%0 Journal Article %1 Stuckless1998 %A Stuckless, J. %A Frei, N.A. %A Campbell, C.T. %D 1998 %J Rev. Sci. Instrum. %K COLLISIONS; COPPER; ETHYLENE; FILMS; GOLD; MICROCALORIMETRY; OXYGEN; PARTICLES PROBABILITIES; STICKING SURFACE; %N 6 %P 2427-2438 %R 10.1063/1.1148971 %T A novel single-crystal adsorption calorimeter and additions for determining metal adsorption and adhesion energies %U http://tinyurl.sfx.mpg.de/pwo6 %V 69 %X A new microcalorimeter for measuring heats of adsorption on clean single-crystal surfaces is described, and its operational characteristics are presented. The principle is similar to that pioneered by David King's group: A pulse of gas from a molecular beam adsorbs on an ultrathin single crystal's surface, causing a measurable transient heat input and temperature rise. Our novel heat detector is a 9 mu m thick pyroelectric polymer ribbon, which is mechanically driven to make a gentle mechanical/thermal contact to the back of the single-crystal sample during measurements. Advantages include use of thicker samples (1 mu m), sample preparation at very high temperatures, and potential measurements at cryogenic temperatures. A novel chopped molecular beam of metal vapor and a method of correcting for absorbed radiation from the hot effusion cell are also described. This system is applied to study the heats of adsorption of metals on clean, well-defined and single-crystalline surfaces as a detailed function of coverage, from which metal/substrate adhesion energies can also be extracted. We obtain pulse-to-pulse standard deviations of <2% in the heat of adsorption for pulses containing <0.03 ML of Cu and Pb, and absolute accuracy to within a few percent.

@article{Stuckless1998, abstract = {A new microcalorimeter for measuring heats of adsorption on clean single-crystal surfaces is described, and its operational characteristics are presented. The principle is similar to that pioneered by David King's group: A pulse of gas from a molecular beam adsorbs on an ultrathin single crystal's surface, causing a measurable transient heat input and temperature rise. Our novel heat detector is a 9 mu m thick pyroelectric polymer ribbon, which is mechanically driven to make a gentle mechanical/thermal contact to the back of the single-crystal sample during measurements. Advantages include use of thicker samples (1 mu m), sample preparation at very high temperatures, and potential measurements at cryogenic temperatures. A novel chopped molecular beam of metal vapor and a method of correcting for absorbed radiation from the hot effusion cell are also described. This system is applied to study the heats of adsorption of metals on clean, well-defined and single-crystalline surfaces as a detailed function of coverage, from which metal/substrate adhesion energies can also be extracted. We obtain pulse-to-pulse standard deviations of <2% in the heat of adsorption for pulses containing <0.03 ML of Cu and Pb, and absolute accuracy to within a few percent.}, added-at = {2009-10-30T10:04:05.000+0100}, author = {Stuckless, J. and Frei, N.A. and Campbell, C.T.}, biburl = {https://www.bibsonomy.org/bibtex/2b09cc4b2c7328b69eefa6382e037440a/jfischer}, doi = {10.1063/1.1148971}, groups = {public}, interhash = {41eaaaa79ba52d19b46d11dd6f230ae5}, intrahash = {b09cc4b2c7328b69eefa6382e037440a}, issn = {0034-6748}, journal = {Rev. Sci. Instrum.}, keywords = {COLLISIONS; COPPER; ETHYLENE; FILMS; GOLD; MICROCALORIMETRY; OXYGEN; PARTICLES PROBABILITIES; STICKING SURFACE;}, number = 6, pages = {2427-2438}, timestamp = {2009-10-30T10:04:20.000+0100}, title = {A novel single-crystal adsorption calorimeter and additions for determining metal adsorption and adhesion energies}, url = {http://tinyurl.sfx.mpg.de/pwo6}, volume = 69, year = 1998 }