Opto-electrical devices incorporating metal nanowires
View Patent ↗The present disclosure relates to OLED and PV devices including transparent electrodes that are formed of conductive nanostructures and methods of improving light out-coupling in OLED and input-coupling in PV devices.
1. A process comprising:
providing a donor film by:
(i) forming a matrix on a release liner, the matrix having a top surface;
(ii) depositing a plurality of nanostructures on the top surface of the matrix;
(iii) reflowing the matrix to form a reflowed matrix;
(iv) pressing the nanostructures into the reflowed matrix such that the transfer film contacts the top surface of the matrix;
(v) removing the transfer film to expose the top surface;
providing a partial optical stack including a substrate, a cathode disposed on the substrate and an organic stack disposed on the cathode, the partial optical stack having a top surface; and
contacting the top surface of the donor film with the top surface of the partial optical stack.
2. The process of claim 1 wherein pressing the nanostructures into the reflowed matrix comprises calendering the nanostructures.
3. The process of claim 1 further comprising applying a transfer film on the plurality of nanostructures; and applying pressure to the transfer film to press the nanostructures into the reflowed matrix.
4. The process of claim 2 , further comprising removing the release liner.
5. The process of claim 3 , further comprising removing the release liner.
6. The process of claim 1 wherein the plurality of nanostructures includes silver nanowires.