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1

Surface Effect on the Buckling of a Stretchable Electronic Structure

Zhang X., Ou Z., Yao X.

Przegląd Elektrotechniczny

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2012

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R. 88, nr 9b

137-140

EN

The structure of a stiff thin film on a compliant substrate has important applications in stretchable electronics. However, such structures are micro-nano-order of magnitude, where surface effects cannot be ignored. Gurtin-Murdoch theory is applied to model the thin film including surface effects. Through energy method, the size-dependent relations between the buckling features, material properties and geometric parameters are deduced. At last the influence of surface effects is illustrated by the case of silicon film and PDMS substrate.

PL

Badano strukturę cienkiej warstwy nałożonej na podłoże. Taka struktura może mieć rząd nanometrów kiedy efekt podłoża nie może być ignorowany. Zaproponowano model matematyczny struktury bazując na teorii Gurtin-Murdoch.

2

Tailoring electronic structure of polyazomethines thin films

Wieszka J., Hajduk B., Domański M., Chwastek M., Jurusik J., Jarząbek B., Bednarski H., Jarka P.

Journal of Achievements in Materials and Manufacturing Engineering

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2010

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Vol. 42, nr 1-2

180-187

EN

Purpose: The aim of this work is to show how electronic properties of polyazomethine thin films deposited by chemical vapor deposition method (CVD) can be tailored by manipulating technological parameters of pristine films preparation as well as modifying them while the as-prepared films put into iodine atmosphere. Design/methodology/approach: The recent achievements in the field of designing and preparation methods to be used while preparing polymer photovoltaic solar cells or optoelectronic devices. Findings: The method used allow for pure pristine polymer thin films to be prtepared without any unintentional doping taking place during prepoaration methods. This is a method based on polycondensation process, where polymer chain developing is running directly due to chemical reaction between molecules of bifunctional monomers. The method applied to prepare thin films of polyazomethines takes advantage of monomer transporting by mreans of neutral transport agent as pure argon is. Research limitations/implications: The main disadvantage of alternately conjugated polymers seems to be quite low mobility of charge carrier that is expected to be a consequence of their backbone being built up of sp2 hybridized carbon and nitrogen atoms. Varying technological conditions towards increasing reagents mass transport to the substrate is expected to give such polyazomethine thin films organization that phenylene rin stacking can result in special đ electron systems rather than linear ones as it is the case. Originality/value: Our results supply with original possibilities which can be useful in ooking for good polymer materials for optoelectronic and photovoltaic applications. These results have been gained on polyazomethine thin films but their being isoelectronic counterpart to widely used poly p-phenylene vinylene may be very convenient to develop high efficiency polymer solar cells.

3

Photoinduced electronic structure and nonlinear susceptibilities in Y-Ba-Cu-O ceramics

Kryza A., Kityk I. V.

Prace Naukowe. Chemia / Wyższa Szkoła Pedagogiczna w Częstochowie

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2001

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Vol. 5

181--188

4

Electronic criterion for the effectiveness of lithium-ion batteries.

Molenda J.

Inżynieria Materiałowa

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1998

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R. XIX, nr 4

1233-1237

EN

The paper presents the results of electrical and electrochemical measurements of intercalation compounds (LixCoO2, LixWO3). A close correlation has been shown between the electronic structure of transition metal compounds and reactivity in relation to lithium.