Organic thin film transistors comprising thienyl oligomers and their use as gaseous phase sensors

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

BASIC ELECTRIC ELEMENTS

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.

iccom1[1]

Patent Title

Organic thin film transistors comprising thienyl oligomers and their use as gaseous phase sensors

Other Title

Transistori a film sottile organico composti e procedimenti per la loro realizzazione e loro uso come sensori in fase gassosa

Inventor(s)

BABUDRI FRANCESCO

FARINOLA GIANLUCA MARIA

NASO FRANCESCO

PALMISANO FRANCESCO

TORSI LUISA

TANESE MARIA CRISTINA

ZAMBONIN PIER GIORGIO

HASSAN OMAR OMAR

VALLI LUDOVICO

Published As

Publ. number Pub. date Appl. number
Appl. date
Publ. Stage
ITMI20070217
20080808
2007IT-MI00217
20070207
A1 – Application fo patent of invention
WO2008096239
20080814
2008WO-IB00263
20080206
A1 – International publication with international search report
EP2121647
20091125
2008EP-0709772
20080206
A1 – Application published with search report
US2010140597 20100610
2008US-0524017
20080206
A1 – First published patent application

NsRIF

1856 — Catalogo brevetti CNR

Country of validity

EP

IT

PCT

US

Ownership

CNR (30%)

Università degli Studi di Bari (60%)

Unisalento (10%)

Contacts

info@ilo-puglia.cnr.it