Results 81 to 90 of about 18,522 (248)

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

A chip-based optoelectronic-oscillator frequency comb

eLight
Microresonator-based Kerr frequency combs (“Kerr microcombs”) constitute chip-scale frequency combs of broad spectral bandwidth and repetition rate ranging from gigahertz to terahertz.
Jinbao Long, Zhongkai Wang, Huanfa Peng, Wei Sun, Dengke Chen, Shichang Li, Shuyi Li, Yi-Han Luo, Jijun He, Lan Gao, Baoqi Shi, Chen Shen, Linze Li, Tianyu Long, Baile Chen, Zhenyu Li, Junqiu Liu   +16 more
doaj   +1 more source

Optical properties and charge-transfer excitations in edge-functionalized all-graphene nanojunctions

, 2011
We investigate the optical properties of edge-functionalized graphene nanosystems, focusing on the formation of junctions and charge transfer excitons. We consider a class of graphene structures which combine the main electronic features of graphene with
Alice Ruini, Baierle R. J., Barone V., Cai J., Caldas M. J., Caterina Cocchi, Cervantes-Sodi F., Chen Y.-J., Cocchi C., Deborah Prezzi, Dewar M. J. S., Elisa Molinari, Gunlycke D., Hod O., Jensen F., Jespersen K. G., Kan E.-j., Kikuzawa Y., Li Y., Loh K., Marilia J. Caldas, Naghavi S. S., Prezzi D., Prezzi D., Prezzi D., Qian H., Ren H., Ridley J., Ruini A., Seitsonen A. P., Son Y.-W., Tyutyulkov N., Wang X., Wang Z., Watson M. D., Wu J., Yang L., Zhang Q., Zheng H., Zhu X.   +39 more
core   +1 more source

Optoelectronic properties of triphenylamine based dyes for solar cell applications. A DFT study [PDF]

, 2018
Indexación: Scopus.GSM thanks to the Department of Chemistry at the Universidad Andres Bello, Concepcion, Chile. LHMH gratefully acknowledges financial support from CONACYT (Projects CB2015-257823) and to the Universidad Autónoma del Estado de Hidalgo ...
Alvarez-Romero, G.A., Bouachrine, M., Bouzzine, S.M., Fahim, Z.M.E., Hamidi, M., Hamidi, M.M., Mendoza-Huizar, L.H., Salgado-Morán, G.   +7 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Growth and optical properties of self-assembled InGaAs Quantum Posts

, 2008
We demonstrate a method to grow height controlled, dislocation-free InGaAs quantum posts (QPs) on GaAs by molecular beam epitaxy (MBE) which is confirmed by structural investigations.
He, J., Krenner, H. J., Morris, C. M., Petroff, P. M., Pryor, C., Sherwin, M. S., Wu, Y., Zhang, J. P.   +7 more
core   +1 more source

Metal‐Metal‐π Interaction: A Pathway to Construct Organic–Inorganic Excited‐State and Supramolecular Assembly

Advanced Optical Materials, EarlyView.
An organic–inorganic mixed excited state is designed and demonstrated by combining the metal–metal and π–π interactions within a supramolecular Pt2–pyrene assembly. Directional orbital overlap between the Pt and carbon atoms gives rise to a long‐lived triplet emission, strong emission polarization, exciton–exciton annihilation, and efficient exciton ...
Ying Luo, Yangbo Zhang, Ning Zhou, Xiong Wang, Ying‐Fan Tan, Wenjie Zou, Wei Lu, Qingyun Wan   +7 more
wiley   +1 more source

Photonic Microwave Waveforms Generation Based on Frequency and Time-Domain Synthesis

IEEE Access, 2018
In this paper, a novel photonic microwave waveform generation method with both frequency-domain synthesis (FDS) and time-domain synthesis (TDS) is proposed, for the first time to the best of our knowledge, by using cascaded modulation and an ...
Tingwei Wu, Chongfu Zhang, Heng Zhou, Haishan Huang, Kun Qiu   +4 more
doaj   +1 more source

Engineering the De-localized States of Graphene Quantum Dots

, 2016
Employing a combination of many-body configuration interaction method described by extended Hubbard model along with first principle calculations we predict the emergence of high oscillator strength at near-IR region which originates from the Davydov ...
Mukhopadhyay, Madhuri, Pandey, Bradraj, Pati, Swapan K   +2 more
core   +1 more source

Optoelectronic oscillator based on class AB photonic link [PDF]

, 2016
An optoelectronic oscillator topology based on a class AB analogue optical link is proposed. The motivation for this approach is based on the unique property of class AB links for mitigating both shot noise and relative intensity noise contributions. The
Charalambous, G, Hasanuzzaman, GKM, Iezekiel, S, Perentos, A   +3 more
core   +1 more source