Results 201 to 210 of about 194,102 (294)

Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings

Advanced Science, EarlyView.
Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini, Jaspreet Walia, Luis Angel Mayoral‐Astorga, Hyung Woo Choi, Arnaud Weck, Pierre Berini   +5 more
wiley   +1 more source

Machine‐Learning‐Guided Design of Incommensurate Antiferroelectrics via Field‐Driven Phase Engineering

Advanced Science, EarlyView.
The key to enhancing the energy storage performance of antiferroelectrics lies in regulating the phase transition and reverse phase transition. A phase‐field‐machine learning framework is employed to predict the energy storage performance of Pb‐based incommensurate antiferroelectrics with multi‐scale regulation strategy, thereby revealing the dynamic ...
Ke Xu, Xiaoming Shi, Zhaochen Xi, Shouzhe Dong, Changqing Guo, Rongzhen Gao, Letao Yang, Jing Wang, Di Zhou, Houbing Huang   +9 more
wiley   +1 more source

Tunable surface electromagnetic waves at a graphene-hypercrystal boundary under magnetic bias. [PDF]

Sci Rep
Fedorin I.
europepmc   +1 more source

Site‐Specific Carboxylate Functionalization in Conjugated Hole Transport Polymers Enables Efficient CsPbI2Br Single‐Junction and Tandem Solar Cells

Advanced Science, EarlyView.
Two polymeric isomers, 2TC‐F and TTC‐F, are designed and synthesized as hole transport materials to investigate the impact of the carboxylate side‐chain connection site. The TTC‐F isomer, owing to its superior energy level alignment, higher planarity, and more effective defect passivation, enabled CsPbI2Br single‐junction and CsPbI2Br/D18:Y6 tandem ...
Jingfei Wang, Weilin Zhang, Haobin Zhang, Zongwei Chen, Tangyue Xue, Qing Guo, Zhi Zheng, Zongtao Wang, Erjun Zhou, Qiang Guo   +9 more
wiley   +1 more source

Effect of moisture content variation on dielectric properties of seeds of multipurpose species in 20 MHz-3 GHz frequency range. [PDF]

Sci Rep
Budzeń M, Kafarski M, Majcher J, Szypłowska A, Wilczek A, Lewandowski A, Leśniak T, Gałęzewski L.   +7 more
europepmc   +1 more source

A Metal‐Free Molecular Ferroelectric With Large Piezoelectricity and Its Porous Composite for Superior Output Power Density

Advanced Science, EarlyView.
Metal‐free molecular crystal [(CH3C6H10NH3)(18‐crown‐6)][ClO4] functions as a high‐performance molecular ferroelectric. Through strategic methylation of the cyclohexylamine unit, the compound achieves large spontaneous polarization and outstanding piezoelectric coefficients.
Nan Chen, Wenjuan Wei, Le Ye, Lingyu Wan, Yen Wei   +4 more
wiley   +1 more source

Performance enhancement of polysiloxane-based nanocomposite TENGs through optimized MWCNT concentration. [PDF]

Front Chem
Tene T, Gulahmadov O, Gahramanli L, Muradov M, Musayeva N, Bellucci S, Trapalis C, Tubon-Usca G, Peñafiel-Ojeda CR, Gomez CV.   +9 more
europepmc   +1 more source

High‐Order Nonlinear Photonic Crystal with Ordered Structures for Giant Enhancement of Frequency Tripling

Advanced Science, EarlyView.
A meta‐YAG crystal with artificially order/disorder structures was fabricated to realize the efficient third‐harmonic generation at 343 nm with a conversion efficiency of 4.5×10−3, surpassing six orders of magnitude compared to bulk YAG crystal. Moreover, a wide spectral tunability from 331 to 356 nm was also achieved in the meta‐YAG, indicating its ...
Xiaotian Guo, Qiaoling Han, Fei Liang, Bin Zhang, Dazhi Lu, Haohai Yu, Huaijin Zhang   +6 more
wiley   +1 more source

Interface-Engineered Copper-Barium Strontium Titanate Composites with Tunable Optical and Dielectric Properties. [PDF]

Nanomaterials (Basel)
Tihtih M, Basyooni-M Kabatas MA, En-Nadir R, Kocserha I.   +3 more
europepmc   +1 more source

Extending Carrier Diffusion via Interfacial Dielectric Shielding for Operationally Stable Perovskite/TOPCon Tandem Solar Cells

Advanced Science, EarlyView.
A high‐dielectric niobium oxide (NbOX) electron‐selective contact is introduced to modulate the perovskite/C60 interface in perovskite/silicon tandem solar cells. By shrinking the defect capture radius and chemically passivating Pb‐related defects, NbOX extends carrier diffusion length and optimizes energy‐level alignment, enabling both high efficiency
Wenfeng Liu, Zhiqin Ying, Huan Li, Xin Li, Haofan Ma, Yunyun Yu, Ziyu He, Rui Li, Meili Zhang, Yuheng Zeng, Luyao Zheng, Xi Yang, Jichun Ye   +12 more
wiley   +1 more source