High-efficiency commercial grade 1cm2AlGaInP/GaAs/Ge solar cells with embedded InAs quantum dots for concentrator demonstration system

2010 ◽  
Author(s):  
J. F. Wheeldon ◽  
C. E. Valdivia ◽  
D. Masson ◽  
F. Proulx ◽  
B. Riel ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
High Efficiency ◽  
Inas Quantum Dots ◽  
Commercial Grade

scholarly journals Two-step photon up-conversion solar cells

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Shigeo Asahi ◽  
Haruyuki Teranishi ◽  
Kazuki Kusaki ◽  
Toshiyuki Kaizu ◽  
Takashi Kita
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Transmission Loss ◽  
Energy Conversion Efficiency ◽  
High Potential ◽  
Next Generation ◽  
Inas Quantum Dots

Abstract Reducing the transmission loss for below-gap photons is a straightforward way to break the limit of the energy-conversion efficiency of solar cells (SCs). The up-conversion of below-gap photons is very promising for generating additional photocurrent. Here we propose a two-step photon up-conversion SC with a hetero-interface comprising different bandgaps of Al0.3Ga0.7As and GaAs. The below-gap photons for Al0.3Ga0.7As excite GaAs and generate electrons at the hetero-interface. The accumulated electrons at the hetero-interface are pumped upwards into the Al0.3Ga0.7As barrier by below-gap photons for GaAs. Efficient two-step photon up-conversion is achieved by introducing InAs quantum dots at the hetero-interface. We observe not only a dramatic increase in the additional photocurrent, which exceeds the reported values by approximately two orders of magnitude, but also an increase in the photovoltage. These results suggest that the two-step photon up-conversion SC has a high potential for implementation in the next-generation high-efficiency SCs.

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

High Efficiency Quantum Dot Sensitized Solar Cells Based on Direct Adsorption of Quantum Dots on Photoanodes

2017 ◽  
Vol 9 (27) ◽  
pp. 22549-22559 ◽  
Author(s):  
Wenran Wang ◽  
Guocan Jiang ◽  
Juan Yu ◽  
Wei Wang ◽  
Zhenxiao Pan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
High Efficiency ◽  
Sensitized Solar Cells ◽  
Direct Adsorption

Black phosphorus quantum dots as dual-functional electron-selective materials for efficient plastic perovskite solar cells

2018 ◽  
Vol 6 (19) ◽  
pp. 8886-8894 ◽  
Author(s):  
Nianqing Fu ◽  
Chun Huang ◽  
Peng Lin ◽  
Mingshan Zhu ◽  
Tao Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Black Phosphorus ◽  
Selective Layer ◽  
Dual Functional ◽  
Black Phosphorus Quantum Dots ◽  
Electron Extraction

Dual-functional black phosphorus quantum dot electron selective layer was designed for plastic perovskite solar cells. The efficient electron extraction and improved perovskite film quality contributed to the reasonably high efficiency.

scholarly journals Ligand dependent oxidation dictates the performance evolution of high efficiency PbS quantum dot solar cells

2020 ◽  
Vol 4 (1) ◽  
pp. 108-115 ◽  
Author(s):  
David Becker-Koch ◽  
Miguel Albaladejo-Siguan ◽  
Vincent Lami ◽  
Fabian Paulus ◽  
Hengyang Xiang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Lead Sulfide ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Continuous Illumination ◽  
Quantum Dot Solar Cells ◽  
The Stability ◽  
Pbs Quantum Dots ◽  
Pbs Quantum Dot

The stability of lead sulfide (PbS) quantum dots (QD) under continuous illumination in oxygenated environments depends on the choice of ligands, determining the evolution of photovoltaic performance of high efficiency PbS QD solar cells.

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