Results 141 to 150 of about 1,920,107 (363)

Unveiling Energy Loss Mechanisms to Empower Ternary Organic Solar Cells with over 20% Efficiency: A Systematic Oligomeric Approach

Advanced Materials, EarlyView.
This study designs modular oligomeric donors (5BDD, 5BDD‐F, 5BDT‐F, 5BDT‐Cl) for ternary OSCs, achieving PCEs >20%. By systematically tuning energy levels, we reveal material compatibility, not HOMO alignment, drive VOC enhancement, suppress ACQ and reduce energy loss, offering new design principles for high‐efficiency OSCs.
Hao Xia, Caifa You, Jiehao Fu, Dou Luo, Ruijie Ma, Heng Liu, Yongwen Lang, Xinhui Lu, Weiguo Zhu, Gang Li   +9 more
wiley   +1 more source

Nonreciprocal phase shifts in a femtosecond dye laser [PDF]

, 1990
F. Salin, Philippe Grangier, Patrick Georges, G. Le Saux, Anne Brun   +4 more
openalex   +1 more source

Harnessing Photo‐Energy Conversion in Nanomaterials for Precision Theranostics

Advanced Materials, EarlyView.
Harnessing photo‐energy conversion in nanomaterials enables precision theranostics through light‐driven mechanisms such as photoluminescence, photothermal, photoelectric, photoacoustic, photo‐triggered surface‐enhanced Raman scattering (SERS), and photodynamic processes. This review explores six fundamental principles of photo‐energy conversion, recent
Jingyu Shi, Yadi Fan, Qin Zhang, Yingying Huang, Mo Yang   +4 more
wiley   +1 more source

Stress-state manipulation in fused silica via femtosecond laser irradiation

, 2016
Controlling the stress in glass after laser exposure is of prime importance not only for photonics applications, but also for preserving the mechanical integrity of glass components in general.
Y. Bellouard, A. Champion, Ben McMillen, Sebabrata Mukherjee, R. Thomson, C. Pépin, P. Gillet, Ya Cheng   +7 more
semanticscholar   +1 more source

Designing Physical Unclonable Functions From Optically Active Materials

Advanced Materials, EarlyView.
Assigning unforgeable “fingerprints” to manufactured goods is a key strategy to fight global counterfeiting. Optical physical unclonable functions (PUFs) are chemically generated random patterns of optically active materials serving as unique authenticators.
Maxime Klausen, Junfang Zhang, Molly M. Stevens   +2 more
wiley   +1 more source

Conjugation Pathway of Benzobisoxazoles in Polymer Donors Mediates the Charge Management and Enables Organic Solar Cells with Record Certified Efficiency

Advanced Materials, EarlyView.
Herein, the conjugation pathway isomerism of the benzobisoxazole (BBO) building block is systematically compared, by which a certified efficiency of 19.1% is obtained in corresponding all‐polymer solar cells. Abstract Charge management plays a pivotal role in achieving high‐performance bulk heterojunction (BHJ) organic solar cells (OSCs). In this study,
Miao Liu, Lunbi Wu, Yulong Hai, Yongmin Luo, Yao Li, Rouren Chen, Yue Ma, Tao Jia, Qingduan Li, Sha Liu, Ruijie Ma, Yue‐Peng Cai, Jiaying Wu, Gang Li, Shengjian Liu   +14 more
wiley   +1 more source

An exploration of safe and efficient nucleus fragmentation strategies for femtosecond laser-assisted cataract surgery in short axial length patients

BMC Ophthalmology
Purepose The intraoperative femtosecond laser time, Cumulative Dissipated Energy (CDE), Effective Phacoemulsification time (EPT), and intraoperative fluid perfusion volume were compared under different model fragmentation modes using Catalys femtosecond ...
Bin Lin, Long-long Chen, Dong-kan Li
doaj   +1 more source

Electronically driven adsorbate excitation mechanism in femtosecond-pulse laser desorption [PDF]

, 1995
Mads Brandbyge, Per Hedegård, Tony F. Heinz, James A. Misewich, D. M. Newns   +4 more
openalex   +1 more source

Direct Laser Writing of Polymer Nanocomposites for Tunable Structural Color

Advanced Materials, EarlyView.
Herein, direct laser writing is used to polymerize self‐assembled nanocomposite materials. Using fabrication parameters, the interparticle spacing is finely tuned beyond the thermodynamically stable state. This is exploited to generate wide gamut structural color in water.
Teodora Faraone, Jing Qian, Srikanth Kolagatla, A. Louise Bradley, Larisa Florea, Colm Delaney   +5 more
wiley   +1 more source

Application of femtosecond laser etching in the fabrication of bulk SiC accelerometer

Journal of Materials Research and Technology, 2022
Silicon carbide (SiC) is a promising material to fabricate MEMS accelerometers used in extreme environments for vibration monitoring. However, with ultra-high hardness and corrosion resistance, it is difficult to etch bulk SiC by traditional MEMS ...
Yu Yang, You Zhao, Lukang Wang, Yulong Zhao   +3 more
doaj