Visible Light Sensitization of TiO2 Nanotubes by Bacteriochlorophyll-C Dyes for Photoelectrochemical Solar Cells

2014 ◽  
Vol 2 (9) ◽  
pp. 2097-2101 ◽  
Author(s):  
Lok-kun Tsui ◽  
Justine Huang ◽  
Michal Sabat ◽  
Giovanni Zangari
2003 ◽  
Vol 75 (2) ◽  
pp. 163-165 ◽  
Author(s):  
Christian G. Garcia ◽  
André S. Polo ◽  
Neyde Y. Murakami Iha

The extract of Jambolão (java plum), Eugenia jambolana Lam, was used as a natural sensitizer of a wide band-gap semiconductor (TiO2) in photoelectrochemical solar cells. The natural dye, adsorbed onto the semiconductor surface, absorbs visible light and promotes electron transfer across the dye/semiconductor interface. Photogenerated current and voltage as high as 2.3 mA and 711 mV, respectively, were obtained and effective conversion of visible light into electricity was achieved. The use of a natural product as the semiconductor sensitizer enables a faster and simpler production of cheaper and environmentally friendly solar cells.


2001 ◽  
Vol 3 (3) ◽  
pp. 131-151 ◽  
Author(s):  
Christian Graziani Garcia ◽  
Neyde Yukie Murakami Iha

The development of thin-layer transparent solar cells based on dye sensitization of nanocrystallinen-typeTiO2undertaken at the Laboratory of Inorganic Photochemistry and Energy Conversion at the Chemistry Institute of Universidade de São Paulo is presented. Compounds of the formulacis-[(dcbH2)2RuLL],L,L′= substituted pyridines, as nanocrystallineTiO2,dcbH2=4,4′−(CO2H)2−2,2′-bipyridine andL,L′= substituted pyridines, have been successfully employed as molecular sensitizers in photoelectrochemical solar cells based on dye-sensitization ofn-TiO2. This regenerative solar cell consists of a TCO glass with a dye-sensitizedTiO2semiconductor film as a photoanode,I2/LiIsolution in acetonitrile as a redox mediator and a transparent Pt coated TCO glass as a counter electrode. Efficient conversion of visible light into electricity was achieved with IPCE (Incident Photon-to-Current Conversion Efficiency) as high as 50% between 400 and 550 nm.


Author(s):  
Antoine Goujon ◽  
Lou Rocard ◽  
Thomas Cauchy ◽  
Piétrick Hudhomme

AzaBenzannulated PDI (AzaBPDI) dyes were synthesized in high yields via a new reaction sequence involving an imine condensation followed by visible light-induced photocyclization. The large scope and efficiency of this alternative to the Pictet-Spengler reaction is demonstrated, and allows the easy preparation of dimeric AzaBPDI as potential non-fullerene acceptors for organic solar cells.


2021 ◽  
Author(s):  
YiLin Yin ◽  
Jingchao Liu ◽  
Zengnan Wu ◽  
Ting Zhang ◽  
Zenghe Li

As one of the most essential semiconductors, ZnO has been widely used for solar cells, photocatalysis, environmental remediation, etc. Doping and morphology control of ZnO can significantly improve the efficiency...


Solar RRL ◽  
2020 ◽  
pp. 2000638
Author(s):  
Bowen Liu ◽  
Yunfei Han ◽  
Zerui Li ◽  
Huimin Gu ◽  
Lingpeng Yan ◽  
...  

2007 ◽  
Vol 17 (30) ◽  
pp. 3205 ◽  
Author(s):  
Isabelle Rodriguez ◽  
Fernando Ramiro-Manzano ◽  
Pedro Atienzar ◽  
Jose Manuel Martinez ◽  
Francisco Meseguer ◽  
...  

2011 ◽  
Vol 21 (26) ◽  
pp. 9406 ◽  
Author(s):  
Junfeng Yan ◽  
Feng Zhou

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