High-performance and moisture-resistant red-emitting Cs2SiF6:Mn4+ for high-brightness LED backlighting

2019 ◽  
Vol 7 (8) ◽  
pp. 2401-2407 ◽  
Author(s):  
Yong Liu ◽  
Zhi Zhou ◽  
Lin Huang ◽  
Mikhail G. Brik ◽  
Shuaichen Si ◽  
...  
Keyword(s):  
Low Temperature ◽  
External Quantum Efficiency ◽  
High Performance ◽  
Water Resistance ◽  
Surface Passivation ◽  
Narrow Band ◽  
High Brightness ◽  
Co Precipitation ◽  
Resistance Stability ◽  
Moisture Resistant

Narrow-band Cs2SiF6:Mn4+ phosphors with high external quantum efficiency were synthesized by a low-temperature co-precipitation approach. Moreover, the water-resistance stability of the phosphors was significantly improved by a facile surface passivation strategy.

High performance red organic electroluminescent devices based on a trivalent iridium complex with stepwise energy levels

RSC Advances ◽  
2016 ◽  
Vol 6 (75) ◽  
pp. 71282-71286 ◽  
Author(s):  
Yanan Li ◽  
Liang Zhou ◽  
Rongzhen Cui ◽  
Yunlong Jiang ◽  
Xuesen Zhao ◽  
...  
Keyword(s):  
Current Efficiency ◽  
External Quantum Efficiency ◽  
Power Efficiency ◽  
High Performance ◽  
Energy Levels ◽  
Iridium Complex ◽  
High Brightness ◽  
Electroluminescent Devices ◽  
Maximum Current ◽  
Organic Electroluminescent

Red EL device with maximum current efficiency of 44.76 cd A−1, power efficiency of 40.19 lm W−1, and external quantum efficiency (EQE) of 15.5% was realized. At high brightness of 1000 cd m−2, current efficiency as high as 40.59 cd A−1 (EQE = 14.4%) can be retained.

Non-fullerene acceptor with low energy loss and high external quantum efficiency: towards high performance polymer solar cells

2016 ◽  
Vol 4 (16) ◽  
pp. 5890-5897 ◽  
Author(s):  
Yongxi Li ◽  
Xiaodong Liu ◽  
Fu-Peng Wu ◽  
Yi Zhou ◽  
Zuo-Quan Jiang ◽  
...  
Keyword(s):  
Energy Loss ◽  
Electron Acceptor ◽  
External Quantum Efficiency ◽  
High Performance ◽  
Narrow Band ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Heterocyclic Ring ◽  
Low Energy ◽  
High Performance Polymer

We present a non-fullerene electron acceptor bearing a fused 10-heterocyclic ring with a narrow band gap, which achieved a power conversion efficiency of 6.5% when paired with PTB7-Th.

High‐Performance Flexible Perovskite Solar Cells Enabled by Low‐Temperature ALD‐Assisted Surface Passivation

2018 ◽  
Vol 6 (24) ◽  
pp. 1801153 ◽  
Author(s):  
Teng‐Yu Jin ◽  
Wei Li ◽  
Yan‐Qing Li ◽  
Yu‐Xin Luo ◽  
Yang Shen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Performance ◽  
Surface Passivation ◽  
Perovskite Solar Cells

scholarly journals RELaTED Project: New Developments on Ultra-Low Temperature District Heating Networks

Proceedings ◽  
2020 ◽  
Vol 65 (1) ◽  
pp. 25
Author(s):  
Antonio Garrido Marijuan ◽  
Roberto Garay ◽  
Mikel Lumbreras ◽  
Víctor Sánchez ◽  
Olga Macias ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Performance ◽  
Waste Heat ◽  
District Heating ◽  
Hot Water ◽  
Thermal Systems ◽  
Heating Source ◽  
Wide Range ◽  
Thermal Sources ◽  
Heating Networks

District heating networks deliver around 13% of the heating energy in the EU, being considered as a key element of the progressive decarbonization of Europe. The H2020 REnewable Low TEmperature District project (RELaTED) seeks to contribute to the energy decarbonization of these infrastructures through the development and demonstration of the following concepts: reduction in network temperature down to 50 °C, integration of renewable energies and waste heat sources with a novel substation concept, and improvement on building-integrated solar thermal systems. The coupling of renewable thermal sources with ultra-low temperature district heating (DH) allows for a bidirectional energy flow, using the DH as both thermal storage in periods of production surplus and a back-up heating source during consumption peaks. The ultra-low temperature enables the integration of a wide range of energy sources such as waste heat from industry. Furthermore, RELaTED also develops concepts concerning district heating-connected reversible heat pump systems that allow to reach adequate thermal levels for domestic hot water as well as the use of the network for district cooling with high performance. These developments will be demonstrated in four locations: Estonia, Serbia, Denmark, and Spain.

