High-performance bifacial semitransparent organic photovoltaics featuring a decently transparent TeO2/Ag electrode

Author(s):  
Xin Liu ◽  
Yunsen Zhao ◽  
Jiangsheng Yu ◽  
Rihong Zhu

The development of bifacial semitransparent organic photovoltaics (ST-OPVs) is hindered by the limited choice of proper rear transparent electrodes. Herein, tellurium oxide (TeO2) featuring a high refractive index and negligible...

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3458 ◽  
Author(s):  
Chao Zhuang ◽  
Yifan Xu ◽  
Ningsheng Xu ◽  
Jinxiu Wen ◽  
Huanjun Chen ◽  
...  

Plasmonic gold nanorods play important roles in nowadays state-of-the-art plasmonic sensing techniques. Most of the previous studies and applications focused on gold nanorods with relatively small aspect ratios, where the plasmon wavelengths are smaller than 900 nm. Gold nanorods with large aspect ratios are predicted to exhibit high refractive-index sensitivity (Langmir 2008, 24, 5233–5237), which therefore should be promising for the development of high-performance plasmonic chemical- and bio-sensors. In this study, we developed gold nanorods with aspect ratios over 7.9, which exhibit plasmon resonances around 1064 nm. The refractive index (RI) sensitivity of these nanorods have been evaluated by varying their dielectric environment, whereby a sensitivity as high as 473 nm/RIU (refractive index unit) can be obtained. Furthermore, we have demonstrated the large-aspect-ratio nanorods as efficient substrate for surface enhanced Raman spectroscopy (SERS), where an enhancement factor (EF) as high as 9.47 × 108 was measured using 4-methylbenzenethiol (4-MBT) as probe molecule. Finally, a type of flexible SERS substrate is developed by conjugating the gold nanorods with the polystyrene (PS) polymer. The results obtained in our study can benefit the development of plasmonic sensing techniques utilized in the near-infrared spectral region.


2018 ◽  
Vol 30 (26) ◽  
pp. 1707526 ◽  
Author(s):  
Zhi Jiang ◽  
Kenjiro Fukuda ◽  
Xiaomin Xu ◽  
Sungjun Park ◽  
Daishi Inoue ◽  
...  

2017 ◽  
Vol 14 (5) ◽  
pp. 1209-1224 ◽  
Author(s):  
Shigeru Kubota ◽  
Yoshiki Harada ◽  
Takenari Sudo ◽  
Kensaku Kanomata ◽  
Bashir Ahmmad ◽  
...  

Author(s):  
Chao Zhuang ◽  
Yifan Xu ◽  
Ningsheng Xu ◽  
Jinxiu Wen ◽  
Huanjun Chen ◽  
...  

Plasmonic gold nanorods play important roles in nowadays state-of-the-art plasmonic sensing techniques. Most of the previous studies and applications focused on gold nanorods with relatively small aspect ratios, where the plasmon wavelengths are smaller than 900 nm. Gold nanorods with large aspect ratios are predicted to exhibit high refractive-index sensitivity (Langmir 2008, 24, 5233–5237.), which therefore should be promising for developing of high-performance plasmonic chemical- and bio-sensors. In this study, we developed gold nanorods with aspect ratios over 7.9, which exhibit plasmon resonances around 1064 nm. The refractive index (RI) sensitivity of these nanorods have been evaluated by varying their dielectric environment, whereby a sensitivity as high as 473 nm/RIU can be obtained. Furthermore, we have demonstrated the large-aspect-ratio nanorods as efficient substrate for surface enhanced Raman spectroscopy (SERS), where an enhancement factor (EF) as high as 9.47×108 was measured using 4-methylbenzenethiol (4-MBT) as probe molecule. Finally, a type of flexible SERS substrate is developed by conjugating the gold nanorods with the polystyrene (PS) polymer. The results obtained in our study can benefit the development of plasmonic sensing techniques utilized in the near-infrared spectral region.


2018 ◽  
Vol 27 (8) ◽  
pp. 087802 ◽  
Author(s):  
Lai-Jun Wang ◽  
Qiao-Hong Chen ◽  
Fa-Long Yu ◽  
Xi Gao

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