Results 81 to 90 of about 14,594 (261)

Ultrasonication assisted thermal exfoliation of graphene-tin oxide nanocomposite material for supercapacitor

Materials Science for Energy Technologies, 2019
In this work, Graphene-SnO2 nanocomposite is synthesized by hydrothermal method for supercapacitor electrode material. The characterizations revealed that SnO2 nanoparticles exhibited tetragonal structure with an average crystalline size of ∼33 nm from ...
Sai Ram Eedulakanti, Anil Kumar Gampala, K. Venkateswara Rao, Ch. Shilpa Chakra, Venkataramana Gedela, Rajender Boddula   +5 more
doaj   +1 more source

In Situ Construction of n‐Type SnOx Interlayer by Converting Surface Sn4+ for Efficient Tin Perovskite Solar Cells

Advanced Science, EarlyView.
An n‐type SnOx layer is constructed in situ on tin perovskite surfaces by converting surface‐enriched Sn4+ species through a one‐step SnCl2·2H2O treatment. This strategy enhances interfacial charge extraction and suppresses defect‐induced degradation, boosting the power conversion efficiency from 13.21% to 16.02% while maintaining negligible efficiency
Feng Yang, Yang Yang, Kun Wang, Jingyuan Tian, Peimeng Wang, Ziyong Kang, Yang Guo, Wei Tian, Hongqiang Wang, Yu Tong   +9 more
wiley   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

Electro-oxidation of Ethanol on PtPdSn/C-Sb2O5.SnO2 Electrocatalysts Prepared by Borohydride Reduction

International Journal of Electrochemical Science, 2013
Pt/C-Sb2O5.SnO2, PtPd/C-Sb2O5.SnO2 and PtPdSn/C-Sb2O5.SnO2 electrocatalysts were prepared in a single step using H2PtCl6.6H2O, Pd(NO3)2.2H2O and SnCl2.2H2O as metal sources, sodium borohydride as reducing agent and a physical mixture of 85% Vulcan Carbon
R.M. Piasentin, R.F.B. de Souza, J.C.M. Silva, E.V. Spinacé, M.C. Santos, A.O. Neto   +5 more
doaj   +1 more source

Design Rules for Quantitative Control of Intragrain Planar Defects in Halide Perovskites

Advanced Science, EarlyView.
Dose‐budgeted electron microscopy reveals the design rules governing intragrain planar defects in halide perovskites: {112}t ferroelastic twins proliferate with increasing tetragonality and grain size, whereas {111}c twins and stacking faults emerge as the lattice approaches cubic symmetry.
Byeongjun Gil, So Jeong Park, Jin Young Kim, Miyoung Kim   +3 more
wiley   +1 more source

Effective Solvent‐Engineered All‐Inorganic CsPbI2Br Perovskite Solar Cells

Advanced Science, EarlyView.
All‐inorganic CsPbI2Br perovskite composition has gathered a lot of attention in recent years due to its thermal robustness, convenience for space applications as well as for the all‐perovskite triple junction applications as a top cell due to its wide‐bandgap (1.9 eV) nature.
Rajarshi Roy, Mahdi Malekshahi Byranvand, Tim Kodalle, Maximilian Krappel, Laxman Gouda, Stephan Boehringer, Chittaranjan Das, Mayank Kedia, Carolin M. Sutter‐Fella, Michael Saliba   +9 more
wiley   +1 more source

Preparation and Characterization of Mesoporous Activated Carbon-Supported Tin Oxide Nanocomposites from Agro-Waste (Cyperus Corymbosus Grass Stem) and its Use as a Highly Efficient Catalyst in a Three-component Reaction

Medžiagotyra
The present study reports an eco-friendly preparation of mesoporous carbon-supported tin oxide nanocomposite from agro-waste (Cyperus corymbosus grass stem). The CCSAC - SnO2 prepared by greener method successfully utilizing Cyperus corymbosus waste. The
Stanelybritto MARIA ARUL FRANCIS, Sharmil Suganya RAJAN BABU, Venugopal THIRUVENGADAM   +2 more
doaj   +1 more source

A Composite Sb-doped SnO2 Electrode Based on the TiO2 Nanotubes Prepared by Hydrothermal Synthesis

International Journal of Electrochemical Science, 2011
A hydrothermal synthesis approach was adopted to embed Sb-doped SnO2 into TiO2 nanotubes to form a three dimensional electrode(TiO2-NTs/SnO2-Sb), and it was compared with the conventionally fabricated Ti/SnO2-Sb2O5 electrode(Sb-doped SnO2 coated Ti sheet)
Hao Xu, Qian Zhang, Wei Yan, W Chu
doaj   +1 more source

MXene‐Based Room‐Temperature NO2 Gas Sensors: A Meta‐Analysis

Advanced Science, EarlyView.
This study presents the first comprehensive meta‐analysis of MXene‐based NO2 sensors, decoding 32 study characteristics across 61 peer‐reviewed studies. By isolating materials chemistry as the primary performance driver over device‐level parameters, the authors establish a methodological blueprint and a predictive structure–function map to accelerate ...
Alexander Khort, Jerome Geyer‐Klingeberg, Andreas Rathgeber, Suelen Barg   +3 more
wiley   +1 more source

Asymmetric Fluorinated Spiro Hole‐Transport Materials Enabled by a Rapid Core‐Forming Strategy for Blade‐Coated Perovskite Solar Cells

Advanced Science, EarlyView.
Facile synthesis of asymmetric fluorinated spiro‐type HTMs combined with blade‐coating fabrication and vacuum‐assisted crystallization enables high‐efficiency PSCs with PCEs of 24.49% (0.09 cm2) and 23.28% (1.00 cm2), along with excellent stability.
Kun‐Mu Lee, Xiu‐Ping Lin, Ya‐Ho Chang, Cheng‐Ting Tsai, Pei‐Chen Chu, Yu‐Hsun Chen, Wei‐Hao Chiu, Yu‐Che Lin, Sie‐Rong Li, Hsiao‐Chi Hsieh, Kang‐Ling Liau, Shih‐I. Lu, Chih‐Min Wang, Yan‐Duo Lin   +13 more
wiley   +1 more source