scholarly journals Integrating theory, synthesis, spectroscopy and device efficiency to design and characterize donor materials for organic photovoltaics: a case study including 12 donors

2015 ◽  
Vol 3 (18) ◽  
pp. 9777-9788 ◽  
Author(s):  
S. D. Oosterhout ◽  
N. Kopidakis ◽  
Z. R. Owczarczyk ◽  
W. A. Braunecker ◽  
R. E. Larsen ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Energy Levels ◽  
Device Fabrication ◽  
Charge Generation ◽  
Microwave Conductivity ◽  
Time Resolved ◽  
Device Efficiency

Calculations predict energy levels of polymers for OPV, and time-resolved microwave conductivity pre-screens for charge generation ability prior to device fabrication.

Straight, bent and twisted intramolecular charge separated states as seen by time-resolved microwave conductivity (TRMC)

1993 ◽  
Vol 65 (8) ◽  
pp. 1723-1728 ◽  
Author(s):  
J. M. Warman ◽  
S. A. Jonker ◽  
W. Schuddeboom ◽  
M. P. de Haas ◽  
M. N. Paddon-Row ◽  
...  
Keyword(s):  
Microwave Conductivity ◽  
Time Resolved

scholarly journals Time-resolved microwave conductivity. Part 1.—TiO2photoreactivity and size quantization

1994 ◽  
Vol 90 (21) ◽  
pp. 3315-3322 ◽  
Author(s):  
Scot T. Martin ◽  
Hartmut Herrmann ◽  
Wonyong Choi ◽  
Michael R. Hoffmann
Keyword(s):  
Size Quantization ◽  
Microwave Conductivity ◽  
Time Resolved

Charge migration in pulse-irradiated undoped C60 powder studied with the Time-Resolved Microwave conductivity technique

1997 ◽  
Vol 86 (1-3) ◽  
pp. 2355-2356 ◽  
Author(s):  
R.J.O.M. Hoffman ◽  
G.P. van der Laan ◽  
M.P. de Haas ◽  
K. Tanigaki
Keyword(s):  
Charge Migration ◽  
Microwave Conductivity ◽  
Time Resolved

Morphology effects on charge generation and recombination dynamics at ZnPc:C60 bulk hetero-junctions using time-resolved terahertz spectroscopy

2011 ◽  
Vol 99 (14) ◽  
pp. 143304 ◽  
Author(s):  
Andreas F. Bartelt ◽  
Christian Strothkämper ◽  
Wolfram Schindler ◽  
Konstantinos Fostiropoulos ◽  
Rainer Eichberger
Keyword(s):  
Terahertz Spectroscopy ◽  
Charge Generation ◽  
Time Resolved ◽  
Recombination Dynamics

CASE STUDY OF THE CONVERGENCY OF NONLINEAR PERTURBATION SERIES: MORSE–FESHBACH NONLINEAR SERIES

1999 ◽  
Vol 14 (13) ◽  
pp. 2103-2115 ◽  
Author(s):  
BISWANATH RATH
Keyword(s):  
New York ◽  
Energy Levels ◽  
Perturbation Series ◽  
Nonlinear Perturbation ◽  
Theoretical Physics ◽  
The Matrix ◽  
Diagonalization Method ◽  
Matrix Diagonalization ◽  
Divergent Behavior

We study the divergent behavior of the Morse–Feshbach nonlinear perturbation series (MFNS) [P. M. Morse and H. Feshbach, Methods of Theoretical Physics, Part II (McGraw-Hill, New York, 1953)] for producing convergent energy levels using the ground state of a quartic anharmonic oscillator (AHO) in the strong coupling limit. Numerical calculations have been done up to tenth order. Further comparison of the MFNS convergent result has been made with the matrix diagonalization method.

scholarly journals Thulium-Doped Silica Fibers with Enhanced Fluorescence Lifetime and Their Application in Ultrafast Fiber Lasers

Fibers ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 66 ◽  
Author(s):  
Jakub Cajzl ◽  
Pavel Peterka ◽  
Maciej Kowalczyk ◽  
Jan Tarka ◽  
Grzegorz Sobon ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Fluorescence Lifetime ◽  
Energy Levels ◽  
Local Environment ◽  
Alumina Nanoparticles ◽  
Fluorescence Lifetimes ◽  
Transfer Coefficients ◽  
Relaxation Energy ◽  
Time Resolved ◽  
Conventional Solution

In this work we report on the thulium-doped silica-based optical fibers with increased fluorescence lifetime of the 3F4 level thanks to the modification of the local environment of thulium ions by high content of alumina. The determination of the cross-relaxation energy-transfer coefficients from the measurements of the fluorescence lifetimes of the 3F4 and 3H4 energy levels of Tm3+ ions in the experimentally prepared optical fiber is provided as well. Preforms of optical fibers were prepared either by conventional solution-doping of Tm3+ and Al3+ ions or by dispersion-doping of Tm3+ ions with alumina nanoparticles. Optical fibers were characterized by means of Tm, Al, and Ge concentrations, refractive index profiles, optical spectral absorption and luminescence, and by time-resolved fluorescence spectroscopy. Highly aluminium-codoped thulium silicate optical fibers exhibited fluorescence lifetimes of over ~500 μs with maximum value of 756 μs, which means a fluorescence lifetime enhancement when compared to the thulium-doped fibers reported elsewhere. We show an application of the thulium-doped fiber in a compact all-fiber ring laser that is passively mode-locked by using graphene-based saturable absorber. The output pulsewidth and repetition rate were 905 fs and 32.67 MHz, respectively.

The role of data source selection in chemical hazard assessment: A case study on organic photovoltaics

2019 ◽  
Vol 365 ◽  
pp. 227-236 ◽  
Author(s):  
Haoyang He ◽  
Yadira Gutierrez ◽  
Thomas M. Young ◽  
Julie M. Schoenung
Keyword(s):  
Hazard Assessment ◽  
Organic Photovoltaics ◽  
Source Selection ◽  
Chemical Hazard ◽  
Data Source
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