TCM 2018 Abstract book - page 9

Multifunctional paper electronics
Rodrigo Martins
*
1
, Luís Pereira
1
, Elvira Fortunato
1
1 CENIMAT/i3N and CEMOP-UNINOVA, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade NO
VA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
The use of disposable recyclable, eco-friendly, sustainable and low-cost devices with multiple functions is
becoming a demand in the emerging area of the Internet of Things as a way to decrease the degree of complexity
of the electronic circuits required to serve a plethora of applications. Moreover, for low-cost disposable
applications, it is relevant the systems to be recyclable.
Printable electronics and flexible electronics are key areas of development worldwide, once offer the potential to
add functionality to everyday objects at very low costs that would be difficult with conventional technologies.
This was pushed by the large success of organic electronics over the past few decades due to their attractive
features such as low process temperatures, good mechanical flexibility, light weight and the possibility to use a
wide range of substrates and being recyclable. Besides that, we can prepare these devices using inexpensive
solution processes over large areas. These benefits offered by printable and embedded electronics have being
recognized in many sectors. Nevertheless, the bottleneck here is the low electronics performances so far
achieved.
The idea beyond the present study concerns to exploit our imagination with simple questions such as: What
happens if it was possible to have a simple and universal device architecture, easy to implement on paper
substrates, but capable to provide different multiple functionalities? It would be possible to have a common
template for electronic systems on paper that would be then easily customized depending on the final
application? The present study answers to these challenges by reporting a multigate paper transistor where paper
is simultaneously the substrate and the dielectric, while a metal-oxide-semiconductor (IGZO) is used as the
active channel, being the same device able to present logic functionalities simply by varying the amplitude and
frequency of the input gate signals. These transistors operate at drain voltages of 1 V with low power, exhibiting
ION/IOFF > 10
4
and a mobility ≈ 2 cm
2
V
-1
s
-1
, serving the specifications for a broad range of smart disposable
low power electronics. To sustain all this study, an analytical compact model was developed able to precisely
reproduce the response of paper dual-gate FETs and provide full understanding of their unique and innovative
characteristics.
Figure 1.
Device configuration, structure and current-voltage transfer characteristics of the PDG/BFG-FET
.
Acknowledgments
This work was funded by European Projects NewFun (ERC-StG-2014, grant GA 640598); BET-EU (H2020-
TWINN-2015.
References
[1] R. Martins et al in Papertronics: multigate paper transistor for multifunction applications , Applied Materials
Today, 2018;
[2] . A. Vicente et al in Multifunctional cellulose-paper for light harvesting and smart sensing applications, J.
Materials Chemistry C Vol 6, pp: 3143-3181, 2018.A. K. Geim, K. S. Novoselov,
Nature Materials
2007
,
6
,
183.
TCM
Plenary 1
-09-
1,2,3,4,5,6,7,8 10,11,12,13,14,15,16,17,18,19,...278
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