Inkjet-printed, self-aligned organic Schottky diodes on imprinted plastic substrates

TY - JOUR

T1 - Inkjet-printed, self-aligned organic Schottky diodes on imprinted plastic substrates

AU - Cao, Motao

AU - Hyun, Woo Jin

AU - Francis, Lorraine F.

AU - Frisbie, C. Daniel

N1 - Publisher Copyright: © 2020 IOP Publishing Ltd.

PY - 2020

Y1 - 2020

N2 - Roll-to-roll printing provides an efficient way to fabricate large quantities of flexible electronic devices at low cost. However, building a single multilayered electronic device such as a diode requires precise layer-to-layer alignment, which is currently a major technical challenge for roll-to-roll printing. Here, we report a novel self-aligned strategy to fabricate fully printed organic Schottky diodes on pre-patterned plastic substrates. This strategy utilizes imprinted networks of capillary channels to guide the flow of inks delivered sequentially into adjoining ink receivers by inkjet printing, allowing self-alignment at the micrometer level. The optimized design of the capillary channels and ink receivers realized better control of ink flows and significantly improved device yield. Printed diodes exhibited outstanding rectification ratios (>104) and excellent stability against repeated bending. Our work demonstrates a promising method for large-scale manufacturing of flexible and printed diodes.

AB - Roll-to-roll printing provides an efficient way to fabricate large quantities of flexible electronic devices at low cost. However, building a single multilayered electronic device such as a diode requires precise layer-to-layer alignment, which is currently a major technical challenge for roll-to-roll printing. Here, we report a novel self-aligned strategy to fabricate fully printed organic Schottky diodes on pre-patterned plastic substrates. This strategy utilizes imprinted networks of capillary channels to guide the flow of inks delivered sequentially into adjoining ink receivers by inkjet printing, allowing self-alignment at the micrometer level. The optimized design of the capillary channels and ink receivers realized better control of ink flows and significantly improved device yield. Printed diodes exhibited outstanding rectification ratios (>104) and excellent stability against repeated bending. Our work demonstrates a promising method for large-scale manufacturing of flexible and printed diodes.

KW - flexible electronics

KW - inkjet printing

KW - organic Schottky diode

UR - http://www.scopus.com/inward/record.url?scp=85081997823&partnerID=8YFLogxK

U2 - 10.1088/2058-8585/ab670a

DO - 10.1088/2058-8585/ab670a

M3 - 文章

AN - SCOPUS:85081997823

SN - 2058-8585

VL - 5

JO - Flexible and Printed Electronics

JF - Flexible and Printed Electronics

IS - 1

M1 - 015006

ER -