Results 171 to 180 of about 78,935 (310)

Surface‐Plasmon‐Coupled Blue InGaN/GaN Micro‐LEDs with Oxide–Metal–Oxide Capping Layer Compatible to Chip Fabrication Process

Advanced Optical Materials, EarlyView.
A sidewall‐integrated oxide–metal–oxide architecture is demonstrated to overcome efficiency degradation in ultra‐small InGaN/GaN micro‐LEDs. Conformal Al2O3 passivation combined with plasmonic Ag nanoparticles enables localized surface plasmon–exciton coupling, converting surface‐related nonradiative losses into radiative emission.
Pil‐Kyu Jang, Lee‐Woon Jang, Ohbin Kwon, Yeong‐Hoon Cho, Sangbum Kim, Sang‐Ik Lee, Seungjae Baek, Jiwon Park, Myeongjun Choi, Jaeseung Kim, Taehwan Kim, Sung‐Un Kim, Min‐Seok Lee, Yong‐Ho Ra, Ki Hoon Nam, Seung Min Kwak, Alexander Y. Polyakov, In‐Hwan Lee   +17 more
wiley   +1 more source

High aspect ratio organic light-emitting diodes. [PDF]

Nat Commun
Wang B, Kotadiya NB, Kim T, Mashack R, Comfort D, Huang C, Arneson CE, Kondakova M, Giebink NC, Shtein M.   +9 more
europepmc   +1 more source

Bridging Boltzmann and Non‐Boltzmann Optical Thermometry Enabled by Multimodal Perovskite Nanocrystals

Advanced Optical Materials, EarlyView.
Multimodal perovskite nanocrystals enable optical thermometry across multiple excitation and emission regimes, spanning the UV–Vis–NIR spectral range. By combining upconversion, downshifting, and persistent luminescence, the platform bridges conventional Boltzmann and non‐Boltzmann thermometric approaches.
Adrian Drozdowski, Kevin Soler‐Carracedo, Tomasz Grzyb   +2 more
wiley   +1 more source

High efficiency, high color purity red micro-light-emitting diodes. [PDF]

Light Sci Appl
Wu Y, Xiao Y, Reddeppa M, Malhotra Y, Guo Y, Xiao J, Liu J, Wang D, Sun K, Mi Z.   +9 more
europepmc   +1 more source

Neodymium‐Doped Nanocrystals for Sensing Cellular Temperature at the Nanoscale

Advanced Optical Materials, EarlyView.
Neodymium‐doped NaYF4 nanocrystals are engineered as bright, biocompatible nanothermometers for intracellular temperature mapping. Their ratiometric near‐infrared emission enables highly sensitive, nanoscale thermal readouts in living cells. Combined with gold nanostars for photothermal therapy, they reveal pronounced subcellular heating heterogeneity ...
Maria Bravo, Sandra Krzyzowska, Shelly Yang, Dingchen Wen, Jana Zielinski, Farsai Taemaitree, Samantha Zaman, Alastair Stewart, Susana Rocha, Paul Mulvaney, Hiroshi Uji‐i, Beatrice Fortuni, Sam Brooke, James Hutchison   +13 more
wiley   +1 more source

Vapor-deposited copper iodide cluster-based light-emitting diodes for pico-projector. [PDF]

Sci Adv
Luo Y, Yang L, Zhang X, Ou J, Wang F, Tang J, Luo J.   +6 more
europepmc   +1 more source

Red Fluorescent Protein‐Metal Organic Framework Hybrids for Lighting Applications

Advanced Optical Materials, EarlyView.
We demonstrate the encapsulation in a metal‐organic framework (MOF) of two red fluorescent proteins, DsRed and mCherry. The materials conserve all spectroscopical and structural properties of the underlying components, which allows for their implementation as color down‐converting materials in bio‐hybrid light‐emitting diodes, which exhibit average 3 ...
David Gutiérrez‐Armayor, Youssef Atoini, Rubén D. Costa   +2 more
wiley   +1 more source

Epitaxial n-ZnO/MoS₂/p-GaN Heterostructure Light-Emitting Diodes. [PDF]

Nano Lett
Rahmatulloh I, Dalayoan DJC, Ali A, Shin S, Nguyen ATD, Kwon T, Behera S, Lee J, Kim H, Jeong HY, Namgung S, Yi GC, Chung K.   +12 more
europepmc   +1 more source

When Cubic is Not Isotropic: Phonon–Exciton Decoupling in CuInSnS4 Single Crystals

Advanced Optical Materials, EarlyView.
A cubic CuInSnS4 crystal does not fully play by cubic rules. While phonons follow the average iso‐tropic lattice symmetry, the disorder‐localized excitons break away, showing strong, and reproduci‐ble polarization‐dependent emission. This work shows how intrinsic cation disorder can turn a mac‐roscopically cubic material into a source of hidden ...
Lara Kim Linke, Yvonne Tomm, Xinyun Liu, Galina Gurieva, Daniel M. Többens, Pardis Adams, Michel Calame, Ryan W. Crisp, Jessica Boland, Seán Kavanagh, Susan Schorr, Mirjana Dimitrievska   +11 more
wiley   +1 more source

High-performance thermally-evaporated light-emitting diodes via one-step vapor purification. [PDF]

Light Sci Appl
Zhang X, Wu Y, Ou J, Shen Z, Liu N, Alshahrani T, Mohd Yusoff ARB, Tang J, Luo J.   +8 more
europepmc   +1 more source