scholarly journals Enhanced photovoltaic performance of ultrathin Si solar cells via semiconductor nanocrystal sensitization: energy transfer vs. optical coupling effects

Nanoscale ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 5873-5883 ◽  
Author(s):  
Son Hoang ◽  
Ahsan Ashraf ◽  
Matthew D. Eisaman ◽  
Dmytro Nykypanchuk ◽  
Chang-Yong Nam

Efficient energy transfer from semiconductor nanocrystals, combined with optical coupling effects, enhances the efficiency of ultrathin Si solar cells by up to 45 percent.

2018 ◽  
Vol 6 (27) ◽  
pp. 7302-7310 ◽  
Author(s):  
Kai Li ◽  
Rik Van Deun

A series of (Na,K)Mg(La,Gd)TeO6:Mn4+,Nd3+,Yb3+ materials were prepared and the broadband spectral conversion of UV/visible to near-infrared emission for c-Si solar cells was effectively realized via efficient energy transfer processes.


RSC Advances ◽  
2017 ◽  
Vol 7 (56) ◽  
pp. 35525-35527 ◽  
Author(s):  
Maria Méndez ◽  
Emilio Palomares

We investigate the dual use of tris(8-hydroxyquinolinato)aluminium, known as Alq3, as selective contact for electrons and, moreover, as fluorescence emitting layer to increase the photocurrent of perovskite solar cells.


2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Hannah J. Eggimann ◽  
Jay B. Patel ◽  
Michael B. Johnston ◽  
Laura M. Herz

Abstract Organic semiconductors are commonly used as charge-extraction layers in metal-halide perovskite solar cells. However, parasitic light absorption in the sun-facing front molecular layer, through which sun light must propagate before reaching the perovskite layer, may lower the power conversion efficiency of such devices. Here, we show that such losses may be eliminated through efficient excitation energy transfer from a photoexcited polymer layer to the underlying perovskite. Experimentally observed energy transfer between a range of different polymer films and a methylammonium lead iodide perovskite layer was used as basis for modelling the efficacy of the mechanism as a function of layer thickness, photoluminescence quantum efficiency and absorption coefficient of the organic polymer film. Our findings reveal that efficient energy transfer can be achieved for thin (≤10 nm) organic charge-extraction layers exhibiting high photoluminescence quantum efficiency. We further explore how the morphology of such thin polymer layers may be affected by interface formation with the perovskite.


2010 ◽  
Vol 96 (8) ◽  
pp. 083109 ◽  
Author(s):  
Andrey A. Lutich ◽  
Andreas Pöschl ◽  
Guoxin Jiang ◽  
Fernando D. Stefani ◽  
Andrei S. Susha ◽  
...  

2021 ◽  
Author(s):  
Brandon Yalin ◽  
Andreas C Liapis ◽  
Matthew D Eisaman ◽  
Dmytro Nykypanchuk ◽  
Chang-Yong Nam

Energy transfer (ET) from nanocrystals (NCs) has shown potential to enhance the optoelectronic performance of ultrathin semiconductor devices such as ultrathin Si solar cells, but the experimental identification of optimal...


Soft Matter ◽  
2021 ◽  
Author(s):  
Xinxian Ma ◽  
bo qiao ◽  
Jinlong Yue ◽  
JingJing Yu ◽  
yutao geng ◽  
...  

Based on a new designed acyl hydrazone gelator (G2), we developed an efficient energy transfer supramolecular organogel in glycol with two different hydrophobic fluorescent dyes rhodamine B (RhB) and acridine...


2004 ◽  
Vol 43 (15) ◽  
pp. 1976-1979 ◽  
Author(s):  
Freek J. M. Hoeben ◽  
Laura M. Herz ◽  
Clément Daniel ◽  
Pascal Jonkheijm ◽  
Albertus P. H. J. Schenning ◽  
...  

2012 ◽  
Vol 22 (21) ◽  
pp. 10816 ◽  
Author(s):  
Diana Savateeva ◽  
Dzmitry Melnikau ◽  
Vladimir Lesnyak ◽  
Nikolai Gaponik ◽  
Yury P. Rakovich

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