Results 241 to 250 of about 890,794 (377)

Illustrative Apparatus for Astronomy [PDF]

, 1883
G. B. Merriman
openalex   +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

COSMICA: A Novel Dataset for Astronomical Object Detection with Evaluation Across Diverse Detection Architectures. [PDF]

J Imaging
Piratinskii E, Rabaev I.
europepmc   +1 more source

SECTION OF ASTRONOMY AND PHYSICS, OF THE NEW YORK ACADEMY OF SCIENCES, MAY 1, 1899 [PDF]

, 1899
Wm. S. Day
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

Natural experiments from Earth Hour reveal urban night sky being drastically lit up by few decorative buildings. [PDF]

Sci Rep
So CW, Pun CSJ, Liu S, Cheung SL, Hui HKK, Blumenthal K, Walker CE.   +6 more
europepmc   +1 more source

NOTES ON THE PROGRESS OF ASTRONOMY DURING THE YEAR 1894 [PDF]

, 1895
J. K. Rees
openalex   +1 more source

Bias‐Dependent Quantum Efficiency Reveals Recombination Pathways in Thin Film Solar Cells

Advanced Energy Materials, EarlyView.
Bias‐dependent external quantum‐efficiency spectra provide three characteristic “fingerprints” that reveal whether charge‐carrier loss in high‐efficiency graded CdSeTe solar cells is dominated by the front interface, the bulk absorber, or the back contact.
Abasi Abudulimu, Scott L. Wenner, Adam B. Phillips, Chungho Lee, Deng‐Bing Li, Manoj K. Jamarkattel, Zachary W. Zawisza, Sabin Neupane, Nadeesha P. Katakumbura, Tyler Brau, Scott M. Lambright, Aesha P. Patel, Vijay C. Karade, Ebin Bastola, Yanfa Yan, Michael J. Heben, Randy J. Ellingson   +16 more
wiley   +1 more source

Current scaling of the magnetoresistance peaks in the microwave radiation induced magnetoresistance oscillations. [PDF]

Sci Rep
Poudel R, Wijewardena UK, Nanayakkara TN, Kriisa A, Reichl C, Wegscheider W, Mani RG.   +6 more
europepmc   +1 more source

The Vacant Chair of Astronomy at Cambridge [PDF]

, 1892

openalex   +1 more source