110 research outputs found
Modelling water vapor permeability through atomic layer deposition coated photovoltaic barrier defects
Transparent barrier films such as Al2O3 used for prevention of oxygen and/or water vapour permeation are the subject of increasing research interest when used for the encapsulation of flexible photovoltaic modules. However, the existence of micro-scale defects in the barrier surface topography has been shown to have the potential to facilitate water vapour ingress, thereby reducing cell efficiency and causing internal electrical shorts. Previous work has shown that small defects (†3 Όm lateral dimension) were less significant in determining water vapour ingress. In contrast, larger defects (℠3 Όm lateral dimension) seem to be more detrimental to the barrier functionality. Experimental results based on surface topography segmentation analysis and a model presented in this paper, will be used to test the hypothesis that the major contributing defects to water vapour transmission rate are small numbers of large defects. The model highlighted in this study has the potential to be used for gaining a better understanding of photovoltaic module efficiency and performance
Strategies for Drug Encapsulation and Controlled Delivery Based on Vapor-Phase Deposited Thin Films
Atomic-Level Structural and Electronic Properties of Hybrid InorganicâOrganic ZnO:Hydroquinone Superlattices Fabricated by ALD/MLD
Thrombospondin-1 expression in urothelial carcinoma: prognostic significance and association with p53 alterations, tumour angiogenesis and extracellular matrix components
Hidetoshi Hoshino. Industria tessile e commercio internazionale nella Firenze del tardo Medioevo Eds. Franco Franceschi and Sergio Tognetti. (Biblioteca Storica Toscana, Serie I, vol. 39) Florence: Leo S. Olschki Editore, 2001. xvi + 204 pp. L 42,000. ISBN: 88-222-4964-X.
Edwin Hunt. The Medieval Supercompanies: A Study of the Peruzzi Company of Florence. Cambridge: Cambridge University Press, 1994. 5 app. + 18 tab. + 4 fig. + 1 map + x + 291 pp. $59.95.
Richard K. Marshall, The Local Merchants of Prato: Small Entrepreneurs in the Late Medieval Economy (The Johns Hopkins University Studies in Historical and Political Science, 117.) Baltimore and London: Johns Hopkins University Press, 1999. xix + 191 pp. $42.50. ISBN: 0-8018-6057-1. - Sergio Tognetti, Il Banco Cambini: Affari e cercati di una compagnia mercantile-bancaria nella Firenze del XV secolo (Biblioteca Storica Toscana a cura della deputazione di storia patria per la Toscana, 37). Florence: Olschki, 1999. ix + 398 pp. IL 74,000. ISBN: 88-222-4777-9.
Luca MolĂ , Reinhold C. Mueller, and Claudio Zanier, eds. La seta in Italia dal Medioevo al Seicento: Dal baco al drappo. (Fondazione Giorgio Cini, Presente Storico, 11.) Venice: Marsilio Editore, 2000. xiv + 568 pp. index, append, illus. bibl. âŹ41.32. ISBN: 88-317-7442-5.
- âŠ