SCHEDA BREVETTO

Abstract:

This invention pertains to gaseous analytes sensor devices comprising organic thin film transistor and, in particular sensors able to perform the enantiomeric discrimination of gaseous analytes. The organic thin films are characterized by comprising a compound of formula (I).

Advantages:

Further aspects and advantage of this invention will be highlighted in the following description of figures, which is proposed for the sake of better illustating, but not to limit: the figures include: – Figure 1 is a schematic cross sectional view of an organic thin film transistor in a “bilayer” configuration according to one of the possible realization of the present invention;
Compounds with formula (T), advantageously the ones with formula (F) and more advantageously the compounds PTO, PTA, PTZ, DTA e DTZ can be used in the fabrication of active layers for transistors above described.
Another aspect of the invention is the use of one – or more than one – compounds with formula (I) or – more advantageously – with formula (F) as active layer in a thin film transistor with a bilayer configuration.
-cyclodextrines (useful to well discriminate chiral alcohols, ketones, terpenes etc.) is often not useful for the two citronellols separation and, in the rare cases in which it is useful, separation occurs with resolution degree lower than 1, that is highly insufficient.
Indeed such devices do not exhibit the desired field-effect amplified current at negative gate bias.

Application field:

ORGANIC CHEMISTRY

INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

Technical board:

Moreover the invention concerns with oligo (phenylenethienylenes) substituted with alcoxylic or alcoxylic chains functionalized with optically active amminoacids or monosaccharides, and their use for the construction of the abovementioned transistors.
The task of this invention is to provide a organic thin film transistor useful as gas phase analyte sensor. One aim of the present invention is to propose a new configuration of devices for the production of OTFT sensors. Another aim of the present invention is to provide suitable compounds for the development of different configurations of active layers in transistors allowing both good conductive properties and enantioselective recognition of compounds in gas phase.
Then, another aim of the present invention is to provide a transistor with the abovementioned feature and also useful for efficient recognition of analytes in gas phase.