Results 111 to 120 of about 6,119 (253)

Plastic luminescence in mechanoluminescent composites

InfoMat, EarlyView.
Through compression tests and numerical simulations, this study demonstrates that the luminescence of a mechanoluminescent (ML) composite is strongly associated with plastic strain, thereby providing new insight into deformation‐induced luminescence during the plastic stage.
Jianbo Fei, Jun Xiao, Dengfeng Peng, Xiangsheng Chen   +3 more
wiley   +1 more source

Tunable Superconductivity in BSCCO via GaP Quantum Dots. [PDF]

Materials (Basel)
Hai Q, Chen D, Bi R, Qi Y, Xun L, Li X, Zhao X.   +6 more
europepmc   +1 more source

Efficient near‐infrared light‐emitting diodes via enlarging grains of tin‐based perovskites

InfoMat, EarlyView.
In this work, penicillamine molecules are introduced into Sn‐based perovskites to slow crystallization, yielding large‐grain films with reduced grain boundaries and passivated defects. The resulting perovskite light‐emitting diodes achieve a maximum external quantum efficiency of 17.5% at 894 nm and an operational half‐lifetime of 0.95 h under current ...
Piaoyang Shen, Shuo Ding, Shaowen Chen, Chang Gu, Chaoyu Xiang   +4 more
wiley   +1 more source

Unraveling the positive effect of twisted helicene structure on narrowband electroluminescence. [PDF]

Chem Sci
Du CZ, Mai M, Gao PH, Zhao YC, Gao XY, Zhang D, Duan L, Cui C, Wang XY.   +8 more
europepmc   +1 more source

A novel n‐type dimer dopant for semiconducting polymers

Polymer International, EarlyView.
A novel molecular n‐type dopant (1) with superior capacity to dope conjugated polymers is introduced. After charge transfer the product (2) remains in the polymer. Abstract Efficient and stable doping of organic semiconductors is crucial for adjusting their electrical properties.
Andreas Opitz, Nele Merten, Vasu Malhotra, Anukul Jana, Norbert Koch   +4 more
wiley   +1 more source

Dibenzofuran‐Modulated Narrowband Red MR‐TADF Emitters for BT.2020 OLEDs With Ultralow Roll‐Off and Long Lifetime

Small, EarlyView.
A materials‐to‐device strategy enabling high‐efficiency, longer‐lifetime narrowband red OLEDs. Dibenzofuran‐integrated BNO MR‐TADF emitters provide tunable red emission (611–633 nm) with high color purity. Exciplex‐assisted PSF devices achieve 31.6% EQE, <1% roll‐off at 5000 cd m−2, and LT90 584 h @ 5000 cd/m2.
Meghana Tirupati, Nisha Vergineya S, Odugu Pavan Kumar, Aradhya Rajput, Hae Ung Kim, Jun Yun Kim, Subramanian Muruganantham, Jang Hyuk Kwon   +7 more
wiley   +1 more source

Optically Activated Superconductivity in MgB₂ via Electroluminescent GaP Inhomogeneous Phase. [PDF]

Materials (Basel)
Qi Y, Chen D, Hai Q, Li X, Zhao X.
europepmc   +1 more source

Loss Analysis of Low Bandgap (Ag,Cu)(In,Ga)Se2 Solar Cells for Tandem Applications

Small, EarlyView.
A complete loss analysis has been carried out on the state‐of‐the‐art 1.0 eV bandgap (Ag,Cu)(In,Ga)Se2 solar cells, which are of interest for tandem devices. The most significant loss mechanisms are found in the open‐circuit voltage, due to non‐radiative losses in the chalcopyrite absorber, and in the fill factor, caused by space‐charge region ...
Francesco Lodola, Sevan Gharabeiki, Maximilian Krause, Shiro Nishiwaki, Romain Carron, Susanne Siebentritt   +5 more
wiley   +1 more source

Molecularly Engineered Dual-Emission Pathways with Monomer-Excimer Interplay for Single-Component Blue and White Organic Light-Emitting Diodes. [PDF]

ACS Appl Opt Mater
Rashid EU, Suresh R, Volyniuk D, Iyer SK, Grazulevicius JV.   +4 more
europepmc   +1 more source

Mitigating Residual FAI for Air‐Stable FAPbI3 LEDs

Small, EarlyView.
Treating FAI‐rich FAPbI3 perovskite films with the multifunctional molecule DEAET, combining a protonated amine and a thiol group, effectively regulates residual surface organic‐halide species, suppresses non‐radiative recombination, and modifies interfacial energetics. The resulting near‐infrared perovskite LEDs achieve 14% external quantum efficiency
Spyros Orfanoudakis, Konstantina Yannakopoulou, Julia Morat, Leonidas Tsetseris, Polychronis Tsipas, Stefania Skorda, Alexandros El Sachat, Feng Gao, Athanassios G. Kontos, Thomas Stergiopoulos   +9 more
wiley   +1 more source