Zobrazeno 1 - 10
of 44
pro vyhledávání: '"A. Botcharev"'
Publikováno v:
MRS Internet Journal of Nitride Semiconductor Research. 4:565-569
We report systematic characterizations of flicker noise in GaN based MODFETs. Flicker noise was measured across the channel of the devices from room temperature to 130 K. The voltage noise power spectra, SV(f) were found to be proportional to 1/fγ,
Publikováno v:
Physical Review B. 56:9539-9544
Publikováno v:
Physical Review B. 53:9838-9846
Transient subpicosecond Raman spectroscopy has been used to study electron velocity overshoot as well as nonequilibrium phonons in a GaAs-based p-i-n nanostructure under the application of high electric fields. Both electron distribution functions an
Autor:
Kong-Thon Tsen, Arnel Salvador, E. D. Grann, Otto F. Sankey, Hadis Morkoç, S. E. Günçer, David K. Ferry, S. J. Sheih, A. Botcharev
Publikováno v:
Physical Review B. 51:1631-1641
High-field electron transport in GaAs-based p-i-n nanostructure semiconductors has been studied by transient picosecond Raman spectroscopy at T=80 K. Both electron-distribution functions and electron-drift velocities have been directly measured as a
Autor:
Selim E. Günçer, H. Morkof, E. D. Grann, S. J. Sheih, David K. Ferry, A. Botcharev, Kong-Thon Tsen, A. Salvador
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 1:1093-1099
Electron transport in an Al/sub x/Ga/sub 1-x/As (x=0.3) based p-i-n nanostructure semiconductor under the application of an electric field has been studied at T=80 K by picosecond transient Raman spectroscopy. Single-particle excitations associated w
Publikováno v:
Journal of Applied Physics. 81:406-408
We have used electric-field-induced Raman scattering to quantitatively assess the effects of carrier screening on the average electric fields in a GaAs-based p–i–n nanostructure semiconductor under subpicosecond laser photoexcitation. Our experim
Publikováno v:
Journal of Applied Physics; 1/1/1997, Vol. 81 Issue 1, p406, 3p, 3 Graphs
Autor:
Hadis Morkoç, Kong-Thon Tsen, A. Botcharev, David K. Ferry, Arnel Salvador, E. D. Grann, Otto F. Sankey
Publikováno v:
Applied Physics Letters. 67:1760-1762
We report direct measurements of nonequilibrium electron distributions and electron drift velocities in a GaAs‐based p‐i‐n nanostructure semiconductor by using transient subpicosecond Raman spectroscopy. Experimental conditions are such that th
Autor:
S. J. Sheih, Selim E. Günçer, Chih Ta Chia, A. Botcharev, Kong-Thon Tsen, E. D. Grann, Hadis Morkoç, Ravi Droopad, Arnel Salvador, David K. Ferry, Otto F. Sankey, George N. Maracas
Publikováno v:
Applied Physics Letters. 64:1230-1232
Electron transport in GaAs‐based p‐i‐n nanostructure semiconductors under the application of an electric field has been studied by transient Raman spectroscopy on a picosecond time scale and at T≂80 K. For an injected carrier density of n≂2
Publikováno v:
Proceedings 1998 Hong Kong Electron Devices Meeting (Cat. No.98TH8368).
Flicker noise in MBE grown III-V nitride MODFETs was characterized from room temperature to 130 K. The voltage noise power spectra, S/sub V/(f), were found to be proportional to 1/f/sup /spl gamma// where /spl gamma/ depends on the device temperature