Progress in Photovoltaics, 2021 III–V//Si multijunction solar cells offer a pathway to increase the power conversion efficiency beyond the fundamental Auger limit of silicon single‐junctions.
Patrick Schygulla +10 more
semanticscholar +1 more source
Efficient resonant power conversion
IEEE Transactions on Industrial Electronics, 1990 The DC analysis of a series-resonant converter operating above resonant frequency is presented. The results are used to analyze the current form factor and its effect on the efficiency. The selection of the switching frequency to maximize the efficiency is considered.
Valtchev, S.S. (author) +1 more
openaire +3 more sources
Repeater Power Conversion Efficiency in Submarine Optical Communication Systems
IEEE Photonics Journal, 2021 In power-limited trans-oceanic submarine systems, the electrical-to-optical (E/O) power conversion efficiency determines the amount of optical signal power generated by repeaters, which governs the cable capacity.
Xiaojun Liang +2 more
doaj +1 more source
Photochromic dye-sensitized solar cells with light-driven adjustable optical transmission and power conversion efficiency. [PDF]
Nat Energy, 2020 Huaulmé Q +10 more
europepmc +2 more sources
75%-efficiency blue generation from an intracavity PPKTP frequency doubler [PDF]
, 2004 We report on a high-efficiency 461 nm blue light conversion from an external cavity-enhanced second-harmonic generation of a 922 nm diode laser with a quasi-phase-matched KTP crystal (PPKTP).
Arie +36 more
core +4 more sources
Hybrid Power Harvesting for Increased Power Conversion Efficiency
IEEE Microwave and Wireless Components Letters, 2015 This work presents a cooperative power harvesting scheme, collecting power from two or more independent ambient energy sources into a single non-linear component. It is shown that the interaction of uncorrelated signals in a nonlinear device can greatly improve the conversion efficiency of the harvester.
Lorenz, Carlos +5 more
openaire +2 more sources
A polymer tandem solar cell with 10.6% power conversion efficiency
Nature Communications, 2013 An effective way to improve polymer solar cell efficiency is to use a tandem structure, as a broader part of the spectrum of solar radiation is used and the thermalization loss of photon energy is minimized.
Jingbi You +10 more
semanticscholar +1 more source
Heat absorption properties of ground material for solar chimney power plants [PDF]
, 2016 One of the major challenges to the widespread application of the solar chimney power plant is its low-power conversion efficiency because of the three technological processes involved.
Al-Azawiey, S. S., Hassan, S. B.
core +1 more source
Half-Heusler Alloys for Efficient Thermoelectric Power Conversion [PDF]
Journal of Electronic Materials, 2016 Half-Heusler (HH) phases (space group F43m, Clb) are increasingly gaining attention as promising thermoelectric materials in view of their thermal stability, scalability, and environmental benignity as well as efficient power output. Until recently, the verifiable dimensionless figure of merit (ZT) of HH phases has remained moderate near 1, which ...
Long Chen +3 more
openaire +2 more sources
Surface-emitting circular DFB, disk-, and ring-Bragg resonator lasers with chirped gratings. III: gain saturation effects and above-threshold analysis [PDF]
, 2009 As Part III of this series, this paper focuses on an above-threshold modal analysis which includes gain saturation effects in the surface-emitting chirped circular grating lasers. We derive an exact energy relation which states that, in steady state, the
Sun, Xiankai, Yariv, Amnon
core +1 more source