Results 121 to 130 of about 2,694,501 (323)

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

Advanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora, Seung Ju Choi, Jaeki Jeong, Silvia Orecchio, Inés García‐Benito, Manuel Pérez‐Escribano, Joaquín Calbo, Likai Zheng, Minseop Byun, Seyeong Song, Gi‐Hwan Kim, Shaik M. Zakeeruddin, Seog‐Young Yoon, Yimhyun Jo, Agustín Molina‐Ontoria, Enrique Ortí, Nazario Martín, Michael Grätzel   +17 more
wiley   +1 more source

Centrifugal Force Boosts Self‐Assembly of Gradient Lattice Photonic Crystals

Advanced Photonics Research
Gradient photonic crystals, compared to traditional photonic crystals, possess broader photonic bandgaps and more flexible arrangement structures. This article proposes a centrifugal force‐driven self‐assembly method for controllable construction of ...
Jingying Zhang, Xinye Wang, Yexiaotong Zhang, Jiaxing Yang, Xuelei Han   +4 more
doaj   +1 more source

Phase diagram for the transition from photonic crystals to dielectric metamaterials

, 2015
Photonic crystals and metamaterials represent two seemingly different classes of artificial electromagnetic media but often they are composed of similar structural elements arranged in periodic lattices. The important question is how to distinguish these
Belov, Pavel A., Filonov, Dmitry S., Kivshar, Yuri S., Limonov, Mikhail F., Rybin, Mikhail V., Samusev, Kirill B.   +5 more
core   +1 more source

Large three-dimensional photonic crystals based on monocrystalline liquid crystal blue phases

Nature Communications, 2017
Although there have been intense efforts to fabricate large three-dimensional photonic crystals in order to realize their full potential, the technologies developed so far are still beset with various material processing and cost issues. Conventional top-
Chun-Wei Chen, Chien-Tsung Hou, Cheng-Chang Li, H. Jau, Chun‐Ta Wang, Ching-Lang Hong, Duan-Yi Guo, Cheng‐Yu Wang, Sheng-Ping Chiang, T. Bunning, I. Khoo, Tsung-Hsien Lin   +11 more
semanticscholar   +1 more source

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

Advanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll, Ivan Pinto‐Huguet, Enzo Rotunno, Thomas Galvani, Catalina Coll, Payam Habibzadeh Kavkani, Maria Chiara Spadaro, Yann‐Michel Niquet, Martin Børstad Eriksen, Sara Martí‐Sánchez, Georgios Katsaros, Giordano Scappucci, Peter Krogstrup, Giovanni Isella, Andreu Cabot, Gonzalo Merino, Pablo Ordejón, Stephan Roche, Vincenzo Grillo, Jordi Arbiol   +19 more
wiley   +1 more source

Characterization of photonic structures using visible and infrared polarimetry

EPJ Web of Conferences, 2010
Photonic Crystals are materials with a spatial periodic variation of the refractive index on the wavelength scale. This confers these materials interesting photonic properties such as the existence of photonic bands and forbidden photon frequency ...
Kral Z., Olaizola S.M., Garcia-Caurel E., Ferré-Borrull J., Pallarès J., Marsal L.F.   +5 more
doaj   +1 more source

Fabrication of 3D Photonic Crystals toward Arbitrary Manipulation of Photons in Three Dimensions

Photonics, 2016
The creation of large-area, unintentional-defect-free three-dimensional (3D) photonic crystals in the optical regime is a key challenge toward the realization of the arbitrary 3D manipulation of photons.
Kenji Ishizaki, Katsuyoshi Suzuki, Susumu Noda   +2 more
doaj   +1 more source

Graphene-based photonic crystal

, 2010
A novel type of photonic crystal formed by embedding a periodic array of constituent stacks of alternating graphene and dielectric discs into a background dielectric medium is proposed.
Anton A. Kolesnikov, Berman, Berman, Berman, Castro Neto, Chigrin, Das Sarma, Eldada, Falkovsky, Falkovsky, Falkovsky, Gusynin, Gusynin, Joannopoulos, Joannopoulos, John, Katsnelson, Kechedzhi, Kuzmiak, Landau, Lozovik, Luk'yanchuk, McGurn, Nair, Nomura, Novoselov, Novoselov, Oleg L. Berman, Roman Ya. Kezerashvili, Taflove, Takeda, Takeda, Takeda, Tőke, Ulrich, Vladimir S. Boyko, Yablonovitch, Yurii E. Lozovik, Zhang, Zhang   +39 more
core   +1 more source

Gold Nanoparticles in Photonic Crystals Applications: A Review

Materials, 2017
This review concerns the recently emerged class of composite colloidal photonic crystals (PCs), in which gold nanoparticles (AuNPs) are included in the photonic structure.
I. Venditti
semanticscholar   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source