Results 91 to 100 of about 482,008 (283)

Reducing Open‐Circuit Voltage Losses in Wide‐Bandgap FAPbBr3 Perovskite Solar Cells for Continuous Unassisted Light‐Driven Water Splitting

Advanced Functional Materials, EarlyView.
The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini, Daniël Grosfeld, Bruno Branco, Guus J. W. Aalbers, Lana M. Kessels, Willemijn H. M. Remmerswaal, Nicolas Daub, Kunal Datta, Martijn M. Wienk, René A. J. Janssen   +9 more
wiley   +1 more source

Direct generation of genuine single-longitudinal-mode narrowband photon pairs

New Journal of Physics, 2015
The practical prospect of quantum communication and information processing relies on sophisticated single-photon pairs, which feature a controllable waveform, narrow spectrum, excellent purity, fiber compatibility, and miniaturized design.
Kai-Hong Luo, Harald Herrmann, Stephan Krapick, Benjamin Brecht, Raimund Ricken, Viktor Quiring, Hubertus Suche, Wolfgang Sohler, Christine Silberhorn   +8 more
doaj   +1 more source

Single-photon emitting diode in silicon carbide

, 2015
Electrically driven single-photon emitting devices have immediate applications in quantum cryptography, quantum computation and single-photon metrology. Mature device fabrication protocols and the recent observations of single defect systems with quantum
Bodrog, Z., Castelletto, S., Gali, A., Iwamoto, N., Johnson, B. C., Karle, T. J., Lohrmann, A., McCallum, J. C., Ohshima, T., Prawer, S.   +9 more
core   +1 more source

Laser‐Based Sculpturing of Embedded Ultrathin Metal‐Oxide Nanopores for Enhanced Biomolecular Sensing

Advanced Functional Materials, EarlyView.
Controlled laser‐drilling of embedded HfO2 membranes creates three layer nanopores with Gaussian‐shaped cavities sculptured in the supporting layers. These embedded solid‐state nanopores slow DNA translocation by 12‐fold compared to SiNx pores, enabling high‐resolution, label‐free detection of short DNAs, RNAs, and proteins.
Jostine Joby, Yulia Marom, Guocong Lin, Aleksandra Baron‐Wiechec, Amit Meller   +4 more
wiley   +1 more source

Novel single-mode narrow-band photon source of high brightness tuned to cesium D2 line

APL Photonics, 2019
Cavity-enhanced spontaneous parametric down-conversion is capable of efficient generation of single photons with suitable spectral properties for interfacing with the atoms.
Amir Moqanaki, Francesco Massa, Philip Walther   +2 more
doaj   +1 more source

Photon correlation studies of single GaN quantum dots

, 2005
We present measurements of the second-order coherence function on emission from single GaN quantum dots. In some cases a large degree of photon antibunching is observed, demonstrating isolation of a single quantum system.
Arakawa, Yasuhiko, Gotzinger, Stephan, Hoshino, Katsuyuki, Kako, Satoshi, Santori, Charles, Yamamoto, Yoshihisa   +5 more
core   +1 more source

Three‐dimensional Antimony Sulfide Based Flat Optics

Advanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang, Uwe Hübner, Anne Gärtner, Tao Chen, Joseph Köbel, Franka Jahn, Daniel Repp, Abhrodeep Dey, Henrik Schneidwind, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Matthias Zeisberger, Tanveer Ahmed Shaik, Astrid Bingel, Markus A. Schmidt, Jer‐Shing Huang, Ulf Peschel, Volker Deckert   +18 more
wiley   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Electrically-driven single-photon sources based on colloidal quantum dots with near-optimal antibunching at room temperature

Nature Communications, 2017
Single-photon sources are one of the most basic devices for quantum optical experiments and applications. Here, Lin et al. present an electrically driven single-photon source based on solution-processed colloidal quantum dots with near-optimal ...
Xing Lin, Xingliang Dai, Chaodan Pu, Yunzhou Deng, Yuan Niu, Limin Tong, Wei Fang, Yizheng Jin, Xiaogang Peng   +8 more
doaj   +1 more source

Generating Single Microwave Photons in a Circuit

, 2007
Electromagnetic signals in circuits consist of discrete photons, though conventional voltage sources can only generate classical fields with a coherent superposition of many different photon numbers.
A Blais, A Kuhn, A Wallraff, A Wallraff, A. A. Houck, B Darquie, B Lounis, B. R. Johnson, C Brunel, C Kurtsiefer, C Santori, D. I. Schuster, DI Schuster, DP DiVincenzo, DT Smithey, E Moreau, EM Purcell, F Diedrich, HJ Kimble, J McKeever, J. A. Schreier, J. M. Chow, J. M. Gambetta, J. Majer, JF Clauser, L. Frunzio, M Keller, M Oxborrow, M Pelton, M Steffen, M. H. Devoret, P Michler, R. J. Schoelkopf, S Brattke, S. M. Girvin, T Basche, U Leonhardt, V Bouchiat, X Maitre   +38 more
core   +1 more source