Photothermal patterning

Jones, C.D. Lyon, L.A. Photothermal patterning of microgel/gold nanoparticle composite colloidal crystals. J. Am. Chem. Soc. 2003, 125, 460-465. 

Afzali, A., Dimitrakopoulos, C.D. and Graham, T.O., Photosensitive pentacene precursor Synthesis, photothermal patterning, and apphcation in thin-fihn transistors, Adv. Mater, 15, 2066, 2003. 

Photoelectron spectroscopy, 19-29, 21-1-21-9 Photoinduced absorption, 5-9, 5-11, 5-13-5-19 Photolithography, 8-62-8-66 Photoluminescence quantum yield, 5-10 Photothermal effect, 7-5, 7-30-7-36, 7-40 Photothermal patterning, 7-35 Photovoltaic cell, 18-4 Photovoltaic cells, diodes, 19-1-19-2 Photovoltaic devices (solar cells) polymer blends, 4-11-4-13 fullerenes, 4-12... 

C. D. Jones, M. J. Serpe, L. Schroeder, and L. A. Lyon, "Microlens formation in microgel/gold colloid composite materials via photothermal patterning," Journal of the American Chemical Society, vol. 125, pp. 5292-5293, May 2003. 

The volatile products of thermal degradation of polypropylene (PP) under vacuum in the temperature range 300-360°C comprise a complex mixture of saturated and unsaturated hydrocarbons. Under u.v. radiation at these temperatures (photothermal degradation), the general pattern of products is similar but the rate is Increased, ehtylene appears as a minor product and the relative amount of methane is very much greater, especially as the temperature Is decreased below 300°C. Energies of activation of the thermal, photothermal and photoreactions are 50.1, 33.9 and 11.7 k cal mole" respectively. 

Mass spectra of volatile products from photothermal and thermal degradations at 354°C and of photothermal degradation at 200 and 250 C are illustrated in figure 1. They are all typical of a mixture of hydrocarbons with the main peaks separated by 14 units (CH2). They are generally similar, except that as the degradation temperature is decreased, the lines at mass numbers 15 and 16 become relatively much more intense. These two lines, as well as forming part of the breakdown pattern of higher hydrocarbons, are characteristic of methane. Thus it may be concluded that the relative proportions of methane in the volatile products... 

Polypropylene. In the thermal and photothermal degradations of PP as prepared as well as In the thermal degradation of the pre-irradiated polymer, the general patterns of volatile products are similar and are qualitatively accounted for In terms of the mechanism of Tsuchlya and Suml ( ), which proposed that the complex mixture of saturated and unsaturated hydrocarbons Is formed in a free radical process in which Inter and Intramolecular transfer play a predominating role. In the photothermal reaction, however, in addition to those products, a very much higher relative concentration of methane and an appreciable amount of... 

In this optical technique based on photothermal effects, pump light is shone on a transmission grating in front of a fluid channel and the inside liquid is heated with a pattern of the grating due to the Talbot effect [11]. Another probe light is... 

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