The photocurrent (PC) variation of photoconductive ZnAl<sub>2</sub>Se<sub>4</sub> layers was investigated as a function of temperature. Three PC peaks corresponding to band-to-band transitions were observed. From the relation b...
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https://www.riss.kr/link?id=A104324784
2013
English
KCI등재,SCI,SCIE,SCOPUS
학술저널
628-633(6쪽)
4
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
The photocurrent (PC) variation of photoconductive ZnAl<sub>2</sub>Se<sub>4</sub> layers was investigated as a function of temperature. Three PC peaks corresponding to band-to-band transitions were observed. From the relation b...
The photocurrent (PC) variation of photoconductive ZnAl<sub>2</sub>Se<sub>4</sub> layers was investigated as a function of temperature. Three PC peaks corresponding to band-to-band transitions were observed. From the relation between the temperature and the PC-peak position, the temperature-dependent band-gap energy E<sub>g</sub> was well described by <i>E<sub>g</sub></i>(<i>T</i>) = <i>E<sub>g</sub></i>(0) - (1.94 × 10<sup>−3</sup>)<i>T</i><sup>2</sup>/(468 + <i>T</i>). Also, <i>E<sub>g</sub></i>(0) was estimated to be 3.5268, 3.6148, and 3.7178 eV at the valence band states of Γ<sub>4</sub>(z), Γ<sub>5</sub>(x), and Γ<sub>5</sub>(y), respectively. A characteristic splitting of the valence band governed by the selection rule was first observed through the method of PC spectroscopy. We noted that the crystal-field splitting and spin-orbit splitting were 0.088 eV and 0.103 eV, respectively. With decreasing temperature, however, the PC intensities decreased, contrary to our expectation. From the log <i>J</i><sub>ph</sub> <i>vs.</i> 1/<i>T</i> plot, a dominant level of 37.8 meV was observed in the high-temperature region. Thereby, we suggest that this trapping center due to native defects and impurities limits the PC response with decreasing temperature.
참고문헌 (Reference)
1 U. P. Verma, B248 : 1682-, 2011
2 Y. P. Varshni, 34 : 149-, 1967
3 S. Charbonneau, 31 : 2326-, 1985
4 N. V. Joshi, 42 : 281-, 1981
5 J. L. Shay, 9 : 1719-, 1974
6 R. Bacewicz, 75 : 121-, 1979
7 J. C. Simmons, 7 : 3051-, 1974
8 T. Y. Park, 84 : 1567-, 1998
9 M. Quintero, 57 : 271-, 1996
10 K. J. Hong,
1 U. P. Verma, B248 : 1682-, 2011
2 Y. P. Varshni, 34 : 149-, 1967
3 S. Charbonneau, 31 : 2326-, 1985
4 N. V. Joshi, 42 : 281-, 1981
5 J. L. Shay, 9 : 1719-, 1974
6 R. Bacewicz, 75 : 121-, 1979
7 J. C. Simmons, 7 : 3051-, 1974
8 T. Y. Park, 84 : 1567-, 1998
9 M. Quintero, 57 : 271-, 1996
10 K. J. Hong,
11 S. H. You, 256 : 116-, 2003
12 C. C. Klick, 89 : 274-, 1953
13 J. L. Shay, "Ternary chalcopyrite semiconductors:growth, electronic properties, and applications" Pergamon 1975
14 R. A. Smitt, "Semiconductor" Cambridge University 72-, 1978
15 N. V. Joshi, "Photoconductivity: Art, Science and Technology" Dekker 1990
16 R. H. Bube, "Photoconductivity of Solids" Wiley 1969
17 K. L. Greenaway, "Optical Properties and Band Structure of Semiconductors" Pergamon 1968
18 O. Madelung, "Numerical Data and Functional Relationship in Science and Technology, Landolt-B¨ornstein, New Series" Springer 1985
Fiber-optic Hydrogen Sensor Based on Polarization-diversity Loop Interferometer
Growth and Spectral Analysis of Stacked Quantum Dots for Broadband Superluminescent Diodes
Entropy of a (1+1)-dimensional Charged Black Hole to All Orders in the Planck Length
Reliability of Using a Joint Density of States Reconstructed with a Histogram
학술지 이력
연월일 | 이력구분 | 이력상세 | 등재구분 |
---|---|---|---|
2023 | 평가예정 | 해외DB학술지평가 신청대상 (해외등재 학술지 평가) | |
2020-01-01 | 평가 | 등재학술지 유지 (해외등재 학술지 평가) | |
2011-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2009-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2007-01-01 | 평가 | SCI 등재 (등재유지) | |
2005-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2002-07-01 | 평가 | 등재학술지 선정 (등재후보2차) | |
2000-01-01 | 평가 | 등재후보학술지 선정 (신규평가) |
학술지 인용정보
기준연도 | WOS-KCI 통합IF(2년) | KCIF(2년) | KCIF(3년) |
---|---|---|---|
2016 | 0.47 | 0.15 | 0.31 |
KCIF(4년) | KCIF(5년) | 중심성지수(3년) | 즉시성지수 |
0.26 | 0.2 | 0.26 | 0.03 |