Highly Stretchable and Transparent Supercapacitor by Ag-Au Core-Shell Nanowire Network with High Electrochemical Stability.
Stretchable and transparent electronics have steadily attracted huge attention in wearable devices. Although Ag nanowire is the one of the most promising candidates for transparent and stretchable electronics, its electrochemical instability has forbidden its application to the development of electrochemical energy devices such as supercapacitors. Here, we introduce a highly stretchable and transparent supercapacitor based on electrochemically stable Ag-Au core-shell nanowire percolation network electrode. We developed a simple solution process to synthesize the Ag-Au core-shell nanowire with excellent electrical conductivity as well as greatly enhanced chemical and electrochemical stabilities compared to pristine Ag nanowire. The proposed core-shell nanowire-based supercapacitor still possesses fine optical transmittance and outstanding mechanical stability up to 60% strain. The Ag-Au core-shell nanowire can be a strong candidate for future wearable electrochemical energy devices.
Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
Habeom
H
Lee
Laser Thermal Lab, Department of Mechanical Engineering, University of California , Berkeley 94720, United States.
Sukjoon
S
Hong
Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
Jinhwan
J
Lee
Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
Young Duk
YD
Suh
Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
Jinhyeong
J
Kwon
Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
Hyunjin
H
Moon
Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
Hyeonseok
H
Kim
Novel Applied Nano Optics Lab, Department of Physics, Kyungpook National University , 80 Daehak-ro, Buk-gu, Daegu 41566, Korea.
Junyeob
J
Yeo
Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
Seung Hwan
SH
Ko
Ag−Au core−shell nanowire; nanowire percolation network; stretchable and transparent supercapacitor; stretchable electronics; transparent energy device; wearable electronics