Results 51 to 60 of about 156,761 (319)

DESORPTION OF Te CAPPING LAYER FROM ZnTe (100): AUGER SPECTROSCOPY, LOW-ENERGY ELECTRON DIFFRACTION AND SCANNING TUNNELING MICROSCOPY

Journal of Fundamental and Applied Sciences, 2016
The influence of the annealing temperature to desorb a protective Te capping layer of the zinc telluride (ZnTe (100)) surface was investigated. The surface reconstruction of the ZnTe (100) upon the removal of a Te capping layer grown by the molecular ...
K. K. Sossoe, M. M. Dzagli, A. Sylla, B. Grandidier, A. M. Mohou, T .J. Zoueu, S. Toure   +6 more
doaj   +1 more source

Detailed comparison of injection-seeded and self-seeded performance of a 1060nm gain-switched Fabry-Perot laser diode

, 2016
We investigate and compare the performance of a gain-switched picosecond Fabry-Perot laser diode operated at 1.06 µm under both injection- and self-seeded conditions.
Malinowski, A., Richardson, D.J., Roelens, M.A.F., Vu, K.T.   +3 more
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

A DFT Investigation of Structural, Electronic, Optical, and Mechanical Properties of Lead‐Free Novel InGeX3 (X = Cl, Br, and I) Perovskites for Potential Applications in Multijunctional Solar Cells

Energy Science & Engineering
Conducting an inquiry into the structural, mechanical, electrical, and optical aspects of Ge‐based InGeX3 (Cl, Br, and I) halide perovskites using the density functional theory approach is the main objective of this study.
Md. Amran Sarker, Md. Mehedi Hasan, Sharmin Akhter Luna, Md. Imtiaz Hossain Chowdhury, Md. Rabbi Talukder, Md. Rasidul Islam, Sohail Ahmad   +6 more
doaj   +1 more source

Control of Intrinsic Defects in Lithium Niobate Single Crystal for Optoelectronic Applications

Crystals, 2017
A single crystal of lithium niobate is an important optoelectronic material. It can be grown from direct melt only in a lithium deficient non-stoichiometric form as its stoichiometric composition exhibits incongruent melting.
Rajeev Bhatt, Indranil Bhaumik, Sarveswaran Ganesamoorthy, Riscob Bright, Mohammad Soharab, Ashwini Kumar Karnal, Pradeep Kumar Gupta   +6 more
doaj   +1 more source

2D Bi₂Se₃ van der Waals Epitaxy on Mica for Optoelectronics Applications

Nanomaterials, 2020
Bi2Se3 possesses a two-dimensional layered rhombohedral crystal structure, where the quintuple layers (QLs) are covalently bonded within the layers but weakly held together by van der Waals forces between the adjacent QLs.
Shifeng Wang, Yong Li, Annie Ng, Qing Hu, Qianyu Zhou, Xin Li, Hao Liu   +6 more
doaj   +1 more source

S,N-Heteropentacenes – Syntheses of Electron-Rich Anellated Pentacycles

Organic Materials, 2021
This review summarizes syntheses of S,N-heteropentacenes, i.e. electron-rich sulfur and nitrogen-embedding pentacycles, and briefly highlights selected applications in molecular electronics. Depending on the anellation mode and the number of incorporated
Henning R. V. Berens, Thomas J. J. Müller   +1 more
doaj   +1 more source

New multiplexing scheme for monitoring fiber optic Bragg grating sensors in the coherence domain

, 1997
A new multiplexing scheme for monitoring fiber optic Bragg gratings in the coherence domain has been developed. Grating pairs with different grating distances are distributed along a fiber line, and interference between their reflections is monitored ...
Dakin, J.P., Ecke, W., Rothardt, M., Schauer, J., Usbeck, K., Willsch, R.   +5 more
core   +1 more source

Alignment-insensitive coupling for PLC-based surface mount photonics [PDF]

, 2004
A flip-chip waveguide coupler with an order of magnitude greater alignment tolerance than competing approaches is presented for the first time. Experimental data for an "optical jumper" agree with simple design considerations.
Blauvelt, Henry A., Lee, Robert B., Paslaski, Joel S., Vahala, Kerry J., Vernooy, David W.   +4 more
core   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source