Quantitative cascade energy transfer in semiconductor thin films

2014 ◽  
Vol 13 (7) ◽  
pp. 1031-1038 ◽  
Author(s):  
Rebecca Flamini ◽  
Assunta Marrocchi ◽  
Anna Spalletti
Keyword(s):  
Thin Films ◽  
Energy Transfer ◽  
Charge Transfer ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism ◽  
Semiconductor Thin Films ◽  
Cascade Energy

An energy transfer mechanism, useful to enhance sunlight harvesting, was found to be operative in donor arylacetylenes’ blend thin films, leading to emission only from the bathochromic species, efficiently quenched by charge transfer to [60]PCBM.

Luminescence Properties and energy transfer mechanism of Eu3+ and Tm3+ Co-doped AlN Thin Films

2021 ◽  
pp. 118082
Author(s):  
Hai Ma ◽  
Xiaodan Wang ◽  
Feifei Chen ◽  
Jiafan Chen ◽  
Xionghui Zeng ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Transfer ◽  
Transfer Mechanism ◽  
Luminescence Properties ◽  
Energy Transfer Mechanism ◽  
Co Doped

scholarly journals Triplet Energy Transfer Mechanism of Ternary Organic Hybrid Thin Films of PFO/MEH-PPV/CsPbBr3 Perovskite Quantum Dots

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2094
Author(s):  
Bandar Ali Al-Asbahi ◽  
Saif M. H. Qaid ◽  
Hamid M. Ghaithan ◽  
Abdullah S. Aldwayyan
Keyword(s):  
Thin Films ◽  
Energy Transfer ◽  
Transfer Mechanism ◽  
Ternary Blend ◽  
Energy Transfer Mechanism ◽  
Triplet Energy ◽  
Blending Method ◽  
Donor And Acceptor ◽  
Hybrid Thin Films ◽  
Triplet Energy Transfer

The triplet energy transfer mechanism of novel poly(9,9-di-n-octylflourenyl-2,7-diyl) (PFO)/poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV)/CsPbBr3 perovskite quantum dot (PQD) hybrid thin films was comprehensively investigated. The concentrations of PFO and MEH-PPV in all the specimens were fixed, while the PQD content was varied with various weight ratios and premixed by a solution blending method before it was spin-coated onto glass substrates. The triplet non-radiative Förster resonance energy transfers (FRETs) in the PFO/MEH-PPV/PQDs ternary blend, the dual FRET from PFO to both PQDs and MEH-PPV, and the secondary FRET from PQDs to MEH-PPV were observed. The values of the Förster radius (Ro) of FRET from PFO to MEH-PPV in the presence of various PQD contents (Case I) increased from 92.3 to 104.7 Å, and they decreased gradually from 68.0 to 39.5 Å for FRET from PFO to PQDs in the presence of MEH-PPV (Case II). These Ro values in both cases confirmed the dominance of FRET in ternary hybrid thin films. Upon increasing the PQD content, the distance between the donor and acceptor molecules (RDA) and the conjugation length (Aπ) in both cases gradually decreased. The small values of Ro, RDA, and Aπ with a decrease in the energy transfer lifetime (τET) due to an increase in the PQD contents in both Cases I and II confirmed the efficient FRET in the hybrid. To prevent intermolecular transfer in PFO, the concentrations of MEH-PPV (Case I) and PQDs (Case II) should be decreased to a range of 0.57–0.39 mM and increased in the range of 1.42–7.25 mM.

scholarly journals Photophysical Properties and Energy Transfer Mechanism in PFO/TiO2/MEH-PPV Nanocomposite Thin Films

2020 ◽  
Vol 49 (11) ◽  
pp. 2801-2809
Author(s):  
Sameer Albati ◽  
Mohammad Hafizuddin Hj. Jumali ◽  
Bandar Ali Al-Asbahi ◽  
Saif M.H. Qaid ◽  
Chi Chin Yap
Keyword(s):  
Thin Films ◽  
Energy Transfer ◽  
Photophysical Properties ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism ◽  
Nanocomposite Thin Films

A unique Z-scheme 2D/2D nanosheet heterojunction design to harness charge transfer for photocatalysis

2015 ◽  
Vol 3 (20) ◽  
pp. 11006-11013 ◽  
Author(s):  
Huijie Cheng ◽  
Jungang Hou ◽  
Osamu Takeda ◽  
Xing-Min Guo ◽  
Hongmin Zhu
Keyword(s):  
Energy Transfer ◽  
Charge Transfer ◽  
Rational Design ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism ◽  
Shed Light

This work will shed light on the rational design of more complex 2D/2D heterojunctions with the Z-scheme energy-transfer mechanism.

Energy transfer mechanism between terbium and europium ions in zinc oxide and zinc silicates thin films

2014 ◽  
Vol 553 ◽  
pp. 33-37 ◽  
Author(s):  
C. Davesnne ◽  
A. Ziani ◽  
C. Labbé ◽  
P. Marie ◽  
C. Frilay ◽  
...  
Keyword(s):  
Thin Films ◽  
Zinc Oxide ◽  
Energy Transfer ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism

Photophysical properties and energy transfer mechanism of PFO/Fluorol 7GA hybrid thin films

2013 ◽  
Vol 142 ◽  
pp. 57-65 ◽  
Author(s):  
Bandar Ali Al-Asbahi ◽  
Mohammad Hafizuddin Haji Jumali ◽  
Chi Chin Yap ◽  
Moayad Husein Flaifel ◽  
Muhamad Mat Salleh
Keyword(s):  
Thin Films ◽  
Energy Transfer ◽  
Photophysical Properties ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism ◽  
Hybrid Thin Films

Energy transfer mechanism of supersonic jet noise through rectangular nozzles

2017 ◽  
Vol 65 (2) ◽  
pp. 110-120 ◽  
Author(s):  
Zhe Chen ◽  
Jiu-Hui Wu ◽  
A-Dan Ren ◽  
Xin Chen ◽  
Zhen Huang
Keyword(s):  
Energy Transfer ◽  
Supersonic Jet ◽  
Jet Noise ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism ◽  
Supersonic Jet Noise
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