Results 131 to 140 of about 190,921 (304)

Multiscale Perspectives on Perovskite Instability: From Atomistic Deformation to Device Degradation in Perovskite Solar Cells

open access: yesAdvanced Energy Materials, EarlyView.
Multiscale perspectives on how excess charges in soft lead halide perovskites induce operational instability in photovoltaic devices are presented. Localized carriers formed under thermodynamic non‐equilibrium states modify atomistic interactions and drive lattice distortions, accelerating device degradation.
Joo‐Hong Lee   +6 more
wiley   +1 more source

Creating a Northern Agriculture. IV. Reservation and Preservation of Agricultural Lands in Alaska [PDF]

open access: yes, 1976
The reservation of agricultural lands is one of the most urgent, and least recognized, problems facing Alaskans today. While more than 17 million acres suitable for agricultural tillage have been identified, fewer than 20,000 acres, in widely ...
Burton, Wayne E.
core  

High‐Sublimation‐Temperature Additives for Efficient Perovskite Solar Cells via Single‐Source Evaporation

open access: yesAdvanced Energy Materials, EarlyView.
The introduction of high‐sublimation‐temperature additives during the mechanosynthesis of FAPbI3 powders enables the single‐source evaporation of phase‐pure, additive‐free FAPbI3 thin films of high optoelectronic quality. The additive‐engineered deposition process yields photovoltaic devices with stabilized efficiencies exceeding 18% for an active ...
Zongbao Zhang   +13 more
wiley   +1 more source

The Effects of Long-term Grazing Management on Vegetation and Some Soil Characteristics (A Case Study: Hamzavi Research Station in Hanna- Semirom, Isfahan)

open access: yesعلوم آب و خاک, 2019
Evaluating the possible relationships between vegetation and environmental characteristics can assist managers to identify effective factors influencing plants establishment and to characterize various vegetation communities.
M. kazemi   +3 more
doaj  

Dual Impact of Long‐Lived Localized Carriers Induced by Restricted Hole Transfer in Organic Photovoltaics and Photocatalytic Hydrogen Evolution

open access: yesAdvanced Energy Materials, EarlyView.
This work clarifies why organic semiconductors perform differently in photovoltaic devices and photocatalytic nanoparticles. By examining D18:Y5 and PM6:Y6 systems, we show how aggregation, exciton lifetime, and interfacial charge transfer behavior govern energy‐conversion pathways.
Gayoung Ham   +14 more
wiley   +1 more source

Forage Crops in Alaska [PDF]

open access: yes, 1983
The foregoing report was reprinted from Alaska’s Agriculture and Forestry, Alaska Rural Development Council Publication No. 3, and the pagination has been changed.
Klebesadel, L.J.
core  

Assessment of grazing capacity in subalpine and alpine summer pastures of Gjirokastra district

open access: yesBalkan Journal of Interdisciplinary Research
Abstract The article analyzes the summer pastures of the habitats of the Çajupi, Nëmërçka, Murgana, Trebeshina, Dhëmbeli and the Luca mountain in Southern Albania. This research aims to establish on a scientific basis the problems of livestock breeding in subalpine and alpine summer pastures in the Gjirokastra district. After determining
Sadik Malo, Lavdi Hasani
openaire   +1 more source

Synthetic Surface Design of Transparent Electrodes for Enhanced Molecular Contact in Perovskite Solar Cells

open access: yesAdvanced Energy Materials, EarlyView.
A simple solution‐based ITO surface treatment unlocks the full potential of phosphonic‐acid SAMs by balancing surface hydroxylation, conductivity, and homogeneity. Moderately hydroxylated interfaces yield uniform, electronically favourable contacts, enhancing charge extraction, stability, and thermal‐cycling resilience, with broad applicability across ...
Rik Hooijer   +18 more
wiley   +1 more source

The pattern of soil microbe metabolic limitation and carbon use efficiency was altered by light grazing in typical steppe

open access: yesGlobal Ecology and Conservation
The influence of grazing on the limiting of soil microbial metabolism is crucial for optimizing grazing management aimed at enhancing the soil's capacity for carbon sequestration in grasslands.
Yiyang Zhao   +4 more
doaj   +1 more source

Beyond Descriptor‐Based AI Design: Sp2‐Hybridized Branched Side Chains Enable Pre‐Aggregation–Driven Seeding Effects in Green‐Solvent‐Processed Organic Solar Cells

open access: yesAdvanced Energy Materials, EarlyView.
sp2‐hybridized branched side chains are introduced as a new molecular design for NFAs, YBOV, inducing strong solution‐state pre‐aggregation. This pre‐aggregation enables universal seeding motifs, highly ordered film growth, and overcoming the intrinsic current–voltage trade‐off, achieving 19.67% efficiency via green‐solvent processing beyond descriptor‐
Seokhwan Jeong   +14 more
wiley   +1 more source

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