Results 121 to 130 of about 2,244,395 (267)

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal   +9 more
wiley   +1 more source

Prevalencia de prácticas cuestionables de investigación en la sociología española: aproximación comparada a otras disciplinas y países

open access: yesmethaodos.revista de ciencias sociales
El objetivo del presente artículo es explorar la prevalencia de prácticas cuestionables de investigación (en adelante, PCI) de la sociología en España desde una perspectiva comparada con otras disciplinas y países del entorno. Para ello se hace uso de la
Daniel de Gracia Palomera   +1 more
doaj   +1 more source

Investigación acción participativa y compromiso social del arquitecto: estudio de un caso [PDF]

open access: yes, 2013
Presentamos la Investigación Acción Participativa (IAP) que hemos llevado a cabo en un barrio de las afueras de Albacete, cuyo nombre popular, “las 500”, evidencia su condición marginal (perfil social, patologías constructivas, viviendas mínimas) de ...
Gutiérrez-Mozo, María-Elia   +1 more
core   +1 more source

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

open access: yesAdvanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez   +8 more
wiley   +1 more source

Formación en Trabajo Social e investigación: una relación insoslayable de cara al siglo xxi

open access: yesTrabajo Social, 2014
El artículo aborda el papel de la investigación social en relación con el ejercicio profesional del Trabajo Social, así como con su formación.
María Rocío Cifuentes Patiño
doaj  

Desarrollo y Filantropía en el Uruguay Fundaciones: Comunitarias en Uruguay - Recursos locales para el desarrollo [PDF]

open access: yes, 2012
El presente informe es el resultado de un proceso de investigación desarrollado en el marco del proyecto Fundaciones Comunitarias en Uruguay. Dicho estudio persigue el objetivo de analizar y delinear los perfiles de la filantropía local y profundizar ...
Fabiana Hernández Abreu   +1 more
core  

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

open access: yesAdvanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal   +7 more
wiley   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

open access: yesAdvanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón   +6 more
wiley   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

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