Results 141 to 150 of about 263,472 (374)

Theory for self-sustained pulsations in semiconductor lasers

Electronics Letters, 1982
The rate equations for semiconductor lasers are extended to include carrier diffusion and combined with a field equation. A computer program is developed for both static and dynamic cases. For some current values static solutions have not been found; the dynamic calculations show that self-sustained pulsations appear in these cases.
openaire   +2 more sources

Machine‐Learning‐Aided Advanced Electrochemical Biosensors

Advanced Materials, EarlyView.
Electrochemical biosensors are highly sensitive, portable, and versatile. Advanced nanomaterials enhance their performance, while machine learning (ML) improves data analysis, minimizes interference, and optimizes sensor design. Despite progress in both fields, their combined potential in diagnostics remains underexplored.
Andrei Bocan, Roozbeh Siavash Moakhar, Carolina del Real Mata, Max Petkun, Tristan De Iure‐Grimmel, Sripadh Guptha Yedire, Hamed Shieh, Arash Khorrami Jahromi, Sahar Sadat Mahshid, Sara Mahshid   +9 more
wiley   +1 more source

Theory of defect-induced pulsations in semiconductor injection lasers [PDF]

, 1980
C. H. Henry
openalex   +1 more source

Upconversion Nanoparticle‐Covalent Organic Framework Core–shell Particles as Therapeutic Microrobots Trackable With Optoacoustic Imaging

Advanced Materials, EarlyView.
Upconversion nanoparticle‐covalent organic framework core–shell particles provide enhanced contrast for optoacoustic imaging by leveraging the optical absorption of upconversion luminescence within the covalent organic framework matrix. Beyond their role as contrast agents, these particles enable customizable therapeutic agent loading and release, as ...
Dong Wook Kim, Paul Wrede, Andrés Rodríguez‐Camargo, Yi Chen, Nihal Olcay Dogan, Chaim Glück, Bettina V. Lotsch, Daniel Razansky, Metin Sitti   +8 more
wiley   +1 more source

Advanced Air Electrodes for Reversible Protonic Ceramic Electrochemical Cells: A Comprehensive Review

Advanced Materials, EarlyView.
Reversible protonic ceramic electrochemical cells (R‐PCECs) face challenges from sluggish and unstable oxygen reduction and evolution reactions in the air electrode. This review discusses recent progress in triple‐conducting air electrodes, emphasizing mechanisms, performance factors, and design strategies, offering guidance for creating efficient and ...
Xi Chen, Yeshu Tan, Zheng Li, Tong Liu, Yinghao Song, Shuo Zhai, Na Yu, Zongping Shao, Meng Ni   +8 more
wiley   +1 more source

Glaphene: A Hybridization of 2D Silica Glass and Graphene

Advanced Materials, EarlyView.
‘Glaphene’, a novel hybrid material combining 2D silica glass and graphene, is synthesized via a scalable liquid precursor‐based vapor‐phase growth. This study reveals interlayer hybridization beyond van der Waals interactions, leading to emergent semiconducting behavior.
Sathvik Ajay Iyengar, Manoj Tripathi, Anchal Srivastava, Abhijit Biswas, Tia Gray, Mauricio Terrones, Alan B. Dalton, Marcos A. Pimenta, Robert Vajtai, Vincent Meunier, Pulickel M. Ajayan   +10 more
wiley   +1 more source

Microscopic theory of hot-carrier relaxation in semiconductor-based quantum-cascade lasers [PDF]

, 2000
Rita Claudia Iotti, Fausto Rossi
openalex   +1 more source

Phonon Driven Ferroelectricity and Raman Active Modes in Hybrid Organic‐Inorganic Perovskites

Advanced Materials, EarlyView.
Ferroelectric domains, a hallmark of ferroelectricity, are studied using temperature‐dependent Raman spectroscopy to uncover characteristic phonons associated with ferroelectric phase transitions in different n‐value HOIPs. Higher n‐value HOIP demonstrate a reduced ferroelectric switching energy barrier, providing valuable insights for optimizing ...
Chuanzhao Li, Shurong Yuan, Yixin Li, Zhenyue Wu, Yuanyuan Jin, Kian Ping Loh, Kai Leng   +6 more
wiley   +1 more source

Stabilization of N6 and N8 anionic units and 2D polynitrogen layers in high-pressure scandium polynitrides

Nature Communications
Nitrogen catenation under high pressure leads to the formation of polynitrogen compounds with potentially unique properties. The exploration of the entire spectrum of poly- and oligo-nitrogen moieties is still in its earliest stages.
Andrey Aslandukov, Alena Aslandukova, Dominique Laniel, Saiana Khandarkhaeva, Yuqing Yin, Fariia I. Akbar, Stella Chariton, Vitali Prakapenka, Eleanor Lawrence Bright, Carlotta Giacobbe, Jonathan Wright, Davide Comboni, Michael Hanfland, Natalia Dubrovinskaia, Leonid Dubrovinsky   +14 more
doaj   +1 more source

Experimentation and Analysis of Intra-Cavity Beam-Splitting Method to Enhance the Uniformity of Light in the Powersphere

Photonics
The powersphere is a spherical enclosed receiver composed of multiple photovoltaic cells. It serves as a replacement for traditional photovoltaic panels in laser wireless power transmission systems for optoelectronic conversion.
Tiefeng He, Guobing Pan, Guoliang Zheng, Zikun Xu, Zhijian Lv, Qingyang Wu, Lili Wan, Haixuan Huang, Tianyu Shi   +8 more
doaj   +1 more source