scholarly journals Persistent photoconductivity and optical quenching of photocurrent in GaN layers under dual excitation

2003 ◽  
Vol 94 (6) ◽  
pp. 3875-3882 ◽  
Author(s):  
V. V. Ursaki ◽  
I. M. Tiginyanu ◽  
P. C. Ricci ◽  
A. Anedda ◽  
S. Hubbard ◽  
...  
Keyword(s):  
Persistent Photoconductivity ◽  
Optical Quenching

The impact of nanoperforation on persistent photoconductivity and optical quenching effects in suspended GaN nanomembranes

2013 ◽  
Vol 103 (24) ◽  
pp. 243113 ◽  
Author(s):  
Olesea Volciuc ◽  
Tudor Braniste ◽  
Ion Tiginyanu ◽  
Marion A. Stevens-Kalceff ◽  
Jakob Ebeling ◽  
...  
Keyword(s):  
Persistent Photoconductivity ◽  
Optical Quenching ◽  
The Impact

Photoquenching Of Persistent Photoconductivity In N-Type GaN

1997 ◽  
Vol 482 ◽  
Author(s):  
Michèle T. Hirsch ◽  
O. Seiferta ◽  
O. Kirfel ◽  
J. Parisia ◽  
J. A. Wolk ◽  
...  
Keyword(s):  
Wavelength Range ◽  
Cross Sections ◽  
Spectral Dependence ◽  
Room Temperature ◽  
Preliminary Investigation ◽  
Low Energy ◽  
Persistent Photoconductivity ◽  
Quenching Effect ◽  
Optical Quenching ◽  
Thermally Activated

AbstractWe report on the observation of optical quenching of persistent photoconductivity (PPC) in unintentionally doped n-type GaN films. The PPC is induced by subbandgap illumination between room temperature and 77K. The corresponding decay, which.is thermally activated, is substantially increased upon low energy illumination, e.g. illumination by wavelengths between 1O50nm and 700nm. We measure the saturation conductivity under simultaneous illumination with excitation and quenching light and find that some wavelengths can induce both excitation and quenching of photoconductivity. Additionally, we present a preliminary investigation of the spectral dependence of the quenching effect. A simulation indicates only a weak spectral dependence of the quenching cross-sections in the wavelength range from 470nm–1050nm.

Persistent photoconductivity in uniforndy and selectively silicon doped AlAs / GaAs short period superlattices

1991 ◽  
Vol 1 (4) ◽  
pp. 503-510 ◽  
Author(s):  
P. Jeanjean ◽  
J. Sicart ◽  
J. L. Robert ◽  
F. Mollot ◽  
R. Planel
Keyword(s):  
Persistent Photoconductivity ◽  
Short Period ◽  
Short Period Superlattices ◽  
Silicon Doped

Persistent Photoconductivity And Thermal Recovery Kinetics Of Low Energy Ar + Bombarded GaAs

1991 ◽  
Vol 223 ◽  
Author(s):  
A. Vaseashta ◽  
L. C. Burton
Keyword(s):  
Deep Level Transient Spectroscopy ◽  
Deep Level ◽  
Thermal Recovery ◽  
Low Energy ◽  
Persistent Photoconductivity ◽  
Transport Parameters ◽  
Excellent Correlation ◽  
Proposed Model ◽  
Transient Spectroscopy ◽  
Kinetics Of

ABSTRACTKinetics of persistent photoconductivity, photoquenching, and thermal and optical recovery observed in low energy Ar+ bombarded on (100) GaAs surfaces have been investigated. Rate and transport equations for these processes were derived and simulated employing transport parameters, trap locations and densities determined by deep level transient spectroscopy. Excellent correlation was obtained between the results of preliminary simulation and the experimentally observed values. The exponential decay of persistent photoconductivity response curve was determined to be due to metastable electron traps with longer lifetime and is consistent with an earlier proposed model.

GaOx@GaN Nanowire Arrays on Flexible Graphite Paper with Tunable Persistent Photoconductivity

2021 ◽  
Vol 13 (35) ◽  
pp. 41916-41925
Author(s):  
Yu-Hang Ji ◽  
Qin Gao ◽  
An-Ping Huang ◽  
Meng-Qi Yang ◽  
Yan-Qi Liu ◽  
...  
Keyword(s):  
Nanowire Arrays ◽  
Persistent Photoconductivity ◽  
Gan Nanowire ◽  
Flexible Graphite

Persistent photoconductivity in Hf–In–Zn–O thin film transistors

2010 ◽  
Vol 97 (14) ◽  
pp. 143510 ◽  
Author(s):  
Khashayar Ghaffarzadeh ◽  
Arokia Nathan ◽  
John Robertson ◽  
Sangwook Kim ◽  
Sanghun Jeon ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Persistent Photoconductivity

Charge Transport and Observation of Persistent Photoconductivity in Tl6SeI4 Single Crystals

2017 ◽  
Vol 8 (7) ◽  
pp. 1538-1544 ◽  
Author(s):  
Sanjib Das ◽  
John A. Peters ◽  
Wenwen Lin ◽  
Svetlana S. Kostina ◽  
Pice Chen ◽  
...  
Keyword(s):  
Charge Transport ◽  
Single Crystals ◽  
Persistent Photoconductivity

Persistent photoconductivity spectrum of GdBa2Cu3O6.3 in the IR to UV region

1996 ◽  
Vol 46 (S2) ◽  
pp. 1123-1124 ◽  
Author(s):  
T. Endo ◽  
J. Santamaria ◽  
A. Hoffmann ◽  
Ivan K. Schuller
Keyword(s):  
Photoconductivity Spectrum ◽  
Persistent Photoconductivity

Persistent photoconductivity in highly porous ZnO films

2007 ◽  
Vol 101 (1) ◽  
pp. 013709 ◽  
Author(s):  
Jens Reemts ◽  
Achim Kittel
Keyword(s):  
Zno Films ◽  
Persistent Photoconductivity ◽  
Highly Porous
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