Results 91 to 100 of about 4,501 (228)

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

Lead‐free halide perovskites for efficient light‐emitting devices

FlexMat, EarlyView.
Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen, Kefan Meng, Yiqi Zhao, Chaoran Zhou, Jiaye Shu, Di Zhang, Chengqian Cao, Wanxin Chen, Yefeng Zhou, Weihua Ning   +9 more
wiley   +1 more source

Isostructural Analysis in Proposed Crystallization Mechanisms at the Molecular Level of Methyl 4‐bromobenzoate and Methyl 4‐iodobenzoate

Helvetica Chimica Acta, EarlyView.
Proposed molecular‐level crystallization mechanisms for halogenated aryl esters were developed based on theoretical energetic and topological data regarding intermolecular and supramolecular interactions. Energetic analysis was used to determine the hierarchy of interactions guiding supramolecular structure growth along the three axes, as well as to ...
Patrick Teixeira Campos, Isabella Burchardt Ferreira, Rubia Mara Siqueira da Silva   +2 more
wiley   +1 more source

Tin‐based perovskite light‐emitting diodes: Progress and perspective

InfoScience, EarlyView.
This review assesses tin‐based perovskite light‐emitting diodes (PeLEDs), focusing on the limitations of Sn2+ oxidation–induced defects and uncontrolled crystallization. By evaluating advanced device engineering and structural innovations, this article highlights their viability in narrowband pure‐red displays and near‐infrared optical communication ...
Wenhao Bai, Tongtong Xuan, Guanhua Ren, Ting Gong, Kunjie Song, Jiaxin Duan, Huili Li, Rong‐Jun Xie   +7 more
wiley   +1 more source

Rounded Monodisperse Fluorescent Nanodiamonds

Small, EarlyView.
Nanodiamond (ND) shape control using rapid molten‐nitrate etching is studied as a scale‐up method for monodispersed rounded particles. Optimal etching condition (567°C for 6 min) yields NDs with atomically stepped surfaces and reduced sp2 content. Compared to angular control, rounded NDs exhibit an increased proportion of luminescent particles (66% vs.
Helena Raabova, Ivan Rehor, Jan Havlik, Stuart Turner, Jan Stursa, Vladimira Petrakova, Michal Gulka, Petr Cigler   +7 more
wiley   +1 more source

Application of Micro-Tubing Reeling System to Serial Femtosecond Crystallography

Photonics
Microcrystal delivery instruments are pivotal to performing serial femtosecond crystallography experiments at the XFEL facilities. We present a novel sample delivery technique based on a micro-tubing reeling system (MRS).
Jihan Kim, Sehan Park, Yunje Cho, Jaehyun Park   +3 more
doaj   +1 more source

Emerging Aluminum‐Ion Capacitors and Lessons from Battery Chemistry

Small, EarlyView.
Al‐ion energy storage is gaining momentum as demand grows for safer, lower‐cost, and more sustainable alternatives to Li‐based technologies. Aluminum's abundance, recyclability, and trivalent charge offer high charge capacity and scalable device potential.
Smita Talande, Ievgen Obraztsov, Vishal Shrivastav, Mahima Khandelwal, Mansi, Michal Otyepka, Radek Zbořil, Aristides Bakandritsos   +7 more
wiley   +1 more source

Downsize Effect on Photocatalytic Syngas Production of a 2D Metal Organic Framework—Tuning the Selectivity From HER to CO2RR via Dimensional Modulation and Mechanical Exfoliation of 2D Metal‐Organic Layers

Small Methods, EarlyView.
A cobalt(II) 2D MOF (2D) has been downsized by covalent bond breaking to form a 1D MOF (1D) and by sonication, to form a 2D exfoliated MOF (2D‐ex). Photocatalytic CO2 reduction shows that 2D and 1D lead to H2‐enriched syngas, whereas 2D‐ex leads to CO‐enriched syngas.
Rajat Saha, Manuel Molina‐Muriel, Fernando Déniz, Mahesh Eledath Changarath, Antonio Ribera, Samia Benmansour, Juan F. Sánchez‐Royo, Josep Canet‐Ferrer, Debmalya Ray, Hermenegildo García Gómez, Carlos J. Gómez García   +10 more
wiley   +1 more source

Regulating Copper Nuclearity in Metal–Organic Frameworks for the Hydrogenation of Carbon Dioxide

Small Methods, EarlyView.
CO2 hydrogenation on Cu‐metalated MOFs at gas–solid and liquid–solid interfaces depend strongly on the nuclearity of the Cu, which can be adjusted via the density of defects and the synthesis process. In both reaction regimes, methanol formation is favored on Cu clusters rather than on isolated Cu sites, highlighting the critical role of metal ...
Soufiane Bahou, Chanokporn Kosri, Ashour A. Ahmed, Hesham Mena, Riya Sehrawat, Sebastian Wohlrab, Thanapa Numpilai, Pongtanawat Khemthong, Thongthai Witoon, Kajornsak Faungnawakij, Bunyarat Rungtaweevoranit, Ali Abdel‐Mageed   +11 more
wiley   +1 more source

Redirecting Excited‐State Proton Transfer Through Supramolecular Polymerization in Nanoconfinement

Angewandte Chemie, Volume 138, Issue 32, 3 August 2026.
Supramolecular confinement redirects the excited‐state proton transfer pathway of an amphoteric emitter. In water, the molecule undergoes ESPD, whereas co‐assembly with γ‐cyclodextrin forms nanotubes that template slip‐stacked emitter pairs and enable ESIMPT. Structural and photophysical characterization of the assemblies shows that the preorganization
Luis C. Pantaleone, Robert Hutchings, Bente Reus, Jacopo Martinelli, Alessia Lasorsa, Patrick C. A. van der Wel, Marc C. A. Stuart, Wesley R. Browne, Tibor Kudernac   +8 more
wiley   +2 more sources