Results 221 to 230 of about 800,105 (334)

Positron Beam Loading and Acceleration in the Blowout Regime of a Plasma Wakefield Accelerator. [PDF]

Research (Wash D C)
Zhou S, Ding S, An W, Su Q, Hua J, Li F, Mori WB, Joshi C, Lu W.   +8 more
europepmc   +1 more source

Transport Resistance Dominates the Fill Factor Losses in Record Organic Solar Cells

Advanced Energy Materials, EarlyView.
Organic photovoltaics are a promising solar cell technology, but even the record devices with 20% efficiency have significant fill factor losses due to low active layer conductivities. In this Perspective, the authors describe the origin of these losses, discuss experimental methods for their quantification, and explain how to minimize them to optimize
Chen Wang, Roderick C. I. MacKenzie, Uli Würfel, Dieter Neher, Thomas Kirchartz, Carsten Deibel, Maria Saladina   +6 more
wiley   +1 more source

Quasi-periodic oscillations of GHz-band polarization in a black hole. [PDF]

Nat Commun
Wang W, Chen J, Tian P, Ho LC, Sun X, Wang P, Zhang B, Zheng Z, Chen X, Zhang P, Zhu H, Yang W, Li B.   +12 more
europepmc   +1 more source

Hybrid Molecular Photoanodes for Water Oxidation Based on Electropolymerized Cu Macrocyclic Complexes on BiVO4‐WO3

Advanced Energy Materials, EarlyView.
Hybrid photoanodes based on WO3/BiVO4 and Cu‐based molecular catalysts are developed for solar water oxidation. The molecular catalyst enables efficient hole transfer and passivates recombination centers, leading to enhanced photocurrent and long‐term stability.
Carlos G. Bellido, Michele Mazzanti, Koushik Ranu, Alberto Piccioni, Raffaello Mazzaro, Federico Boscherini, Fernando F. Salomón, Sergi Grau, Xavier Sala, Luca Pasquini, Antoni Llobet, Stefano Caramori   +11 more
wiley   +1 more source

A General and Modular Approach to Solid-State Integration of Zero-Dimensional Quantum Systems. [PDF]

Nano Lett
Kavand M, Phillips Z, Koll WH, Hamilton M, Perez-Hoyos E, Greer R, Ara F, Pharis D, Maleki K, Xu M, Taniguchi T, Canfield P, Flatté ME, Freedman DE, Gupta J, Johnston-Halperin E.   +15 more
europepmc   +1 more source

Address: Delivered by the President, Dr. J. H. Jeans, on presenting the Gold Medal of the Society to Sir Frank Watson Dyson, Astronomer Royal, for his contributions to Astronomy in general, and, in particular, for his work on the Proper Motions of the Stars [PDF]

, 1925

openalex   +1 more source

Determination of Electron Extraction in Semiconductor Photoanodes: Steady‐State and Small‐Perturbation Response

Advanced Energy Materials, EarlyView.
A unified analytical model is developed to consistently interpret the steady‐state and small‐perturbation response of photoanodes, both in the time and frequency domain. By accounting for non‐ideal electron extraction and slow hole kinetics, the model explains key experimental trends in the case of a hematite photoanode and allows extraction of related
Paola Ragonese, Chiara Maurizio, Boris Kalinic, Thomas Kirchartz, Sandheep Ravishankar   +4 more
wiley   +1 more source

Magnetic and magnetotelluric data integration to determine the origin of Siwa Oasis Lakes, Western Desert, Egypt. [PDF]

Sci Rep
Aldeep M, Soliman M, Mesbah HSA, Gaweish WR, Ali AM, Meqbel N, Zaher MA.   +6 more
europepmc   +1 more source

Account of Operations connected with the Advancement of Commercial Astronomy in Australia [PDF]

R. L. J. Ellery
openalex   +1 more source

Aluminium-Surfaced Mirrors in Astronomy [PDF]

, 1934
H. Spencer Jones
openalex   +1 more source