CsPbBr3 Quantum Dots as Artificial Antennas to Enhance the Light-Harvesting Efficiency and Photoresponse of Zinc Porphyrin

2020 ◽  
Vol 124 (9) ◽  
pp. 5069-5078
Author(s):  
Tianfeng Li ◽  
Zhenmin Zhao ◽  
Cheng Gu ◽  
Jicun Ma ◽  
Yanmin Kuang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Harvesting ◽  
Zinc Porphyrin ◽  
Harvesting Efficiency ◽  
Light Harvesting Efficiency ◽  
Cspbbr3 Quantum Dots

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.

Theoretical study on the light harvesting efficiency of zinc porphyrin sensitizers for DSSCs

RSC Advances ◽  
2014 ◽  
Vol 4 (51) ◽  
pp. 26621-26634 ◽  
Author(s):  
Kadali Chaitanya ◽  
Xue-Hai Ju ◽  
B. Mark Heron
Keyword(s):  
Light Harvesting ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Zinc Porphyrin ◽  
Acceptor Group ◽  
Donor And Acceptor ◽  
Harvesting Efficiency ◽  
Light Harvesting Efficiency ◽  
Dft And Tddft Calculations

DFT and TDDFT calculations have been carried out to investigate the effect of donor and acceptor groups on the electronic properties of zinc-porphyrin sensitizers. The calculated results show that increasing the electron releasing strength of a meso-donor group opposite to a meso substituted acceptor group increases the light harvesting efficiency and short circuit current density.

scholarly journals The Size Effect of TiO2 Hollow Microspheres on Photovoltaic Performance of ZnS/CdS Quantum Dots Sensitized Solar Cell

Materials ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1583 ◽  
Author(s):  
Zhen Li ◽  
Libo Yu
Keyword(s):  
Quantum Dots ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Light Harvesting ◽  
Photovoltaic Performance ◽  
Hollow Microspheres ◽  
Cds Quantum Dots ◽  
Strong Light ◽  
Harvesting Efficiency ◽  
Light Harvesting Efficiency

Size controllable TiO2 hollow microspheres (HMS) were synthesized by a carbonaceous spheres (CS) template method. Based on TiO2 HMS, the ZnS/CdS quantum dots (QDs) were loaded to form a ZnS/CdS@TiO2 HMS photoanode for quantum dots sensitized solar cell (QDSSC). The size effects of TiO2 HMS on photovoltaic performance were investigated, and showed that TiO2 HMS with sizes ~560 nm produced the best short-circuit current density (Jsc) of 8.02 mA cm−2 and highest power conversion efficiency (PCE) of 1.83%, showing a better photovoltaic performance than any other QDSSCs based on TiO2 HMS with size ~330 nm, ~400 nm, and ~700 nm. The improvement of photovoltaic performance based on ~560 nm TiO2 HMS which can be ascribed to the enhanced light harvesting efficiency caused by multiple light reflection and strong light scattering of TiO2 HMS. The ultraviolet-visible (UV-vis) spectra and incident photo to the current conversion efficiency (IPCE) test results confirmed that the size of TiO2 HMS has an obvious effect on light harvesting efficiency. A further application of ~560 nm TiO2 HMS in ZnS/PbS/CdS QDSSC can improve the PCE to 2.73%, showing that TiO2 HMS has wide applicability in the design of QDSSCs.

scholarly journals SWCNT photocathodes sensitised with InP/ZnS core–shell nanocrystals

2016 ◽  
Vol 4 (16) ◽  
pp. 3379-3384 ◽  
Author(s):  
Thomas J. Macdonald ◽  
Daniel D. Tune ◽  
Melissa R. Dewi ◽  
Joseph C. Bear ◽  
Paul D. McNaughter ◽  
...  
Keyword(s):  
Light Harvesting ◽  
Core Shell ◽  
The Future ◽  
Harvesting Efficiency ◽  
Light Harvesting Efficiency

Increasing the light harvesting efficiency of photocathodes is an integral part of optimising the future efficiencies of solar technologies.

Enhancing the quasi-theoretical photocurrent density of ZnO nanorods via a lukewarm hydrothermal method

Nanoscale ◽  
2020 ◽  
Vol 12 (23) ◽  
pp. 12292-12299
Author(s):  
Ying-Chu Chen ◽  
Zhi-Jie Wu ◽  
Yu-Kuei Hsu
Keyword(s):  
Hydrothermal Method ◽  
Water Splitting ◽  
Light Harvesting ◽  
Zno Nanorods ◽  
Photocurrent Density ◽  
Photoelectrochemical Water Splitting ◽  
Harvesting Efficiency ◽  
Light Harvesting Efficiency

Anti-reflection enhanced the light harvesting efficiency of a ∼10-μm-long 1D ZnO NRA, which is evidently manifested in the quasi-theoretical photocurrent density that reached ∼0.9 mA cm−2 for solar photoelectrochemical water splitting.

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