Enhancement of persistent photoconductivity by uv excitation in GdBa2Cu3O6.3

1996 ◽  
Vol 54 (6) ◽  
pp. R3750-R3752 ◽  
Author(s):  
T. Endo ◽  
A. Hoffmann ◽  
J. Santamaria ◽  
Ivan K. Schuller
Keyword(s):  
Persistent Photoconductivity ◽  
Uv Excitation

Persistent photoconductivity in YBa2Cu3Ox by visible and UV excitation below Tc

2004 ◽  
Vol 405 (2) ◽  
pp. 173-178 ◽  
Author(s):  
W. Markowitsch ◽  
A. Altenburger ◽  
W. Lang ◽  
M. Peruzzi ◽  
J.D. Pedarnig ◽  
...  
Keyword(s):  
Persistent Photoconductivity ◽  
Uv Excitation

scholarly journals Persistent Photoconductivity in ZnO Nanowires in Different Atmospheres

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Davide Cammi ◽  
Carsten Ronning
Keyword(s):  
Conduction Band ◽  
Inert Gas ◽  
Persistent Photoconductivity ◽  
Zno Nanowire ◽  
Reduced Pressure ◽  
Band Bending ◽  
Proposed Model ◽  
Photo Conductivity ◽  
Nanowire Device ◽  
Uv Excitation

We investigated the photoconductivity of single ZnO nanowire device as a function of the surrounding atmosphere, considering the comparison between reduced pressure, inert gas environments, and air. We show that after UV excitation the photocurrent persists for hours, in particular in vacuum, nitrogen, and argon. In the presence of oxygen, the photodecay rate is initially fast but then becomes considerably slower, resulting in a long persisting photo-conductivity tail. Our proposed model explains the persistence of the photoconductivity (PPC) in terms of band bending at the surface of the nanowires, which is related to the trapping of electrons from the conduction band.

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

scholarly journals UV photofragmentation dynamics of acetaldehyde cations prepared by single-photon VUV ionization

2019 ◽  
Vol 21 (26) ◽  
pp. 14214-14225 ◽  
Author(s):  
Kara M. Kapnas ◽  
Laura M. McCaslin ◽  
Craig Murray
Keyword(s):  
Single Photon ◽  
Uv Excitation

UV excitation of cold acetaldehyde cations prepared by single-photon VUV ionization results in remarkably rich photochemistry.

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

Efficient sensitization of Mn2+ emission by Eu2+ in Ca12Al14O33Cl2 host under UV excitation

RSC Advances ◽  
2013 ◽  
Vol 3 (36) ◽  
pp. 16034 ◽  
Author(s):  
Wenzhen Lv ◽  
Wei Lü ◽  
Ning Guo ◽  
Yongchao Jia ◽  
Qi Zhao ◽  
...  
Keyword(s):  
Uv Excitation

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
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