scholarly journals Enhanced light-harvesting by plasmonic hollow gold nanospheres for photovoltaic performance

2018 ◽  
Vol 5 (1) ◽  
pp. 171350 ◽  
Author(s):  
Hao Ding ◽  
Jindian Lv ◽  
Huaping Wu ◽  
Guozhong Chai ◽  
Aiping Liu
Keyword(s):  
Surface Plasmon Resonance ◽  
Light Harvesting ◽  
Photovoltaic Performance ◽  
Visible Region ◽  
Gold Nanospheres ◽  
Electron Hole ◽  
Hollow Gold Nanospheres ◽  
Photochemical Behaviour ◽  
Resonance Character ◽  
Energy Conversion Devices

A ‘sandwich'-structured TiO 2 NR/HGN/CdS photoanode was successfully fabricated by the electrophoretic deposition of hollow gold nanospheres (HGNs) on the surface of TiO 2 nanorods (NRs). The HGNs presented a wide surface plasmon resonance character in the visible region from 540 to 630 nm, and further acted as the scatter elements and light energy ‘antennas' to trap the local-field light near the TiO 2 NR/CdS layer, resulting in the increase of the light harvesting. An outstanding enhancement in the photochemical behaviour of TiO 2 NR/HGN/CdS photoanodes was attained by the contribution of HGNs in increasing the light absorption and the number of electron-hole pairs of photosensitive semiconductors. The optimized photochemical performance of TiO 2 NR/HGN/CdS photoanodes by using plasmonic HGNs demonstrated their potential application in energy conversion devices.

Schottky junction effect enhanced plasmonic photocatalysis by TaON@Ni NP heterostructures

2019 ◽  
Vol 55 (78) ◽  
pp. 11754-11757 ◽  
Author(s):  
Lang Pei ◽  
Taozhu Li ◽  
Yongjun Yuan ◽  
Tao Yang ◽  
Jiasong Zhong ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Light Harvesting ◽  
Localized Surface Plasmon ◽  
Schottky Junction ◽  
Electron Hole ◽  
Hybrid Photocatalyst

The localized surface plasmon resonance and Schottky junction in the TaON@Ni hybrid photocatalyst improve the light harvesting and promote the electron–hole separation and transport of TaON.

scholarly journals Preparation and Photocatalytic Performance for Degradation of Rhodamine B of AgPt/Bi4Ti3O12 Composites

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2206
Author(s):  
Gaoqian Yuan ◽  
Gen Zhang ◽  
Kezhuo Li ◽  
Faliang Li ◽  
Yunbo Cao ◽  
...  
Keyword(s):  
Visible Light ◽  
Noble Metal ◽  
Rhodamine B ◽  
Photocatalytic Performance ◽  
Bimetallic Nanoparticles ◽  
Resonance Effect ◽  
Visible Region ◽  
Photogenerated Electron ◽  
Pt Nanoparticles ◽  
Electron Hole

Loading a noble metal on Bi4Ti3O12 could enable the formation of the Schottky barrier at the interface between the former and the latter, which causes electrons to be trapped and inhibits the recombination of photoelectrons and photoholes. In this paper, AgPt/Bi4Ti3O12 composite photocatalysts were prepared using the photoreduction method, and the effects of the type and content of noble metal on the photocatalytic performance of the catalysts were investigated. The photocatalytic degradation of rhodamine B (RhB) showed that the loading of AgPt bimetallic nanoparticles significantly improved the catalytic performance of Bi4Ti3O12. When 0.10 wt% noble metal was loaded, the degradation rate for RhB of Ag0.7Pt0.3/Bi4Ti3O12 was 0.027 min−1, which was respectively about 2, 1.7 and 3.7 times as that of Ag/Bi4Ti3O12, Pt/Bi3Ti4O12 and Bi4Ti3O12. The reasons may be attributed as follows: (i) the utilization of visible light was enhanced due to the surface plasmon resonance effect of Ag and Pt in the visible region; (ii) Ag nanoparticles mainly acted as electron acceptors to restrain the recombination of photogenerated electron-hole pairs under visible light irradiation; and (iii) Pt nanoparticles acted as electron cocatalysts to further suppress the recombination of photogenerated electron-hole pairs. The photocatalytic performance of Ag0.7Pt0.3/Bi4Ti3O12 was superior to that of Ag/Bi4Ti3O12 and Pt/Bi3Ti4O12 owing to the synergistic effect between Ag and Pt nanoparticles.

Enhanced light-harvesting capability by phenothiazine in ruthenium sensitizers with superior photovoltaic performance

2012 ◽  
Vol 22 (1) ◽  
pp. 130-139 ◽  
Author(s):  
Jen-Fu Yin ◽  
Jian-Ging Chen ◽  
Jiann-T'suen Lin ◽  
Dibyendu Bhattacharya ◽  
Ying-Chan Hsu ◽  
...  
Keyword(s):  
Light Harvesting ◽  
Photovoltaic Performance

scholarly journals Hepatocellular Carcinoma: Intra-arterial Delivery of Doxorubicin-loaded Hollow Gold Nanospheres for Photothermal Ablation—Chemoembolization Therapy in Rats

Radiology ◽  
2016 ◽  
Vol 281 (2) ◽  
pp. 427-435 ◽  
Author(s):  
Junjie Li ◽  
Min Zhou ◽  
Fengyong Liu ◽  
Chiyi Xiong ◽  
Wanqin Wang ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Gold Nanospheres ◽  
Hollow Gold Nanospheres ◽  
Photothermal Ablation
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