Results 21 to 30 of about 12,124 (246)

Insulating‐Passivating Interfaces for Narrow‐Bandgap Tin‐Lead Perovskites Enable High‐Photovoltage in Single‐ and Double‐Junction Solar Cells

Advanced Functional Materials, EarlyView.
Combining field‐effect surface passivation of a narrow‐bandgap tin–lead perovskite by diammonium ions with introducing oleyl‐based amphiphiles to create insulating interface layers between the absorber and the adjacent hole and electron transporting layers increases the open‐circuit voltage to 91.5% of the detailed‐balance limit and enhances the power ...
Vishnu Vijayakumar, Christ H. L. Weijtens, Laura Bellini, Nick R. M. Schipper, Isabella Taupitz, Maxim Simmonds, Johannes C. Lambooij, Anuja Vijayan, Lana M. Kessels, Simon V. Quiroz Monnens, Guus J. W. Aalbers, Willemijn H. M. Remmerswaal, Stefan C. J. Meskers, Shuaifeng Hu, Junke Wang, Martijn M. Wienk, Henry J. Snaith, Steve Albrecht, René A. J. Janssen   +18 more
wiley   +1 more source

High-Performance Hybrid Phenyl-C61-Butyric Acid Methyl Ester/Cd3P2 Nanowire Ultraviolet-Visible-Near Infrared Photodetectors

, 2014
In this work, single-crystalline p-type Cd3P2 nanowires (NWs) were synthesized on a Cd sheet via a facile chemical vapor deposition method. Then field-effect transistors and high-performance photodetectors were fabricated based on these NWs. It was found
Shen, GZ, Liu, X, Liu, Zhe, Xuming Xie, Liu, Z, Shen, Guozhen, Yu, G, Chen, Gui, Luo, Tao, Zhu, MQ, Gang Yu, Yu, Gang, Chen, D, Zhu, Mingqiang, Liang, B, Xie, Xuming, Chen, G, Mingqiang Zhu, Liang, Bo, Xie, XM, Xi Liu, Zhe Liu, Guozhen Shen, Luo, T, Gui Chen, Tao Luo, Chen, Di, Bo Liang, Liu, Xi, Fan, Zhiyong, Fan, ZY, Zhiyong Fan, Di Chen   +32 more
core   +1 more source

Shadow Economy Trends in Iran A Comparative Study Using Amos and Lisrel [PDF]

پژوهشهای اقتصادی, 2012
In this article, after defining a conceptional framework for defining and measuring shadow economy in Iran a close attention is also paid to a more precise definition of shadow economy itself.
Zahra Nasrolahi, Mohammad Reza Farzanegan, Samaneh Talei Ardakani   +2 more
doaj  

Multiple-perspective Reorganisation of the Dairy sector: Mathematical Programming Approach

Business Systems Research, 2016
Background: Agriculture is a production system in which the economic principles of organisation act in mutual dependence with its ecological boundaries.
Kocjančič Tina, Žgajnar Jaka, Juvančič Luka   +2 more
doaj   +1 more source

Sentiment Analysis of Customer Feedback in Online Food Ordering Services

Business Systems Research, 2021
Background: E-commerce websites have been established expressly as useful online communication platforms, which is rather significant. Through them, users can easily perform online transactions such as shopping or ordering food and sharing their ...
Nguyen Bang, Nguyen Van-Ho, Ho Thanh
doaj   +1 more source

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

Advanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain, Xian'e Li, Mats Fahlman, Olle Inganäs, Koen Vandewal, Feng Gao   +5 more
wiley   +1 more source

Estimating Shadow Economy and the Impact on Air Pollution in Iran [PDF]

پژوهشهای اقتصادی, 2013
Shadow economy is an important part of economy in almost all countries especially the developing ones. Most of active firms in this part of economy have negative externality on the environment.
Zahra Nasrolahi, Samaneh Talei Ardakani
doaj  

Comparison of Selected Portfolio Strategies Based on the Example of Cryptocurrency Portfolios

Studia Ekonomiczne i Regionalne, 2021
Subject and purpose of work: The purpose of this work was to compare selected portfolio strategies in terms of return rates in order to answer the question whether the method of determining the weights of the portfolio and reduction of the number of ...
Kądziołka Kinga
doaj   +1 more source

Study of the Effect of Solvent on the Conductivity of Langmuir-Schaefer Films of Poly(Fullerene)s

Materials Research, 2021
The present work aims to prepare and characterize very thin films of poly(fullerene)s in order to investigate their electrical properties and the influence of xylene and chloroform solvents on these materials.
Lucas K. M. Roncaselli, Edilene A. Silva, Hasina H. Ramanitra, Meera Stephen, André V. S. Simõis, Didier Bégué, Deuber Lincon Silva Agostini, Roger C. Hiorns, Clarissa A. Olivati   +8 more
doaj   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source