High efficiency solar cells tailored using biomass-converted graded carbon quantum dots

Nanoscale ◽  
2019 ◽  
Vol 11 (32) ◽  
pp. 15083-15090 ◽  
Author(s):  
Liming Liu ◽  
Xueping Yu ◽  
Zichuan Yi ◽  
Feng Chi ◽  
Honghang Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
High Efficiency ◽  
Energy Levels ◽  
Carbon Quantum Dots ◽  
High Efficiency Solar Cells

The photovoltaic performances of solar cells have been significantly improved by incorporating biomass-converted carbon quantum dots with graded energy levels into sensitized devices.

Effects of insertion of strain-engineering Ga(In)NAs layers on optical properties of InAs/GaAs quantum dots for high-efficiency solar cells

2016 ◽  
Vol 52 ◽  
pp. 177-180 ◽  
Author(s):  
Emil-Mihai Pavelescu ◽  
Ville Polojärvi ◽  
Andreas Schramm ◽  
Antti Tukiainen ◽  
Arto Aho ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Solar Cells ◽  
High Efficiency ◽  
Strain Engineering ◽  
High Efficiency Solar Cells

Ultra-high stacks of InGaAs quantum dots for high efficiency solar cells

2011 ◽  
Author(s):  
Takeyoshi Sugaya ◽  
Osamu Numakami ◽  
Shigenori Furue ◽  
Hironori Komaki ◽  
Takeru Amano ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
High Efficiency ◽  
High Efficiency Solar Cells

scholarly journals The Role of Carbon Quantum Dots in Organic Photovoltaics: A Short Overview

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 232
Author(s):  
Barbara Vercelli
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Structural Engineering ◽  
Energy Levels ◽  
Dye Sensitized Solar Cells ◽  
Carbon Quantum Dots ◽  
Excitation Wavelength ◽  
Photovoltaic Devices

Carbon quantum dots (CDs) are a new class of fluorescent carbonaceous nanomaterials that were casually discovered in 2004. Since then, they have become object of great interest in the scientific community because of their peculiar optical properties (e.g., size-dependent and excitation wavelength-dependent fluorescence), which make them very similar to the well-known semiconductor quantum dots and suitable for application in photovoltaic devices (PVs). In fact, with appropriate structural engineering, it is possible to modulate CDs photoluminescence properties, band gap, and energy levels in order to realize the band matching suitable to enable the desired directional flow of charge carriers within the PV device architecture in which they are implanted. Considering the latest developments, in the present short review, the employment of CDs in organic photovoltaic devices (OPVs) will be summarized, in order to study the role played by these nanomaterials in the improvement of the performances of the devices. After a first brief summary of the strategies of structural engineering of CDs and the effects on their optical properties, the attention will be devoted to the recent highlights of CDs application in organic solar cells (OSCs) and in dye sensitized solar cells (DSSCs), in order to guide the users towards the full exploitation of the use of these nanomaterials in such OPV devices.

Strain-compensated InAs/GaNAs quantum dots for use in high-efficiency solar cells

2008 ◽  
Vol 93 (8) ◽  
pp. 083111 ◽  
Author(s):  
Ryuji Oshima ◽  
Ayami Takata ◽  
Yoshitaka Okada
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
High Efficiency ◽  
High Efficiency Solar Cells

Ultra-high stacks of InGaAs/GaAs quantum dots for high efficiency solar cells

2012 ◽  
Vol 5 (3) ◽  
pp. 6233 ◽  
Author(s):  
Takeyoshi Sugaya ◽  
Osamu Numakami ◽  
Ryuji Oshima ◽  
Shigenori Furue ◽  
Hironori Komaki ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
High Efficiency ◽  
High Efficiency Solar Cells

Quasi-quantum dot-induced stabilization of α-CsPbI3 perovskite for high-efficiency solar cells

2020 ◽  
Vol 8 (20) ◽  
pp. 10226-10232 ◽  
Author(s):  
Cheng Liu ◽  
Yi Yang ◽  
Xin Liu ◽  
Yong Ding ◽  
Zulqarnain Arain ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Gibbs Energy ◽  
High Efficiency ◽  
Ambient Condition ◽  
High Efficiency Solar Cells ◽  
Surface Gibbs Energy

Quasi-quantum dots α-CsPbI3 films are in situ prepared by using a new ligand with ultralow contents. By increasing the film hydrophobicity and surface Gibbs energy, the device with efficiency of 13.5% keeps stable under ambient condition for 30 days.

µ-Graphene Crosslinked CsPbI3 Quantum Dots for High Efficiency Solar Cells with Much Improved Stability

2018 ◽  
Vol 8 (22) ◽  
pp. 1800007 ◽  
Author(s):  
Qian Wang ◽  
Zhiwen Jin ◽  
Da Chen ◽  
Dongliang Bai ◽  
Hui Bian ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
High Efficiency ◽  
High Efficiency Solar Cells ◽  
Improved Stability
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