Characterization of n-CdS/Polysulfide Photoelectrochemical Cells via Photothermal Deflection and Photoaction Spectroscopies

1988 ◽  
pp. 41-43
Author(s):  
R. E. Wagner ◽  
A. Mandelis
Keyword(s):  
Photoelectrochemical Cells ◽  
Photothermal Deflection

Characterization of Micron-Sized, Optical Coating Defects by Photothermal Deflection Microscopy

2008 ◽  
pp. 385-385-8
Author(s):  
JA Abate ◽  
AW Schmid ◽  
MJ Guardalben ◽  
DJ Smith ◽  
SD Jacobs
Keyword(s):  
Optical Coating ◽  
Photothermal Deflection

Characterization of the photothermal deflection densitometer

1985 ◽  
Vol 57 (7) ◽  
pp. 1359-1362 ◽  
Author(s):  
Konan. Peck ◽  
Fotios K. Fotiou ◽  
Michael D. Morris
Keyword(s):  
Photothermal Deflection

Thermal diffusivity maps: Case studies in ceramics

1997 ◽  
Vol 12 (9) ◽  
pp. 2381-2387 ◽  
Author(s):  
Lanhua Wei ◽  
Grady S. White
Keyword(s):  
Experimental Data ◽  
Thermal Diffusivity ◽  
Case Studies ◽  
Composite Structures ◽  
Contact Damage ◽  
Fiber Reinforced Composite ◽  
Microcrack Density ◽  
Reinforced Composite ◽  
Photothermal Deflection

A new methodology for mapping thermal diffusivity using a photothermal deflection method is introduced. Two case studies are made: fiber-reinforced composite structures and contact damage zones in alumina. In the former, characterization of thermal microstructural features is demonstrated; in the latter, microcrack density is quantified. Experimental data are analyzed and compared with literature results. Advantages and limitations of the technique are discussed.

Thermophysical characterization of artificially aged papers by means of the photothermal deflection technique

1999 ◽  
Vol 85 (5) ◽  
pp. 2881-2887 ◽  
Author(s):  
M. Bertolotti ◽  
S. Ligia ◽  
G. Liakhou ◽  
R. Li Voti ◽  
S. Paoloni ◽  
...  
Keyword(s):  
Photothermal Deflection ◽  
Thermophysical Characterization

Photothermal Beam Deflection and Photoaction Spectroscopic Study of CdS Photoelectrodes in Polysulfide Electrolyte

1989 ◽  
Vol 43 (2) ◽  
pp. 209-219 ◽  
Author(s):  
Robert E. Wagner ◽  
Andreas Mandelis
Keyword(s):  
Short Circuit ◽  
Surface Condition ◽  
Corrosion Damage ◽  
Open Circuit ◽  
Photoelectrochemical Cells ◽  
Beam Deflection ◽  
Counter Electrodes ◽  
Photothermal Deflection ◽  
Species Gradient ◽  
Modulated Light

A number of experimental photothermal deflection, ac photovoltage, and ac photocurrent spectra for CdS photoelectrochemical cells are presented. The spectra were obtained under various conditions, with the use of modulated light: open circuit and short circuit, and with a dc bias applied across the working and counter electrodes. The measurement of both the photothermal deflection and the photoaction signals allows one to monitor two energy conversion channels, namely optical-to-thermal, and optical-to-electrical. The photothermal deflection technique was found to provide useful information regarding the surface condition of the electrodes, with respect to polishing or corrosion damage. Finally, the effect of a current-induced species gradient at the working electrode/electrolyte interface upon the photothermal deflection signal is also examined.

scholarly journals Characterization Of Thermally Stable Dye-Doped Polyimide Based Electrooptic Materials

1993 ◽  
Vol 328 ◽  
Author(s):  
Michael B. Meinhardt ◽  
Paul A. Cahill ◽  
Carl H. Seager ◽  
Allyson J. Beuhler ◽  
David A. Wargowski
Keyword(s):  
Dye Degradation ◽  
Curing Process ◽  
Polyimide Films ◽  
Scanning Calorimetry ◽  
Thermal Stabilities ◽  
Photothermal Deflection Spectroscopy ◽  
Dye Aggregation ◽  
Donor Acceptor ◽  
Photothermal Deflection

ABSTRACTPreparation and characterization of novel dye-doped polyimide films for electrooptics is described. Thermal stabilities of donor-acceptor 2,5-diaryl oxazoles were evaluated by differential scanning calorimetry. Absorptive losses in thin films of Ultradel 9000D® doped with donor-acceptor oxazoles were measured by photothermal deflection spectroscopy. Absorptive losses at high doping levels may be explainable by dye-dye aggregation or dye degradation during the curing process. Lower doping levels, however, show losses of ≤ 3.0 dB/cm at 830 nm and ≤ 2.4 dB/cm at 1320 nm.

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