Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe

He Yuanjin; Xin Mingrui; Zhang Tianbao

Chinese Physics C> 1994, Vol. 18> Issue(S3) : 315-319

Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe

1. Department of Physics, Tsinghua University, Beijing, China;
2. Lishan Microelectronics Inc., Xian, Shanxi, China;
3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China

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Abstract：
A new measurement method of characteristic lifetime of positron annihilation in mercury cadmium telluride (MCT) in thermoequilibrium with mercury vapor was proposed. A result of τ_b the annihilation lifetime of positrons in bulk state in HgCdTe, being 277±lps,and τ_b, the lifetime of positrons trapped in mercury vacancies,being 306±2ps was obtained. The result was discussed and compared with that from other methods.
- positron annihilation ,
- defects in mercury cadmium telluride semiconductors ,
- mercury vacancies

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He Yuanjin, Xin Mingrui and Zhang Tianbao. Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe[J]. Chinese Physics C, 1994, 18(S3): 315-319.

He Yuanjin, Xin Mingrui and Zhang Tianbao. Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe[J]. Chinese Physics C, 1994, 18(S3): 315-319. shu

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Received: 1993-04-23

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沈阳化工大学材料科学与工程学院沈阳 110142

Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe

1. Department of Physics, Tsinghua University, Beijing, China;
2. Lishan Microelectronics Inc., Xian, Shanxi, China;
3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China

Received Date: 1993-04-23

Abstract: A new measurement method of characteristic lifetime of positron annihilation in mercury cadmium telluride (MCT) in thermoequilibrium with mercury vapor was proposed. A result of τ_b the annihilation lifetime of positrons in bulk state in HgCdTe, being 277±lps,and τ_b, the lifetime of positrons trapped in mercury vacancies,being 306±2ps was obtained. The result was discussed and compared with that from other methods.