Wafer-Scale
Two-Dimensional MoS<sub>2</sub> Layers
Integrated on Cellulose Substrates Toward Environmentally Friendly
Transient Electronic Devices
Changhyeon Yoo
Md Golam Kaium
Luis Hurtado
Hao Li
Sushant Rassay
Jinwoo Ma
Tae-Jun Ko
Sang Sub Han
Mashiyat Sumaiya Shawkat
Kyu Hwan Oh
Hee-Suk Chung
Yeonwoong Jung
10.1021/acsami.0c06198.s001
https://acs.figshare.com/articles/journal_contribution/Wafer-Scale_Two-Dimensional_MoS_sub_2_sub_Layers_Integrated_on_Cellulose_Substrates_Toward_Environmentally_Friendly_Transient_Electronic_Devices/12360995
We explored the feasibility of wafer-scale
two-dimensional (2D)
molybdenum disulfide (MoS<sub>2</sub>) layers toward futuristic environmentally
friendly electronics that adopt biodegradable substrates. Large-area
(> a few cm<sup>2</sup>) 2D MoS<sub>2</sub> layers grown on silicon
dioxide/silicon (SiO<sub>2</sub>/Si) wafers were delaminated and integrated
onto a variety of cellulose-based substrates of various components
and shapes in a controlled manner; examples of the substrates include
planar papers, cylindrical natural rubbers, and 2,2,6,6-tetramethylpiperidine-1-oxyl-oxidized
cellulose nanofibers. The integrated 2D layers were confirmed to well
preserve their intrinsic structural and chemical integrity even on
such exotic substrates. Proof-of-concept devices employing large-area
2D MoS<sub>2</sub> layers/cellulose substrates were demonstrated for
a variety of applications, including photodetectors, pressure sensors,
and field-effect transistors. Furthermore, we demonstrated the complete
“dissolution” of the integrated 2D MoS<sub>2</sub> layers
in a buffer solution composed of baking soda and deionized water,
confirming their environmentally friendly transient characteristics.
Moreover, the approaches to delaminate and integrate them do not demand
any chemicals except for water, and their original substrates can
be recycled for subsequent growths, ensuring excellent chemical benignity
and process sustainability.
2020-05-22 22:14:54
Wafer-Scale Two-Dimensional MoS 2 Layers Integrated
field-effect transistors
cellulose-based substrates
2 D MoS 2 layers
pressure sensors
baking soda
MoS 2
Proof-of-concept devices
2 D layers
chemical integrity
Cellulose Substrates
molybdenum disulfide
process sustainability
Environmentally Friendly Transient Electronic Devices
cm 2
chemical benignity
buffer solution
deionized water