scholarly journals Silver‐Promoted High‐Performance (Ag,Cu)(In,Ga)Se 2 Thin‐Film Solar Cells Grown at Very Low Temperature

Solar RRL ◽  
2021 ◽  
pp. 2100108
Author(s):  
Shih-Chi Yang ◽  
Jordi Sastre ◽  
Maximilian Krause ◽  
Xiaoxiao Sun ◽  
Ramis Hertwig ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Low Temperature ◽  
High Performance ◽  
Thin Film Solar Cells ◽  
Very Low Temperature

scholarly journals Simultaneously Regulating Uniform Zn2+ Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Ziqi Wang ◽  
Liubing Dong ◽  
Weiyuan Huang ◽  
Hao Jia ◽  
Qinghe Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Surface Passivation ◽  
Coulombic Efficiency ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Growth Surface ◽  
Electron Conduction ◽  
Reduced Graphene ◽  
Metal Organic ◽  
Further Development

AbstractOwing to the merits of low cost, high safety and environmental benignity, rechargeable aqueous Zn-based batteries (ZBs) have gained tremendous attention in recent years. Nevertheless, the poor reversibility of Zn anodes that originates from dendrite growth, surface passivation and corrosion, severely hinders the further development of ZBs. To tackle these issues, here we report a Janus separator based on a Zn-ion conductive metal–organic framework (MOF) and reduced graphene oxide (rGO), which is able to regulate uniform Zn2+ flux and electron conduction simultaneously during battery operation. Facilitated by the MOF/rGO bifunctional interlayers, the Zn anodes demonstrate stable plating/stripping behavior (over 500 h at 1 mA cm−2), high Coulombic efficiency (99.2% at 2 mA cm−2 after 100 cycles) and reduced redox barrier. Moreover, it is also found that the Zn corrosion can be effectively retarded through diminishing the potential discrepancy on Zn surface. Such a separator engineering also saliently promotes the overall performance of Zn|MnO2 full cells, which deliver nearly 100% capacity retention after 2000 cycles at 4 A g−1 and high power density over 10 kW kg−1. This work provides a feasible route to the high-performance Zn anodes for ZBs.

scholarly journals Nanonet: Low-temperature-processed tellurium nanowire network for scalable p-type field-effect transistors and a highly sensitive phototransistor array

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Muhammad Naqi ◽  
Kyung Hwan Choi ◽  
Hocheon Yoo ◽  
Sudong Chae ◽  
Bum Jun Kim ◽  
...  
Keyword(s):  
Low Temperature ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Optical Measurements ◽  
Electrical Performance ◽  
Large Area ◽  
Nanowire Network ◽  
P Type ◽  
Nanowire Networks

AbstractLow-temperature-processed semiconductors are an emerging need for next-generation scalable electronics, and these semiconductors need to feature large-area fabrication, solution processability, high electrical performance, and wide spectral optical absorption properties. Although various strategies of low-temperature-processed n-type semiconductors have been achieved, the development of high-performance p-type semiconductors at low temperature is still limited. Here, we report a unique low-temperature-processed method to synthesize tellurium nanowire networks (Te-nanonets) over a scalable area for the fabrication of high-performance large-area p-type field-effect transistors (FETs) with uniform and stable electrical and optical properties. Maximum mobility of 4.7 cm2/Vs, an on/off current ratio of 1 × 104, and a maximum transconductance of 2.18 µS are achieved. To further demonstrate the applicability of the proposed semiconductor, the electrical performance of a Te-nanonet-based transistor array of 42 devices is also measured, revealing stable and uniform results. Finally, to broaden the applicability of p-type Te-nanonet-based FETs, optical measurements are demonstrated over a wide spectral range, revealing an exceptionally uniform optical performance.

Ionic liquid-induced low temperature graphitization of cellulose-derived biochar for high performance sodium storage

2021 ◽  
Vol 412 ◽  
pp. 127034
Author(s):  
Yang Yu ◽  
Zhuoya Ren ◽  
Qianqian Shang ◽  
Jiangang Han ◽  
Lei Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Low Temperature ◽  
High Performance ◽  
Sodium Storage
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