Efficiency Enhancement of Flexible Inorganic Powder Electroluminescent Devices Using the BaTiO<sub>3 </sub>-MWNT Composite Dielectric Layer

Wang, Fang-Hsing; Chen, Kuo-Feng

doi:10.1109/jdt.2016.2593938

Cited by 6 publications

(4 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Particularly, powder electroluminescent devices (PELDs) possess high potential for commercial applications because of their flat light emission and simple printing processes with low‐production cost compared with the semiconductor processes that require vacuum and plasma treatments. Flat light emission can be observed from PELDs with the paper substrate [1] as well as the plastic film [2]. Recently, PELDs have not only been observed to emit light under applied voltages, but they also produce sound [3], generate electric power through triboelectric charging by changing their structures [4], and recover their initial structure with the incorporation of self‐recovering materials such as polyacrylic acid hydrogel and polyurethane [5].…”

Section: Introductionmentioning

confidence: 99%

Enhanced electroluminescence in fully printable powder electroluminescent device with flexible invisible silver‐grid transparent electrode

et al. 2020

View full text Add to dashboard Cite

Powder electroluminescent devices (PELDs) have a high potential for commercial application because of flat light emission devices and simple printing process fabrication with low-cost production, without semiconductor processes using vacuum and plasma. In conventional PELDs, indium tin oxide (ITO) has been used as a transparent electrode. However, ITO is unfavourable in flexible electronic devices due to its intrinsic brittleness. The authors evaluated the current and luminance characteristics of PELDs prepared on gravure offset-printed invisible silver-grid (Ag-grid) electrodes that were laminated with and without poly(3,4-ethylenedioxythiophene):poly(styrenesulphonate) (PEDOT:PSS) transparent electrodes. The PELD on the Ag-grid laminated with PEDOT:PSS electrode shows the maximum luminance of ∼250 cd/m 2 at 200 μm spacing, which is five-fold greater than the luminance of PELD without PEDOT:PSS electrode lamination.

show abstract

Section: Introductionmentioning

confidence: 99%

Enhanced electroluminescence in fully printable powder electroluminescent device with flexible invisible silver‐grid transparent electrode

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Due to the high piezoelectric coefficient and simple preparation process, the PENG with PZT fillers is the superior solution to realize the large-scale fabrication for converting mechanical energy to electrical energy [30,31]. In order to achieve a high-output PENG, carbon nanotubes (CNTs) with high surface area are added to the composite materials [32][33][34][35]. However, considering the phenomenon of the soft cluster caused by the Van Der Waals interactions, the composite PENGs doped with CNTs may appear uneven dispersion parts, which could reduce the conversion ability of mechanical-electrical energy within an active energy harvesting layer.…”

Section: Introductionmentioning

confidence: 99%

High-performance stretchable PZT particles/Cu@Ag branch nanofibers composite piezoelectric nanogenerator for self-powered body motion monitoring

Zhu

Qian

Hou

et al. 2019

Smart Mater. Struct.

View full text Add to dashboard Cite

The development of stretchable nanogenerators has attracted intensive attentions for their promising applications in wearable electronics recently. Here, a newly high-performance stretchable PZT particles/Cu@Ag branch nanofibers (BNFs) nanocomposite piezoelectric generator (NCPG) is reported. The uniform mixture of PZT particles and Cu@Ag BNFs is blended into silicone rubber matrix that exhibits remarkably piezoelectric, mechanical and electrical characteristics. Owing to the similar molding method and the identical elastic matrix, the piezoelectric layer and the electrode layers could be completely integrated into stretchable NCPG based on all-in-one structure, which reveals high output performances (V peak-peak ≈61 V, I peak-peak ≈1.1 μA, 22.36 μw cm −3 ). The generated electricity is utilized to directly light five green emitting diodes (LEDs) and to drive a digital thermometer after stored in capacitor under the mechanical tensile strain stimulation. Moreover, the stretchable NCPG could act as a selfpowered body motion sensor for distinguishing the bending angles and frequencies of the knee joint. This work provides a novel design idea for stretchable nanogenerators and shows great potential applications in artificial intelligence, medical diagnosis and movement entertainment.

show abstract

“…However, recently the device including organic dye (hybrid organic–inorganic) represents a novel approach to overcome the limited choice of color. Because of this method, studies of dispersed‐type inorganic EL devices have attracted attention …”

Section: Introductionmentioning

confidence: 99%

“…Because of this method, studies of dispersed-type inorganic EL devices have attracted attention. 15,16 Although the dispersed-type inorganic EL can be prepared using a simple process, a high voltage and a high frequency are required to drive the devices. Sophisticated electric circuits are required.…”

Section: Introductionmentioning

confidence: 99%

Emission of dispersed‐type inorganic EL devices with frequency‐variable high‐voltage oscillation circuit

2018

View full text Add to dashboard Cite

Dispersed‐type inorganic electroluminescent (EL) devices composed of a transparent electrode, a phosphor, a dielectric, and a back electrode were prepared under various conditions using a zinc sulfide (ZnS)‐based phosphor. Additionally, a voltage/frequency variable circuit was designed. A compact high‐voltage/frequency variable circuit including three modules for boosting, frequency conversion, and voltage conversion was designed. A 140 Vpp voltage and a frequency in the range of 270 Hz to 2.4 kHz can be controlled by this circuit. The emission has begun to be observed at a voltage about 60 Vpp and a frequency of 400 Hz, at a voltage about 40 Vpp and a frequency of 1.4 kHz, 2.4 kHz, respectively. The emission intensity increased with an increase in frequency; emission with a wavelength of 450 nm was strongly influenced by the frequency. The luminescence and the electrical properties were affected by the preparation conditions including device structures, dispersion of ZnS:Cu, and Cl particles because of the current path generated by defects in the EL cell.

show abstract

Efficiency Enhancement of Flexible Inorganic Powder Electroluminescent Devices Using the BaTiO₃-MWNT Composite Dielectric Layer

Cited by 6 publications

References 23 publications

Enhanced electroluminescence in fully printable powder electroluminescent device with flexible invisible silver‐grid transparent electrode

Enhanced electroluminescence in fully printable powder electroluminescent device with flexible invisible silver‐grid transparent electrode

High-performance stretchable PZT particles/Cu@Ag branch nanofibers composite piezoelectric nanogenerator for self-powered body motion monitoring

Emission of dispersed‐type inorganic EL devices with frequency‐variable high‐voltage oscillation circuit

Contact Info

Product

Resources

About

Efficiency Enhancement of Flexible Inorganic Powder Electroluminescent Devices Using the BaTiO3 -MWNT Composite Dielectric Layer

Cited by 6 publications

References 23 publications

Enhanced electroluminescence in fully printable powder electroluminescent device with flexible invisible silver‐grid transparent electrode

Enhanced electroluminescence in fully printable powder electroluminescent device with flexible invisible silver‐grid transparent electrode

High-performance stretchable PZT particles/Cu@Ag branch nanofibers composite piezoelectric nanogenerator for self-powered body motion monitoring

Emission of dispersed‐type inorganic EL devices with frequency‐variable high‐voltage oscillation circuit

Contact Info

Product

Resources

About

Efficiency Enhancement of Flexible Inorganic Powder Electroluminescent Devices Using the BaTiO₃-MWNT Composite Dielectric Layer