E.t.c. S.r.l.

Tufts University

Stefano Toffanin

Michele Muccini

Raffaella Capelli

Gianluca Generali

Roberto Zamboni

Valentina Benfenati

David L Kaplan

Fiorenzo G Omenetto

Jason Amsden

The invention relates to ecosustainable and biocompatible, low cost, ambient friendly electronic and optoelectronic devices, such as transistors and light-emitting transistors, made with silk fibroin or blended with other biopolymers, methods for fabrication and methods of using the silk-based electronics and optoelectronics. The silk-based electronics and optoelectronics can be implanted in vivo and in vitro for biomedical applications, such as for drug discovery or drug screening assays and devices. The silk-based devices may be used in the food industry and embedded in packaging for tracking and sensing, for security purposes or exploited as disposable not harmful for the environment efficient general electronic and optoelectronic devices.

Silk transistor devices

An organic ambipolar light emitting field effect transistor having an architecture with layers stacked one over the other, adapted to generate a diffused illumination is described. The transistor has a gate electrode, a dielectric layer superposed to the gate electrode, an ambipolar channel superposed to the dielectric layer having a P-type semiconductor layer whose energy band is determined by its highest occupied molecular orbital HOMO-SCand lowest unoccupied molecular orbital LUMO-SC, a N-type semiconductor layer whose energy band is determined by its highest occupied molecular orbital HOMO-SCand lowest unoccupied molecular orbital LUMO-SCand a light emitting layer adapted to allow recombination of charge carriers of opposite sign, interposed between the P-type semiconductor layer and the N-type semiconductor layer, whose energy band is determined by its highest occupied molecular orbital HOMO-R and lowest unoccupied molecular orbital LUMO-R, respectively; a source electrode adapted to inject charges of a first type and a drain electrode adapted to inject charges of a second type, said source electrode and drain electrode being in contract with a same layer of said P-type or N-type semiconductor layers, the other of said semiconductor layers being in contact with the dielectric layer.

Organic light emitting ambipolar field effect transistor with distributed light emission

The present invention relates to a device comprising an organic field effect transistor (OFET) with charge injecting contacts containing a semiconductor layer formed by a perylene derivative, to uses of said device as a medical sensor and/or as a medical cell stimulator and to methods of stimulating and/or monitoring biological cellular activity by using said device.

Platform comprising an organic field-effect transistor for biological and medical applications

The present invention relates to a field effect electroluminescent ambipolar organic transistor in which there are two couples of control electrodes, a layer of ambipolar organic semiconductor in direct contact with the source and the drain electrode and two separate dielectric layers, and wherein said dielectric layers are each arranged between the ambipolar organic semiconductor layer and a couple of control electrodes.

Growing community of inventors

Sant'Angelo di Piove di Sacco, Italy

Stefano Toffanin