Maurice Maria Johannes Simenon

Bio: Maurice Maria Johannes Simenon is an academic researcher from Philips. The author has contributed to research in topics: Conductive polymer & Layer (electronics). The author has an hindex of 7, co-authored 9 publications receiving 1531 citations.

Method of manufacturing a pattern of an electrically conductive polymer on a substrate surface and method of metallizing such a pattern

Abstract: A solution of monomers, oligomers or polymers and a suitable oxidation agent can be stable if the solution also comprises a base. By spin coating this solution onto a substrate, a layer can be formed which, after patterned irradiation, yields a pattern of a doped conductive polymer which is formed in situ, the exposed and unexposed areas exhibiting a large difference in conductivity. A description is given of, inter alia, the patterned irradiation of a layer of 3,4-ethylenedioxythiophene. If desired, the conductive polymer pattern can subsequently be metallized in an electroplating bath. The method provides, inter alia, a simple process of manufacturing metal patterns on insulating substrates, such as printed circuit boards.

Laminated structure of a metal layer on a conductive polymer layer and method of manufacturing such a structure

Abstract: A laminated structure (1) comprising a substrate (3) and a polymer layer (5) is provided The polymer layer consists of conductive areas (7) having a sheet resistance of maximally 1000 Ω/sqaure The adjacent parts of the polymer layer are substantially non-conductive and have a sheet resistance which is a factor of 106 higher An electrodeposited metal layer (9), for example of copper, is present on the conductive areas (7) A simple method of photochemically generating the conductive pattern (7) which can be reinforced in an aqueous metal-salt solution by electrodeposition of a metal layer (9) is also provided and most preferably the conductive pattern is inter alia, the patterned exposure of a layer of 3,4-ethylene dioxythiophene or polyaniline The method can very suitably be used for the manufacture of metal patterns on insulating substrates, such as printed circuit boards

Method of manufactoring a laminated structure of a metal layer on a conductive polymer layer

Abstract: of EP0615257A description is given of a laminated structure (1) comprising a substrate (3) and a polymer layer (5). The polymer layer consists of conductive areas (7) having a sheet resistance of maximally 1000 OMEGA /sqaure. The adjacent parts of the polymer layer are substantially non-conductive and have a sheet resistance which is a factor of 10 higher. An electrodeposited metal layer (9), for example of copper, is present on the conductive areas (7). A description is also given of a simple method of photochemically generating the conductive pattern (7) which can be reinforced in an aqueous metal-salt solution by electrodeposition of a metal layer (9). A description is given of, inter alia, the patterned exposure of a layer of 3,4-ethylene dioxythiophene or polyaniline. The method can very suitably be used for the manufacture of metal patterns on insulating substrates, such as printed circuit boards.

Organic Thin Film Transistors for Large Area Electronics

Abstract: Organic thin-film transistors (OTFTs) have lived to see great improvements in recent years. This review presents new insight into conduction mechanisms and performance characteristics, as well as opportunities for modeling properties of OTFTs. The shifted focus in research from novel chemical structures to fabrication technologies that optimize morphology and structural order is underscored by chapters on vacuum-deposited and solution-processed organic semiconducting films. Finally, progress in the growing field of the n-type OTFTs is discussed in ample detail. The Figure, showing a pentacene film edge on SiO2, illustrates the morphology issue.

Semiconducting π-conjugated systems in field-effect transistors: a material odyssey of organic electronics.

Abstract: Since the discovery of highly conducting polyacetylene by Shirakawa, MacDiarmid, and Heeger in 1977, π-conjugated systems have attracted much attention as futuristic materials for the development and production of the next generation of electronics, that is, organic electronics. Conceptually, organic electronics are quite different from conventional inorganic solid state electronics because the structural versatility of organic semiconductors allows for the incorporation of functionality by molecular design. This versatility leads to a new era in the design of electronic devices. To date, the great number of π-conjugated semiconducting materials that have either been discovered or synthesized generate an exciting library of π-conjugated systems for use in organic electronics. 11 However, some key challenges for further advancement remain: the low mobility and stability of organic semiconductors, the lack of knowledge regarding structure property relationships for understanding the fundamental chemical aspects behind the structural design, and realization of desired properties. Organic field-effect transistors (OFETs) are a kind of device consisting of an organic semiconducting layer, a gate insulator layer, and three terminals (drain, source, and gate electrodes). OFETs are not only essential building blocks for the next generation of cheap and flexible organic circuits, but they also provide an important insight into the charge transport of πconjugated systems. Therefore, they act as strong tools for the exploration of the structure property relationships of πconjugated systems, such as parameters of field-effect mobility (μ, the drift velocity of carriers under unit electric field), current on/off ratio (the ratio of the maximum on-state current to the minimum off-state current), and threshold voltage (the minimum gate voltage that is required to turn on the transistor). 17 Since the discovery of OFETs in the 1980s, they have attracted much attention. Research onOFETs includes the discovery, design, and synthesis of π-conjugated systems for OFETs, device optimization, development of applications in radio frequency identification (RFID) tags, flexible displays, electronic papers, sensors, and so forth. It is beyond the scope of this review to cover all aspects of π-conjugated systems; hence, our focus will be on the performance analysis of π-conjugated systems in OFETs. This should make it possible to extract information regarding the fundamental merit of semiconducting π-conjugated materials and capture what is needed for newmaterials and what is the synthesis orientation of newπ-conjugated systems. In fact, for a new science with many practical applications, the field of organic electronics is progressing extremely rapidly. For example, using “organic field effect transistor” or “organic field effect transistors” as the query keywords to search the Web of Science citation database, it is possible to show the distribution of papers over recent years as shown in Figure 1A. It is very clear

π-Conjugated Polymers for Organic Electronics and Photovoltaic Cell Applications†

Abstract: The optoelectronic properties of polymeric semiconductor materials can be utilized for the fabrication of organic electronic and photonic devices. When key structural requirements are met, these materials exhibit unique properties such as solution processability, large charge transporting capabilities, and/or broad optical absorption. In this review recent developments in the area of π-conjugated polymeric semiconductors for organic thin-film (or field-effect) transistors (OTFTs or OFETs) and bulk-heterojunction photovoltaic (or solar) cell (BHJ-OPV or OSC) applications are summarized and analyzed.

Liquid-crystalline semiconducting polymers with high charge-carrier mobility.

Abstract: Organic semiconductors that can be fabricated by simple processing techniques and possess excellent electrical performance, are key requirements in the progress of organic electronics. Both high semiconductor charge-carrier mobility, optimized through understanding and control of the semiconductor microstructure, and stability of the semiconductor to ambient electrochemical oxidative processes are required. We report on new semiconducting liquid-crystalline thieno[3,2-b ]thiophene polymers, the enhancement in charge-carrier mobility achieved through highly organized morphology from processing in the mesophase, and the effects of exposure to both ambient and low-humidity air on the performance of transistor devices. Relatively large crystalline domain sizes on the length scale of lithographically accessible channel lengths (∼200 nm) were exhibited in thin films, thus offering the potential for fabrication of single-crystal polymer transistors. Good transistor stability under static storage and operation in a low-humidity air environment was demonstrated, with charge-carrier field-effect mobilities of 0.2–0.6 cm2 V−1 s−1 achieved under nitrogen.