Type

Journal Article

Authors

Valeria Nicolosi
Yury Gogotsi
Jonathan N Coleman
Georg S Duesberg
Aleksey Shmeliov
Niall McEvoy
Sang-Hoon Park
Andrés Seral-Ascaso
Babak Anasori
Chuanfang John Zhang
and 1 others

Subjects

Physics

Topics
transparent films h 2 transparent conductive electrodes energy storage volumetric capacitance state of the art mxene solid state supercapacitors transition metal carbon nanotube percolation cm 1 conductive films

Transparent, Flexible, and Conductive 2D Titanium Carbide (MXene) Films with High Volumetric Capacitance. (2017)

Abstract 2D transition-metal carbides and nitrides, known as MXenes, have displayed promising properties in numerous applications, such as energy storage, electromagnetic interference shielding, and catalysis. Titanium carbide MXene (Ti3 C2 Tx ), in particular, has shown significant energy-storage capability. However, previously, only micrometer-thick, nontransparent films were studied. Here, highly transparent and conductive Ti3 C2 Tx films and their application as transparent, solid-state supercapacitors are reported. Transparent films are fabricated via spin-casting of Ti3 C2 Tx nanosheet colloidal solutions, followed by vacuum annealing at 200 °C. Films with transmittance of 93% (≈4 nm) and 29% (≈88 nm) demonstrate DC conductivity of ≈5736 and ≈9880 S cm(-1) , respectively. Such highly transparent, conductive Ti3 C2 Tx films display impressive volumetric capacitance (676 F cm(-3) ) combined with fast response. Transparent solid-state, asymmetric supercapacitors (72% transmittance) based on Ti3 C2 Tx and single-walled carbon nanotube (SWCNT) films are also fabricated. These electrodes exhibit high capacitance (1.6 mF cm(-2) ) and energy density (0.05 µW h cm(-2) ), and long lifetime (no capacitance decay over 20 000 cycles), exceeding that of graphene or SWCNT-based transparent supercapacitor devices. Collectively, the Ti3 C2 Tx films are among the state-of-the-art for future transparent, conductive, capacitive electrodes, and translate into technologically viable devices for next-generation wearable, portable electronics.
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Full list of authors on original publication

Valeria Nicolosi, Yury Gogotsi, Jonathan N Coleman, Georg S Duesberg, Aleksey Shmeliov, Niall McEvoy, Sang-Hoon Park, Andrés Seral-Ascaso, Babak Anasori, Chuanfang John Zhang and 1 others

Experts in our system

1
Valeria Nicolosi
Trinity College Dublin
Total Publications: 67
 
2
Jonathan Coleman
Trinity College Dublin
Total Publications: 217
 
3
Georg Duesberg
Trinity College Dublin
Total Publications: 116
 
4
Aleksey Shmeliov
Trinity College Dublin
Total Publications: 7
 
5
Niall Mcevoy
Trinity College Dublin
Total Publications: 54
 
6
Sang-Hoon Park
Trinity College Dublin
Total Publications: 8
 
7
Andrés Seral-Ascaso
Trinity College Dublin
Total Publications: 6
 
8
Chuanfang John Zhang
Trinity College Dublin
Total Publications: 5