Results 61 to 70 of about 10,142 (134)

Performance Monitoring of Photovoltaic Modules Using Machine‐Learning‐Based Solutions: A Survey of Current Trends

Energy Science &Engineering, EarlyView.
The graphical abstract presents the concept of applying machine‐learning algorithms to assess the performance of photovoltaic modules. Data from solar panels are fed to surrogates of intelligent models, to assess the following performance metrics: identifying faults, quantifying energy production and trend degradation over time. The combination of data
Nangamso Nathaniel Nyangiwe, Abraham Dimitri Kapim Kenfack, Nicolas Thantsha, Mandla Msimanga   +3 more
wiley   +1 more source

Surface-acoustic-wave-driven luminescence from a lateral p-n junction

, 2007
The authors report surface-acoustic-wave-driven luminescence from a lateral p-n junction formed by molecular beam epitaxy regrowth of a modulation doped GaAs/AlGaAs quantum well on a patterned GaAs substrate.
Anderson, D., Atkinson, P., Barnes, C. H. W., Bremner, S. P., Gell, J. R., Jones, G. A. C., Kataoka, M., Norman, C. E., Ritchie, D. A., Sfigakis, F., Shields, A. J., Ward, M. B.   +11 more
core   +1 more source

Reliability and Degradation Mechanisms of Photovoltaic Modules in Pakistan

Energy Science &Engineering, EarlyView.
Reliability of the PV module. ABSTRACT The number of photovoltaic (PV) installations has grown rapidly in the last 10 years in Pakistan due to the growing electricity demand, the availability of favourable solar resources, and the national renewable energy objectives.
Zafar Ullah Khan, Adnan Daud Khan, Muhammad Ahsan Amjed   +2 more
wiley   +1 more source

A trade‐off between efficiency and stability in a class of sky‐blue organic light‐emitting diodes

FlexMat, EarlyView.
OLED efficiency and stability are correlated with device structure using combined experimental and simulation approach. Efficient, but less stable devices suffer mainly from exciton‐exciton annihilation, while their opposites have excitons predominantly quenched by polarons.
Eglė Tankelevičiūtė, Sandra Jenatsch, Beat Ruhstaller, Eli Zysman‐Colman, Ifor D. W. Samuel   +4 more
wiley   +1 more source

Lead Iodide Perovskite Light-Emitting Field-Effect Transistor

, 2015
Despite the widespread use of solution-processable hybrid organic-inorganic perovskites in photovoltaic and light-emitting applications, determination of their intrinsic charge transport parameters has been elusive due to the variability of film ...
Bruno, Annalisa, Chin, Xin Yu, Cortecchia, Daniele, Soci, Cesare, Yin, Jun   +4 more
core   +2 more sources

Spin‐Crossover Modulated Luminescence in Materials and Molecular Complexes

Helvetica Chimica Acta, EarlyView.
The synergistic coupling of spin‐crossover and luminescent properties holds great promise for the development of multifunctional and stimuli‐responsive molecular materials. This contribution provides a comprehensive overview of the field, surveying the possible coupling mechanisms, the various synthetic strategies and their potential applicability, as ...
Charlotte Egger, Claude Piguet
wiley   +1 more source

Optical imaging of resonant electrical carrier injection into individual quantum dots

, 2010
We image the micro-electroluminescence (EL) spectra of self-assembled InAs quantum dots (QDs) embedded in the intrinsic region of a GaAs p-i-n diode and demonstrate optical detection of resonant carrier injection into a single QD.
A. Baumgartner, A. Patanè, D. Bimberg, E. Stock, E. Stock, L. Eaves, M. Henini   +6 more
core   +1 more source

Regulation of charge distribution for highly efficient colloidal quantum‐well light‐emitting diodes with deep‐red emissions

InfoMat, EarlyView.
By using efficient core/shell colloidal quantum‐wells (CQWs) and an effective triple hole transport layer architecture, CQW light‐emitting diodes (CQW‐LEDs) with long‐wavelength emissions exhibit a record external quantum efficiency of 17.45%, a record luminance of 9335 cd m−2, extremely low efficiency roll‐off, ultra‐saturated emissions, and excellent
Wenhui Fang, Chenlin Wang, Dongxiang Luo, Jun Gao, Yuan Liu, Jingyan Liao, Sui‐Dong Wang, Zhengji Xu, Zhenyu Yang, Shaolin Liao, Yuan Gao, Baiquan Liu   +11 more
wiley   +1 more source

Immense magnetic response of exciplex light emission due to correlated spin-charge dynamics

, 2016
As carriers slowly move through a disordered energy landscape in organic semiconductors, tiny spatial variations in spin dynamics relieve spin blocking at transport bottlenecks or in the electron-hole recombination process that produces light. Large room-
Flatté, Michael E., Harmon, Nicholas J., Sahin-Tiras, Kevser, Wang, Yifei, Wohlgenannt, Markus   +4 more
core   +2 more sources

Elucidating the origin of open‐circuit voltage in ternary organic solar cells with a nonfullerene and a fullerene acceptor

InfoMat, EarlyView.
Fullerenes tend to alloy with polymer:nonfullerene acceptor hosts, yielding composition‐dependent increases in open‐circuit voltage while recombination remains governed by the charge‐transfer state energy and is independent of the nature of the third component.
Dominic Blätte, Marcella Günther, Carlito S. Ponseca Jr., Andreas Weis, Rik Hooijer, Lucie Quincke, Miguel A. T. Cachafeiro, Wolfgang Tress, Jose D. Perea, Salvador Leon, Ali Shuaib, Pavel Chabera, Tönu Pullerits, Thomas Bein, Tayebeh Ameri   +14 more
wiley   +1 more source