Results 41 to 50 of about 333,012 (300)

Decoupling the Impact of Deep‐Trap and Band‐Tail States on PbS Quantum Dot Photodetectors via Alkylamine Engineering

open access: yesAdvanced Materials Technologies, EarlyView.
Band‐tail and deep trap states are effectively disentangled through the use of selective alkylamine additives. PA‐driven 2D ordering narrows band tails, while HA enhances halide passivation and Pb coordination to suppress deep traps. A comparative study of their CQD short‐wave infrared (SWIR) photodetectors further reveals whether band‐tail states or ...
Huaying Zhong   +14 more
wiley   +1 more source

Sustainability science requires a critical orientation [PDF]

open access: yes, 2013
Die Wissenschaft steht unter Druck. In Zeiten, in denen es um nichts Geringeres geht als um die Transformation hin zu einer nachhaltigen Entwicklung, fordern Gesellschaft und Politik von ihr nicht nur gesichertes, sondern vor allem anwendbares Wissen. Um
Jahn, Thomas
core  

Electronic Structure Reorganization in MPS3 via d‐Shell‐Selective Alkali Metal Doping

open access: yesAdvanced Science, EarlyView.
Alkali metal doping of layered MPS3 antiferromagnets reveals d‐shell‐selective responses. While MnPS3 resists charge transfer due to its half‐filled 3d5 shell, FePS3 and NiPS3 behave similarly to CoPS3 by accommodating extra d‐electrons. Yet only CoPS3, with its least stable d‐shell, undergoes pronounced band restructuring and a semiconducting‐to ...
Jonah Elias Nitschke   +12 more
wiley   +1 more source

Bibliography of Structuralism III [PDF]

open access: yes, 2013
In two occasions a Bibliography of Structuralism has been published in Erkenntnis (1989, 1994). Since then a lot of water has flowed under the bridge and the structuralist program has shown a continuous development. The aim of the present bibliography is
Abreu, Cláudio   +2 more
core  

Printable Conductive Hydrogels for Electrochemical Biosensing and Soft Bioelectronic Interfaces

open access: yesAdvanced Science, EarlyView.
Flexible, conductive hydrogels that integrate printability, mechanical tunability, biocompatibility, and electronic performance remain challenging to achieve. Here, we develop 3D‐printable poly(ethylene glycol)–poly(pyrrole)‐ hydrogels with tissue‐like mechanics, high cytocompatibility, and robust electrochemical function.
Lukas Hein   +6 more
wiley   +1 more source

Degradation Mechanisms Associated with Electron‐Blocking Layers in Inverted Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
The effects of the three typical EBLs NiOx, PTAA, and 2PACz on the photovoltaic performance and degradation mechanisms are investigated under light soaking and solar‐thermal cycling conditions of corresponding PSCs, demonstrating that 2PACz is the best EBL due to the better interface contact and lower lattice distortion.
Xiongzhuo Jiang   +9 more
wiley   +1 more source

Lentil-barley mixed cropping with different lentil varieties and sowing dates [PDF]

open access: yes, 2011
In den letzten 50 Jahren gab es nahezu keinen Linsenanbau mehr in Deutschland. Die Stickstofffixierung der Leguminose Linse, der Mischanbau und die hohe ernährungsphysiologische Wertigkeit machen den Linsenanbau attraktiv für den ökologischen Landbau ...
Claupein, Wilhelm   +2 more
core  

Enhancing Li‐S Battery Performance Through Low‐Concentration Electrolytes with Organic Se/Te Co‐Additives to Address Solubility and Kinetic Challenges

open access: yesAdvanced Science, EarlyView.
This work presents a low‐concentration electrolyte enabled by hybrid organic Se/Te additives (DPDSe/DPDTe) that restructures solvation, boosts polysulfide dissolution, and provides dual‐site synergistic catalysis, delivering high capacity and stable cycling in Li–S coin and pouch cells, supporting high‐energy, high‐power operation.
Ruihua Li   +10 more
wiley   +1 more source

Discovery of a Plant Pictet–Spenglerase With R‐Stereoselectivity

open access: yesAngewandte Chemie, EarlyView.
Strictosidine synthases (STRs) are plant Pictet–Spenglerases catalyzing the coupling of a secoiridoid with tryptamine. All previously characterized strictosidine synthases are strictly S‐selective. Here, we report the discovery of Epi‐STR, an R‐selective STR ortholog from the medicinal plant Pogonopus speciosus.
Clara Morweiser   +3 more
wiley   +2 more sources

Profilierung der Dokumentarischen Methode für das Forschende Lernen im Praxissemester am Beispiel einer Erhebung Subjektiver Theorien von Geschichtslehrenden

open access: yesHerausforderung Lehrer*innenbildung, 2018
Im Praxissemester wird die Gefahr eines „Imitationslernen[s] unterrichtspraktischer Fertigkeiten“ (Bach, 2013, S. 123) durch die in forschender Grundhaltung zu bewältigenden Studienprojekte gebannt.
Lukas Greven
doaj   +3 more sources

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