 nm in ZnTe:As. Both bands increase superlinearly in intensity on increasing the anneal temperature to 500°C. Temperature dependence of emission intensity measurements and time-resolved spectroscopy measurements indicate that the 531.9 and 533.2 nm bands result from free-to-bound recombination at PTe and AsTe acceptors, respectively. Broad bands lying very close to the band edge in the high-temperature emission spectra of ZnTe:P and ZnTe:As are attributed to bound-to-free recombination involving Pi or Asi donors.Zinktelluridproben werden mit Phosphor- und Arsenionen implantiert und einer isochronen Temperung nach der Implantation im Vakuum bei Temperaturen zwischen 50 und 500°C unterworfen. Nach jeder Temperung einer Probe wird das Kathodolumineszenzspektrum bei der Temperatur des flussigen Heliums gemessen. Temperung bei 350°C ruft neue Kantenemissionsbanden bei 531,9 nm in ZnTe:P und 533,2 nm in ZnTe:As hervor. Beide Banden nehmen in der Intensitat bei steigender Temperungstemperatur bis 500°C superlinear zu. Die Messungen der Temperaturabhangigkeit der Emissionsintensitat und zeitaufgeloste Spektroskopie zeigen, das die 531,9 und 533,2 nm-Banden aus der Rekombination von freien zu gebundenen Zustanden an PTe- bzw. AsTe-Akzeptoren herruhren. Breite Banden, die sehr nahe an der Bandkante in den Hochtemperaturemissionsspektren von ZnTe:P und ZnTe:As liegen, werden der Rekombination von freien zu gebundenen Zustanden zugeschrieben, die Pi- und Asi-Donatoren enthalten." @default.
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- W1966228630 date "1980-08-16" @default.
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- W1966228630 title "Edge emission in phosphorus-implanted and arsenic-implanted zinc telluride" @default.
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- W1966228630 doi "https://doi.org/10.1002/pssa.2210600223" @default.
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