DOI: 10.1063/1.1661888. Hole mobility and Poole-Frenkel effect in CdTe

Hole mobility and Poole-Frenkel effect in CdTe

10.1063/1.1661888

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

We have performed, with the time-of-flight technique, an extensive investigation of the transport properties of holes in high-resistivity CdTe as a function of temperature between 130 and 430 °K and for electric fields between 5 kV/cm and 50 kV/cm. In all investigated samples, at temperatures below 300 °K, the experimental hole mobility decreases on lowering either the temperature or the electric field. These features have been interpreted on the basis of the electric field effect on trapping and detrapping phenomena (Poole-Frenkel effect) which cause a reduction of the mobility. A critical review of the existing theories of the Poole-Frenkel effect is presented. The Poole-Frenkel constant obtained by comparing the experimental data with the most reliable theories of the Poole-Frenkel effect is in excellent agreement with its theoretical value. By analysis of the experimental data it was also possible to estimate the activation energy (Et=0.14 eV) and the concentration (NT=5×1016 cm−3) of the traps which caused the reduction of the mobility. These traps may be due to cadmium vacancies and the value of their concentration found here is in good agreement with previous estimates made in the same material.

Bibliography

Ottaviani, G., Canali, C., Jacoboni, C., Quaranta, A. A., & Zanio, K. (1973). Hole mobility and Poole-Frenkel effect in CdTe. Journal of Applied Physics, 44(1), 360â371.

Authors 5

G. Ottaviani (first)
C. Canali (additional)
C. Jacoboni (additional)
A. Alberigi Quaranta (additional)
K. Zanio (additional)

References 54 Referenced 50

{'key': '2024020204275566900_r1', 'first-page': '422', 'volume': '4', 'year': '1971', 'journal-title': 'Phys. Rev. B'} / Phys. Rev. B (1971)
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Dates

Type	When
Created	21 years, 6 months ago (Feb. 4, 2004, 12:26 p.m.)
Deposited	1 year, 6 months ago (Feb. 1, 2024, 11:28 p.m.)
Indexed	1 month, 3 weeks ago (July 1, 2025, 3:47 a.m.)
Issued	52 years, 7 months ago (Jan. 1, 1973)
Published	52 years, 7 months ago (Jan. 1, 1973)
Published Print	52 years, 7 months ago (Jan. 1, 1973)

Funders 0

None

BibTeX

@article{Ottaviani_1973, title={Hole mobility and Poole-Frenkel effect in CdTe}, volume={44}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1661888}, DOI={10.1063/1.1661888}, number={1}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Ottaviani, G. and Canali, C. and Jacoboni, C. and Quaranta, A. Alberigi and Zanio, K.}, year={1973}, month=jan, pages={360–371} }

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    "date-parts": [
      [
        1973,
        1,
        1
      ]
    ]
  },
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  "journal-issue": {
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    "published-print": {
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          1
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      ]
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  "URL": "http://dx.doi.org/10.1063/1.1661888",
  "relation": {},
  "ISSN": [
    "0021-8979",
    "1089-7550"
  ],
  "subject": [],
  "published-other": {
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        1
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}