Results 91 to 100 of about 1,544,292 (301)

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora   +17 more
wiley   +1 more source

Other title: Pooled Money Investment Portfolio

open access: yes, 2017
[Revised]; "Most Recent Annual Approval: February 22, 2017.""It is the policy of the State of Kansas, Pooled Money Investment Board...to invest the Pooled Money Investment Portfolio (which consists of moneys held in State idle funds and the Municipal ...
Kansas. Pooled Money Investment Board.
core   +1 more source

Self‐Cooling Molecular Spin Qudits

open access: yesAdvanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios   +12 more
wiley   +1 more source

Texas Workforce Investment Council Briefing Materials

open access: yes, 2017
Briefing materials compiled for a meeting of the Texas Workforce Investment Council held Friday, December 8, 2017, 8:30 a.m. at the Austin Community College Highland Business Center.
Texas Workforce Investment Council
core   +1 more source

Texas Workforce Investment Council Briefing Materials

open access: yes, 2015
Briefing materials compiled for a meeting of the Texas Workforce Investment Council held September 11, 2015 in the Highland Business Center at Austin Community College.
Texas Workforce Investment Council
core   +2 more sources

Resilience Improvement of Microgrid Cluster Systems Based on Two-Stage Robust Optimization

open access: yesEnergies
For microgrids in deep and remote sea areas, ocean currents are widely used as an emerging power generation resource. Implementing ES systems is crucial for smooth power output and grid stability.
Shui Ji, Yun Liu, Shanshan Wu, Xiao Li
doaj   +1 more source

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

Forecasting cryptocurrency volatility: a novel framework based on the evolving multiscale graph neural network

open access: yesFinancial Innovation
Cryptocurrency is a remarkable financial innovation that has affected the financial system in fundamental ways. Its increasingly complex interactions with the conventional financial market make precisely forecasting its volatility increasingly ...
Yang Zhou   +4 more
doaj   +1 more source

What drives firms' investment in climate change?

open access: yes, 2023
High energy prices in Europe and uncertainty caused by the Ukraine war are testing EU firms’ ability to invest in climate change measures. Europe urgently needs to embrace the transition to green energy, and firms will be called upon to play a pivotal
EUROPEAN INVESTMENT BANK
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

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