Results 71 to 80 of about 6,119 (253)

Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories

Advanced Energy Materials, EarlyView.
In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen, Zheyu Zhang, Kelvian T. Mularso, Bonghyun Jo, Hyun Suk Jung   +4 more
wiley   +1 more source

Selenocyanate Driven Organic Cations Homogenization in Wide‐Bandgap Perovskite

Advanced Energy Materials, EarlyView.
Selenocyanate pseudohalide doping stabilizes 1.66 eV wide‐bandgap formamidinium (FA)‐based perovskite lattices via strong FA+ hydrogen bonding and matched ionic radii. Uniform cation distribution and suppressed ion migration reduces defect losses, delivering >24% single‐junction efficiency and 32.66% perovskite/silicon tandem performance with ...
Zhi‐Wen Gao, Jun Fang, Yehui Wen, Longbin Qiu, Jiajia Zhang, Yong Wang, Wallace C. H. Choy   +6 more
wiley   +1 more source

Negative Activation Energy of Gate Reliability in Schottky-Gate p-GaN HEMTs: Combined Gate Leakage Current Modeling and Spectral Electroluminescence Investigation

IEEE Journal of the Electron Devices Society
For the first time, we use electrical characterization, spectrally-resolved electroluminescence measurements and degradation tests to explain the negative activation energy of gate reliability in power GaN HEMTs with p-GaN Schottky gate.
Manuel Fregolent, Mirco Boito, Michele Disaro, Carlo De Santi, Matteo Buffolo, Eleonora Canato, Michele Gallo, Cristina Miccoli, Isabella Rossetto, Giansalvo Pizzo, Alfio Russo, Ferdinando Iucolano, Gaudenzio Meneghesso, Enrico Zanoni, Matteo Meneghini   +14 more
doaj   +1 more source

Thin copolymer-cased light-emitting display made with fluorine-foped tin oxide substrates

Materials Research, 2004
Seven-segment displays are used to show numerical quantities in electronic equipment, being present in most of the low-end electronics. In this work we describe a novel organic light emitting display made with poly(1,10 decanedioxy 2 methoxy - 1,2 ...
Rudolf Lessmann, Ivo Alexandre Hümmelgen   +1 more
doaj   +1 more source

Methodology for Calculating the Damaged Surface and Its Relationship with Power Loss in Photovoltaic Modules by Electroluminescence Inspection for Corrective Maintenance

Sensors
Photovoltaic panels are exposed to various external factors that can cause damage, with the formation of cracks in the photovoltaic cells being one of the most recurrent issues affecting their production capacity.
Nieves Saborido-Barba, Carmen García-López, José Antonio Clavijo-Blanco, Rafael Jiménez-Castañeda, Germán Álvarez-Tey   +4 more
doaj   +1 more source

Recent advances on organic blue thermally activated delayed fluorescence (TADF) emitters for organic light-emitting diodes (OLEDs)

Beilstein Journal of Organic Chemistry, 2018
The design of highly emissive and stable blue emitters for organic light emitting diodes (OLEDs) is still a challenge, justifying the intense research activity of the scientific community in this field. Recently, a great deal of interest has been devoted
Thanh-Tuân Bui, Fabrice Goubard, Malika Ibrahim-Ouali, Didier Gigmes, Frédéric Dumur   +4 more
doaj   +1 more source

Photovoltaic failure diagnosis using imaging techniques and electrical characterization

EPJ Photovoltaics
Inspections of 48 photovoltaic (PV) modules within a 302.4 kWp solar array were undertaken to expose the presence of defects after 12 years of operation under the harsh environmental conditions of Djibouti.
Daher Daha Hassan, Mathieu Alexandre, Abdallah Asma, Mouhoumed Dek, Logerais Pierre-Olivier, Gaillard Leon, Ménézo Christophe   +6 more
doaj   +1 more source

Novel Multi-Scale Attention Generative Adversarial Network for Photovoltaic Solar Cell Defect Inspection Using Electroluminescence Images

IEEE Access
In the pursuit of promoting green energy, efficient defect inspection in solar cell manufacturing is crucial in enhancing the reliability of solar energy systems.
Yuanjun Guan, Yang Liu, Jiayi Wang, Tao Wang, Qianchuan Yi, Wenxin Jiang, Xiaopu Gu, Yichen Zhang, Li Zhang, Tianyan Han, Binbing Huang, Lilei Hu   +11 more
doaj   +1 more source

Achieving Long‐Wavelength Electroluminescence Using Two‐Coordinate Gold(I) Complexes: Overcoming the Energy Gap Law

Advanced Science
Two‐coordinate coinage metal complexes have emerged as promising emitters for highly efficient organic light‐emitting devices (OLEDs). However, achieving efficient long‐wavelength electroluminescence emission from these complexes remains as a daunting ...
Sreenivas Avula, Byung Hak Jhun, Unhyeok Jo, Seunga Heo, Jun Yeob Lee, Youngmin You   +5 more
doaj   +1 more source

Asymmetric Diphosphane Dioxides With A–π–A–π’–D Scaffolds for High‐Purity Deep‐Blue Luminescence

Chemistry – A European Journal, EarlyView.
Diphosphane dioxide‐based luminophores with donor–π–acceptor– π’–acceptor scaffold enable efficient deep‐blue emission from tunable charge‐transfer states affording high photoluminescence up to 95%. OLEDs reach EQE 4.9%, aided by triplet–triplet annihilation, highlighting a practical route to high‐performance blue emitters.
Eetu Hakkarainen, Zong‐Ying Liu, Jhon Sebastian Oviedo Ortiz, Nicolas Vanthuyne, Jeanne Crassous, Ondřej Mrózek, Fabien B. L. Cougnon, Wen‐Yi Hung, Pi‐Tai Chou, Igor O. Koshevoy, Andrey Belyaev   +10 more
wiley   +1 more source