Results 151 to 160 of about 1,912,130 (294)

Side‐Chain Asymmetry in Quinoxaline Copolymer Donors Enables Optimal Morphology and Improved Charge Dynamics for High‐Efficiency Organic Solar Cells

open access: yesAdvanced Science, EarlyView.
Side‐chain asymmetry in quinoxaline copolymer donors modulates donor–acceptor miscibility and blend morphology in all‐polymer solar cells. The asymmetric donor PBAQ6 enables more balanced charge transport, reduced recombination, and improved charge dynamics with PYF‐T‐o, delivering PCEs of 18.35% in binary devices and 19.52% in ternary devices ...
Can Zhu   +13 more
wiley   +1 more source

Sizing stand-alone photovoltaic systems for various locations in Sudan

open access: yes
A prerequisite to the sizing of stand-alone photovoltaic power sources is the availability of radiation data at the required location. Generally this is not available for isolated regions.
Elsheikh Ibrahim, Omar Elsammani
core  

Cycle Comparison of Lead-Acid Batteries Commonly Used in Small Stand-Alone Photovoltaic Systems

open access: yes, 1997
This report presents the results of cycle tests conducted on lead-acid batteries commonly used in stand-alone photovoltaic systems. The objectives of this work were to characterize battery performance under variable charge/discharge rates and variable ...
Florida Solar Energy Center   +1 more
core  

Rapid Cooling After Device Annealing Suppresses Interface Losses in Cu2ZnSnS4 Solar Cells Enabling High Efficiency and Stability

open access: yesAdvanced Science, EarlyView.
Rapid cooling after device annealing regulates the CdS/CZTS heterojunction and Mo/CZTS back contact, suppressing interfacial recombination and modifying the interfacial MoS2 layer, thereby enabling a 15.9% indoor PCE in pure‐sulfide CZTS solar cells.
Achmad Nasyori   +16 more
wiley   +1 more source

Self‐Sustaining Sensing Systems: Integration Strategies and Signal–Power Matching in Energy‐Harvesting Electronics

open access: yesAdvanced Science, EarlyView.
Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park   +5 more
wiley   +1 more source

Bioinspired Metastable Transient Peeling for Repeatable Rapid Release

open access: yesAdvanced Science, EarlyView.
Inspired by the explosive seed ejection of the squirting cucumber, this work introduces metastable transient peeling that temporally regulates stored interfacial energy release via a tunable energy barrier. A viscoelastic hemispherical gripper achieves 52 ms ultrafast, residue‐free release with 300 000‐cycle durability, enabling damage‐free handling of
Lvzhou Li   +8 more
wiley   +1 more source

Smart Simulation Solutions for Hybrid Solar Engine Performance. [PDF]

open access: yesACS Omega
Rodriguez-Cano MA   +3 more
europepmc   +1 more source

Self‐Healing Ionogel Dual‐Network Enables Synergistic Defect Passivation and Strain Relief for High‐Efficiency Robust Perovskite Photovoltaics

open access: yesAdvanced Science, EarlyView.
PSCs are afflicted by inherent defects and lattice strain that limit PCE and stability. A cross‐linked multifunctional ionogel [HA‐AA][EMIES] is developed to modulate crystallization, relieve residual strain, and passivate defects, extending carrier diffusion length to over 8 µm and delivering PCEs of 26.45% for rigid devices and 25.14% for flexible ...
Wen Wu   +12 more
wiley   +1 more source

Assessment and Optimization of 2T Perovskite/CIGS Tandems via Data-Driven and Optoelectronic Modelling. [PDF]

open access: yesNanomicro Lett
Giliberti G   +5 more
europepmc   +1 more source

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