Results 71 to 80 of about 15,183 (303)

Efficient n‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack Mechanism

open access: yesAdvanced Science, EarlyView.
A novel n‐doping mechanism for organic semiconductors (OSCs) is revealed, based on a nucleophilic‐attack reaction. Using n‐Butyl lithium (n‐BuLi) as a model dopant, this strategy achieves exceptionally high conductivity in C60 and PC61BM. The mechanism is broadly applicable to various OSCs and other nucleophilic dopants, establishing a new chemical ...
Huan Wei   +16 more
wiley   +1 more source

Tailoring the Crystallization Behavior of Mixed Lead‐Tin Mixed‐Halide Perovskites for Optimal‐Bandgap Solar Cells

open access: yesAdvanced Science, EarlyView.
Carefully tuning the composition of mixed lead‐tin mixed iodide‐bromide perovskites results in an optimal‐bandgap semiconductor for solar energy conversion. Homogenous crystallization of this perovskite involves a short time delay between deposition of the precursor solution and applying an antisolvent. Using a bulk additive and top surface passivation
Lana M. Kessels   +6 more
wiley   +1 more source

Integrated Bulk–Surface Engineering Stabilizes MA‐Free Wide‐Bandgap Perovskites for Tandem Photovoltaics

open access: yesAdvanced Science, EarlyView.
High‐bromide wide‐bandgap perovskites suffer from defects and phase segregation, limiting tandem performance. We report a bulk–surface coupling effect to heal lattice/surface defects and suppress halide migration. As a result, the wide‐bandgap device achieves 23.71% efficiency, while monolithic Si‐based tandems reach 32.26%, exhibiting exceptional long‐
Yu Tong   +8 more
wiley   +1 more source

Synthesis and properties of new poly(amide-imide)s based on 2,5-bis(trimellitimido)chlorobenzene [PDF]

open access: bronze, 1999
Chin‐Ping Yang   +5 more
openalex   +1 more source

Sugar‐Armored Pesticides: Self‐Assembled System for Enhanced Foliar Adhesion and Sustained Delivery of Hydrophobic Antimicrobials Against Bacterial Diseases

open access: yesAdvanced Science, EarlyView.
This study develops a sugar‐armored, self‐assembled pesticide delivery system that enhances foliar adhesion, provides sustained release, effectively disrupts biofilms, and demonstrates superior bactericidal activity for improved disease control.
Jinghan Yang   +3 more
wiley   +1 more source

Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors

open access: yesAdvanced Electronic Materials, EarlyView.
A novel n‐dopant, phosphazenium tetrafluoroborate (P2BF4), is introduced for efficient n‐doping in N2200, P(PzDPP‐CT2) and other organic semiconductors (OSCs). P2BF4‐doped OSC films exhibit exceptional thermal stability, maintaining electrical conductivity after heating at > 150 °C for 24 h. This stability allows organic thermoelectric devices based on
Huan Wei   +11 more
wiley   +1 more source

Semi‐Transparent Organic Photodiodes with Near‐Infrared Detection Fabricated by Inkjet Printing

open access: yesAdvanced Electronic Materials, EarlyView.
This work shows the inkjet printing of semi‐transparent and opaque organic photodiodes that enable light detection in the near‐infrared regime. Their transparency and high detection speed make them ideal for applications in soft robotics, wearable devices, and light communication systems.
Luis Arturo Ruiz‐Preciado   +3 more
wiley   +1 more source

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