Results 131 to 140 of about 1,574,076 (309)

Lyα at Cosmic Dawn with a Simulated Roman Grism Deep Field

The Astronomical Journal
The slitless grism on the Nancy Grace Roman Space Telescope will enable deep near-infrared spectroscopy over a wide field of view. We demonstrate Roman's capability to detect Ly α galaxies at z > 7 using a multiple position angle (PA) observational ...
Isak G. B. Wold, Sangeeta Malhotra, James E. Rhoads, Vithal Tilvi, Austen Gabrielpillai   +4 more
doaj   +1 more source

Prof. Percival Lowell's Contributions to Astronomical Spectroscopy [PDF]

, 1916
A. Fowler
openalex   +1 more source

Vertical Phase Separation in Blended Organic Semiconducting Films and Impact on Their Electrical and Direct X‐Ray Detection Properties

Advanced Electronic Materials, EarlyView.
The composition of blends of 1,4,8,11‐tetramethyl‐6,13‐triethylsilylethynyl pentacene (TMTES) and polystyrene (PS) to be used in Organic Field‐Effect Transistors (OFETs) is optimized to achieve and enhance thin film crystallinity and a reduced charge trap density at the semiconductor/dielectric interface.
Maria Elisabetta Giglio, Elisabetta Colantoni, Ilaria Fratelli, Carme Martinez‐Domingo, Pedro Martinez‐Zaragoza, Giulia Napolitano, Enrico Campari, Paolo Branchini, Beatrice Fraboni, Laura Basiricó, Luca Tortora, Marta Mas‐Torrent   +11 more
wiley   +1 more source

A Strategic Approach for Enhanced p‐Type Doping of WSe2 p‐MOSFETs Using an Atomic Oxidation Process

Advanced Electronic Materials, EarlyView.
A robust approach to p‐type doping in monolayer WSe2 is demonstrated using phase‐engineered WSeyOx / WSe2 / WSeyOx heterostructures formed via atomic oxidation. Self‐limited surface oxidation enables non‐destructive charge transfer doping while preserving intrinsic channel properties.
Dongjea Seo, Shivanshu Mishra, Ruixue Li, Jiaxuan Wen, Seung Gyo Jeong, Brayden Lukaskawcez, Seungjun Lee, Tony Low, Alexander S. McLeod, Bharat Jalan, Steven J. Koester   +10 more
wiley   +1 more source

Chiral Selenium‐Integrated Multi‐Resonant Thermally Activated Delayed Fluorescent Emitters Showing Improved Reverse Intersystem Crossing Rate

Angewandte Chemie, EarlyView.
The selenium‐based tBuCz‐DiKTaSe emitter containing a twisted ortho‐disposed tert‐butylcarbazole shows high ΦPL, suppressed ACQ, fast kRISC and is chiral. The OLEDs show high EQEmax and alleviated efficiency roll‐off compared to devices with carbonyl‐based MR‐TADF emitters.
Jingxiang Wang, Hassan Hafeez, Dongyang Chen, Jhon Sebastian Oviedo Ortiz, Yan Xu, Aidan P. McKay, David B. Cordes, Jeanne Crassous, Ifor D. W. Samuel, Eli Zysman‐Colman   +9 more
wiley   +2 more sources

Nonlinear Optical Imaging of Entangled Heterophase Polydomains in Ferroelectric BZT Films

Advanced Electronic Materials, EarlyView.
A non‐destructive, label‐free nonlinear optical imaging methodology is presented for the characterization of heterophase polydomains in ferroelectric materials. Through advanced second‐harmonic generation microscopy, tetragonal and rhombohedral domain structures are visualized directly, and local strain distributions in BaZr₀.₂Ti₀.₈O₃ films are ...
Piyali Maity, Hongbo Chen, Jun Ouyang, Yuhang Ren   +3 more
wiley   +1 more source

Determining Exciton Diffusion Length in Organic Semiconductors: Unifying Macro‐ and Microscopic Perspectives

Advanced Energy Materials, EarlyView.
Exciton diffusion length in organic semiconductor films is determined from encounter/annihilation rates. Non‐normalized exciton densities and proper intrinsic lifetime reference avoid over‐parametrization of the fits. Monte Carlo Simulation of individual molecule‐to‐molecule hops reproduce these results (②) when matching lattice constant and hoping ...
Wenchao Yang, Catherine S. Pursglove De Castro, Safakath Karuthedath, Yuliar Firdaus, Nisreen Alshehri, Si Chen, Diego Rosas Villalva, Christopher E. Petoukhoff, Amr Dahman, Derya Baran, Thomas D. Anthopoulos, Frédéric Laquai, Julien Gorenflot   +12 more
wiley   +1 more source

The Rockets for Extended-source X-ray Spectroscopy Instrument Design

The Astrophysical Journal
The Rockets for Extended-source X-ray Spectroscopy (tREXS) are a series of suborbital rocket payloads designed to collect spectral emission from extended astronomical sources of soft X-rays. The tREXS spectrograph uses mechanical beam-shaping modules and
Drew M. Miles, Randall L. McEntaffer, James H. Tutt, Logan Baker, Ross McCurdy, Bailey Myers, Bridget O’Meara, Joseph Weston   +7 more
doaj   +1 more source

Discerning Performance Bottlenecks of State‐of‐the‐Art Narrow Bandgap Organic Solar Cells

Advanced Energy Materials, EarlyView.
This work quantitatively discerns the loss mechanisms of state‐of‐the‐art low‐bandgap organic solar cells based on BTPV‐4X‐eC9 acceptors. Compared to PM6:Y6, geminate recombination of charge transfer (CT) states governs photocurrent losses. This relates to conformational freedom of these acceptors that restricts their aggregation, and also counteracts ...
Atul Shukla, Manasi Pranav, Guorui He, J. Terence Blaskovits, Davide Mascione, Yonglin Cao, Yufei Gong, Drew B. Riley, Julian A. Steele, Eduardo Solano, Alexander Ehm, Mohammad Saeed Shadabroo, Ardalan Armin, Safa Shoaee, Dietrich R. T. Zahn, Yongfang Li, Lei Meng, Felix Lang, Denis Andrienko, Dieter Neher   +19 more
wiley   +1 more source

Archetype-based Redshift Estimation for the Dark Energy Spectroscopic Instrument Survey

The Astronomical Journal
We present a computationally efficient galaxy archetype-based redshift estimation and spectral classification method for the Dark Energy Survey Instrument (DESI) survey.
Abhijeet Anand, Julien Guy, Stephen Bailey, John Moustakas, J. Aguilar, S. Ahlen, A. S. Bolton, A. Brodzeller, D. Brooks, T. Claybaugh, S. Cole, A. de la Macorra, Biprateep Dey, K. Fanning, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, G. Gutierrez, K. Honscheid, C. Howlett, S. Juneau, D. Kirkby, T. Kisner, A. Kremin, A. Lambert, M. Landriau, L. Le Guillou, M. Manera, A. Meisner, R. Miquel, E. Mueller, G. Niz, N. Palanque-Delabrouille, W. J. Percival, C. Poppett, F. Prada, A. Raichoor, M. Rezaie, G. Rossi, E. Sanchez, E. F. Schlafly, D. Schlegel, M. Schubnell, D. Sprayberry, G. Tarlé, C. Warner, B. A. Weaver, R. Zhou, H. Zou   +48 more
doaj   +1 more source