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Abou-Ras D Marsen B Rissom T Frost F Schulz H Bauer F Efimova V Hoffmann V Eicke A 《Micron (Oxford, England : 1993)》2012,43(2-3):470-474
When producing slices from Cu(In,Ga)(S,Se)(2) thin films for solar cells by use of a focused ion beam (FIB), agglomerates form on the Cu(In,Ga)(S,Se)(2) surfaces, which deteriorate substantially the imaging and analysis in scanning electron microscopy. Similar problems are also experienced when depth-profiling Cu(In,Ga)(S,Se)(2) thin films by means of glow-discharge or secondary ion mass spectrometry. The present work shows that the agglomerates are composed of (mainly) Cu, and that their formation may be impeded considerably by either cooling of the sample or by use of reactive gases during the ion-beam sputtering. The introduction of XeF(2) during FIB slicing resulted in excellent images, in which the microstructures of most layers in the Cu(In,Ga)(S,Se)(2) thin film stack are visible, including the microstructure of the 20 nm thin MoSe(2) layer. Acquisition of high-quality two-dimensional and also three-dimensional electron backscatter diffraction data was possible. The present work gives a basis for enhanced SEM imaging and analysis not only in the case of Cu(In,Ga)(S,Se)(2) thin films but also when dealing with further material systems exhibiting similar formations of agglomerates. 相似文献
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85.
H. -F. Eicke 《Colloid and polymer science》1979,257(7):783-784
Ohne Zusammenfassung 相似文献
86.
The mass spectrum of N,N-dimethyl-N′-phenyl-formamidine (I) contains a large peak due to [M ? H]+-ions. As is shown by deuterium labelling, one of the ortho hydrogen atoms of the phenyl group is lost. The same result has been observed for the corresponding fragmentation of thioformanilide (V). This can be explained by the formation of benzimidazolium-ions (a). The effect of substituents at the phenyl group on the intensities and AP of these ions and on the IP of the molecular ions has been investigated. A mechanism of the cyclization reaction is proposed. 相似文献
87.
Hans-Friedrich Walter 《Mathematische Annalen》1970,189(3):211-221
Ohne Zusammenfassung 相似文献
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Peter B. Kraikivskii Hans-Friedrich Klein Reinhard Meusinger Mikhail Pashchanka 《Journal of organometallic chemistry》2009,694(24):3912-3383
Interaction of Ni(allyl)2 and bidentate nitrogen-containing ligands (phenanthroline-1,10; bis(2,6-diisopropylphenyl)diazabutadiene) has been studied. It has been shown that coordination of diimine ligands proceeds with transfer of an allylnickel group to the diimine frame and formation of a covalent Ni-N bond giving rise to imine(amide)Ni(II) complexes. In the case of phenanthroline dearomatization of one heteroaromatic ring takes place. The low-spin imine(amide)allyl complexes (allyl)Ni(C15H15N2) (1) and (allyl)Ni(C29H42N2) (3) have been isolated as crystals and characterized by solution spectroscopy. Combining two molar equivalents of phenanthroline-1,10 with Ni(allyl)2 results in the transfer of both allyl groups and formation of the high-spin imine(amide)Ni(II) complex Ni(C15H15N2)2 (2). 相似文献
90.