Near‐Infrared Nanophosphor Embedded in Mesoporous Silica Nanoparticle with High Light‐Harvesting Efficiency for Dual Photosystem Enhancement

2021 ◽  
Vol 60 (13) ◽  
pp. 6955-6959
Author(s):  
Wen‐Tse Huang ◽  
Ting‐Yi Su ◽  
Ming‐Hsien Chan ◽  
Jia‐You Tsai ◽  
Yi‐Yin Do ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Near Infrared ◽  
Light Harvesting ◽  
Silica Nanoparticle ◽  
High Light ◽  
Mesoporous Silica Nanoparticle ◽  
Harvesting Efficiency ◽  
Light Harvesting Efficiency

Optical and electronic properties of croconates dye molecules adsorbed on TiO2 brookite nanocluster for dye sensitized solar cells application

2020 ◽  
Vol 10 (11) ◽  
pp. 1917-1924
Author(s):  
Tshifhiwa Ranwaha ◽  
Ife Elegbeleye ◽  
Nnditshedzeni Maluta ◽  
Rapela Maphanga
Keyword(s):  
Absorption Spectra ◽  
Density Functional ◽  
Near Infrared ◽  
Light Harvesting ◽  
Dye Sensitized Solar Cells ◽  
Solar Spectrum ◽  
Dye Molecules ◽  
Harvesting Efficiency ◽  
Light Harvesting Efficiency ◽  
Absorption Wavelength

Density functional theory simulations were employed to explore the geometric, electronic and optical properties of two croconate dye molecules adsorbed on TiO2 brookite nanocluster. The calculations were based on determination of conjugate length, absorption spectra and light harvesting efficiency. The absorption energies, absorption spectra and electronic states of the dye-TiO2 complex were calculated using TD/DFT. The analysis of the excited state properties shows that CR1 and CR2 showed excitation around 580 nm and 680 nm respectively with a corresponding maximum light harvesting efficiency of 66% and 33.9% for CR1 and CR2 respectively. The absorption wavelength support that the croconate dye molecules can improve the efficiency of DSSCs as they can absorb the near infrared photons which increases the absorption range of DSSCs on the solar spectrum. The adsorption energies of CR1 and CR2 on TiO2 brookite are 3.93 eV and 5.53 eV respectively, suggesting a stable grafting of the dyes onto the surface of the semiconductor. The shifting of the absorption wavelength towards the infrared region upon adsorption gives probability of more electron transport into the large band gap of TiO2.

Near Infrared Light-Powered Janus Mesoporous Silica Nanoparticle Motors

2016 ◽  
Vol 138 (20) ◽  
pp. 6492-6497 ◽  
Author(s):  
Mingjun Xuan ◽  
Zhiguang Wu ◽  
Jingxin Shao ◽  
Luru Dai ◽  
Tieyan Si ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Near Infrared ◽  
Silica Nanoparticle ◽  
Infrared Light ◽  
Mesoporous Silica Nanoparticle ◽  
Near Infrared Light

High light harvesting efficiency CuInS2 quantum dots/TiO2/MoS2 photocatalysts for enhanced visible light photocatalytic H2 production

2018 ◽  
Vol 47 (16) ◽  
pp. 5652-5659 ◽  
Author(s):  
Yong-Jun Yuan ◽  
Gaoliang Fang ◽  
Daqin Chen ◽  
Yanwei Huang ◽  
Ling-Xia Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Light Harvesting ◽  
H2 Production ◽  
High Light ◽  
Composite Photocatalysts ◽  
Visible Light Driven ◽  
Cuins2 Quantum Dots ◽  
Harvesting Efficiency ◽  
Light Harvesting Efficiency

High light harvesting efficiency CuInS2 quantum dots/TiO2/MoS2 composite photocatalysts were prepared for visible-light-driven photocatalytic H2 production.

Mesoporous silica hybrids as an antireflective coating to enhance light harvesting and achieve over 16% efficiency of organic solar cells

2019 ◽  
Vol 7 (47) ◽  
pp. 14962-14969 ◽  
Author(s):  
Yalun Wang ◽  
Mengxue Chen ◽  
Donghui Li ◽  
Zhiwei Huang ◽  
Yuchao Mao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Mesoporous Silica ◽  
Organic Solar Cells ◽  
Light Absorption ◽  
Glass Substrate ◽  
Light Harvesting ◽  
Silica Nanoparticle ◽  
Antireflective Coating ◽  
Mesoporous Silica Nanoparticle ◽  
Silica Hybrids

Mesoporous silica nanoparticle hybrids have been synthesized and explored to cast as an antireflective coating onto the glass substrate of non-fullerene organic solar cells (OSCs) to enhance the light absorption and efficiency (from 15.4% to 16.2%).

A High-Light-Harvesting-Efficiency Coumarin Dye for Stable Dye-Sensitized Solar Cells

2007 ◽  
Vol 19 (8) ◽  
pp. 1138-1141 ◽  
Author(s):  
Z.-S. Wang ◽  
Y. Cui ◽  
K. Hara ◽  
Y. Dan-oh ◽  
C. Kasada ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Harvesting ◽  
Dye Sensitized Solar Cells ◽  
High Light ◽  
Dye Sensitized ◽  
Harvesting Efficiency ◽  
Light Harvesting Efficiency ◽  
Coumarin Dye ◽  
Sensitized Solar Cells
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