TY - JOUR
T1 - High-performance all-solid-state flexible carbon/TiO2 micro-supercapacitors with photo-rechargeable capability
AU - Cai, Jinguang
AU - Lv, Chao
AU - Watanabe, Akira
N1 - Funding Information:
This work was supported by a Grant-in-Aid for Scientific Research on Innovative Areas ?New Polymeric Materials Based on Element Blocks (No. 2401)? (JSPS KAKENHI Grant Number JP24102004) and JSPS KAKENHI Grant Number JP15H04132, National Natural Science Foundation of China (No. 21603201), China Academy of Engineering Physics (item no. TP201302-3), and the Fundamental Application Research of the Department of Science and Technology of Sichuan Province (Grant no. 2014JY0137). The authors thank Mr Eiji Aoyagi of the Electron Microscopy Center in Tohoku University for help with the SEM and TEM measurements. The authors also thank Ms Sayaka Ogawa for help with the XPS measurement.
PY - 2017
Y1 - 2017
N2 - A high-performance all-solid-state flexible interdigitated carbon/TiO2 micro-supercapacitor (MSC) with photo-rechargeable capability was prepared by combining a laser direct writing technique with electrophoretic deposition of TiO2 nanoparticles. The carbon/TiO2 MSC shows the same excellent capacitive performance as the pure carbon MSC, such as high specific capacitance up to 27.3 mF cm−2 at a typical current density of 0.05 mA cm−2, excellent cycling stability, long-time stability, and mechanical stability. Under UV light irradiation, the carbon/TiO2 MSC can be charged to above 100 mV, and still maintain 60 mV after 10 photo-charging cycles, demonstrating its photo-rechargeable capability. What's more, after 10 photo-charging cycles, the carbon/TiO2 MSC shows no capacitive performance degradation, which can be attributed to the high structural stability of the carbon/TiO2 MSC under UV light irradiation.
AB - A high-performance all-solid-state flexible interdigitated carbon/TiO2 micro-supercapacitor (MSC) with photo-rechargeable capability was prepared by combining a laser direct writing technique with electrophoretic deposition of TiO2 nanoparticles. The carbon/TiO2 MSC shows the same excellent capacitive performance as the pure carbon MSC, such as high specific capacitance up to 27.3 mF cm−2 at a typical current density of 0.05 mA cm−2, excellent cycling stability, long-time stability, and mechanical stability. Under UV light irradiation, the carbon/TiO2 MSC can be charged to above 100 mV, and still maintain 60 mV after 10 photo-charging cycles, demonstrating its photo-rechargeable capability. What's more, after 10 photo-charging cycles, the carbon/TiO2 MSC shows no capacitive performance degradation, which can be attributed to the high structural stability of the carbon/TiO2 MSC under UV light irradiation.
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U2 - 10.1039/c6ra25136f
DO - 10.1039/c6ra25136f
M3 - Article
AN - SCOPUS:85008618888
VL - 7
SP - 415
EP - 422
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 1
ER -