Photoconductive response of PbSnTe(In) in the terahertz spectral range
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KHOKHLOV, Dmitri, GALEEVA, Aleksandra, DOLZHENKO, Dmitriy, RYABOVA, Ludmila, NIKORICH, Andrey V., GANICHEV, Sergey D., DANILOV, Sergey, BELIKOV, Vasylyj. Photoconductive response of PbSnTe(In) in the terahertz spectral range. In: Proceedings of SPIE - The International Society for Optical Engineering, Ed. 17, 5 august 2009, San Diego, California. Bellingham, Washington: SPIE, 2009, Ediţia 17, Vol.7453, pp. 1-7. ISBN 9780819477439. ISSN 0277786X. DOI: https://doi.org/10.1117/12.827454
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Proceedings of SPIE - The International Society for Optical Engineering
Ediţia 17, Vol.7453, 2009
Conferința " Nanotechnology"
17, San Diego, California, Statele Unite ale Americii, 5 august 2009

Photoconductive response of PbSnTe(In) in the terahertz spectral range

DOI:https://doi.org/10.1117/12.827454

Pag. 1-7

Khokhlov Dmitri1, Galeeva Aleksandra1, Dolzhenko Dmitriy1, Ryabova Ludmila1, Nikorich Andrey V.2, Ganichev Sergey D.3, Danilov Sergey3, Belikov Vasylyj34
 
1 Lomonosov Moscow State University,
2 Institute of Applied Physics, Academy of Sciences of Moldova,
3 University of Regensburg,
4 Ioffe Physical-Technical Institute, RAS
 
 
Disponibil în IBN: 30 noiembrie 2023


Rezumat

We have analyzed photoconductivity in PbSnTe(In) under the action of ∼100 ns long terahertz laser pulses with the wavelength 90 - 500 μm in the temperature range 4.2-300 K. Strong photoresponse has been observed at all wavelengths used. Positive persistent photoconductivity is observed at T < 10 K, whereas negative non-persistent photoresponse prevails at higher temperatures T ∼?25 K. Specific features of photoconductivity are discussed.

Cuvinte-cheie
doping, Narrow gap semiconductors, photoconductivity, Terahertz