scholarly journals Development and Empirical Investigation of a Self-Powered UV Detector Based-Microcontroller

2018 ◽  
Vol 26 (3) ◽  
pp. 318-327
Author(s):  
Haider Al-Mumen
Keyword(s):  
Low Cost ◽  
Ultra Violet ◽  
Fast Response ◽  
Nano Particles ◽  
Core Material ◽  
Uv Detector ◽  
Dye Sensitized ◽  
Color Sensors ◽  
Self Powered ◽  
Sustainable Power

Titanium dioxide Nano particles have been used as a core material for the design of low-cost sustainable power source, the dye sensitized cell. In this work, dye sensitized cell was investigated to be used as a self-powered ultra violet light detector in a data acquisition system. To enhance the detector robustness, the device was sealed using cross-linked photo resist to isolate it from the environmental effects. The detector was tested in air as well as in water to proof its characteristics in various environmental conditions. High responsivity and fast response were achieved for both discrete and continuous ultraviolet (UV) illuminations. To prove the self-powered property of the sensor, it was interfaced to a microcontroller. Our experimental results confirmed that there is no need of intermediate electronics such as signal conditioning in the interfacing circuit. Furthermore, the detector observed obvious selectivity for different light colors. This characteristic makes it candidate for the development of color sensors.

scholarly journals Hierarchically patterned self-powered sensors for multifunctional tactile sensing

2020 ◽  
Vol 6 (34) ◽  
pp. eabb9083 ◽  
Author(s):  
Yang Wang ◽  
Heting Wu ◽  
Lin Xu ◽  
Hainan Zhang ◽  
Ya Yang ◽  
...  
Keyword(s):  
Low Cost ◽  
Fast Response ◽  
Temperature Sensors ◽  
Physical Contact ◽  
Tactile Sensing ◽  
Material Identification ◽  
Flexible Sensors ◽  
Temperature Stimulus ◽  
Self Powered ◽  
Multifunctional Sensor

Flexible sensors are highly desirable for tactile sensing and wearable devices. Previous researches of smart elements have focused on flexible pressure or temperature sensors. However, realizing material identification remains a challenge. Here, we report a multifunctional sensor composed of hydrophobic films and graphene/polydimethylsiloxane sponges. By engineering and optimizing sponges, the fabricated sensor exhibits a high-pressure sensitivity of >15.22 per kilopascal, a fast response time of <74 millisecond, and a high stability over >3000 cycles. In the case of temperature stimulus, the sensor exhibits a temperature-sensing resolution of 1 kelvin via the thermoelectric effect. The sensor can generate output voltage signals after physical contact with different flat materials based on contact-induced electrification. The corresponding signals can be, in turn, used to infer material properties. This multifunctional sensor is excellent in its low cost and material identification, which provides a design concept for meeting the challenges in functional electronics.

The enhancement of a self-powered UV photodetector based on vertically aligned Ag-modified ZnO nanowires

RSC Advances ◽  
2015 ◽  
Vol 5 (82) ◽  
pp. 66738-66741 ◽  
Author(s):  
Yiyu Zeng ◽  
Xinhua Pan ◽  
Wen Dai ◽  
Yunchao Chen ◽  
Zhizhen Ye
Keyword(s):  
Response Time ◽  
Fast Response ◽  
Zno Nanowires ◽  
Uv Detection ◽  
Ag Nanoparticle ◽  
Uv Detector ◽  
Excellent Performance ◽  
Uv Photodetector ◽  
Vertically Aligned ◽  
Self Powered

A Ag nanoparticle-modified ZnO NWs based UV detector displays an excellent performance in UV detection such as high responsivity and fast response time.

scholarly journals A self-powered, flexible ultra-thin Si/ZnO nanowire photodetector as full-spectrum optical sensor and pyroelectric nanogenerator

2020 ◽  
Vol 11 ◽  
pp. 1623-1630
Author(s):  
Liang Chen ◽  
Jianqi Dong ◽  
Miao He ◽  
Xingfu Wang
Keyword(s):  
Optical Sensor ◽  
High Performance ◽  
Near Infrared ◽  
Low Cost ◽  
Short Circuit ◽  
Fast Response ◽  
Zno Nanowire ◽  
Working Mechanism ◽  
Full Spectrum ◽  
Self Powered

In this work, a new type of self-powered, high-performance ultra-thin p-Si/n-ZnO nanowire (NW) flexible photodetector (PD) and its application as full-spectrum optical sensor and pyroelectric nanogenerator (PENG) are demonstrated. The working mechanism of PDs for PENGs is carefully investigated and systematically analyzed. The self-powered PDs exhibit high responsivity (1200 mA/W), high detectivity (1013 Jones) and fast response (τr = 18 μs, τf = 25 μs) under UV illumination. High and stable short-circuit output currents at each wavelength from ultraviolet (UV) to near-infrared (NIR) demonstrates that the device can realize full-spectrum optical communication. An experiment in which the PENG powers other devices is designed to further demonstrate the proposed working mechanism. This work provides an effective approach to realize self-powered, high-performance PDs for full-spectrum communication. Also, the fabrication of the PENG utilizing a simple and low-cost method shows its potential applications in self-powered flexible electronic devices.

POTENTIAL EVALUATION OF YELLOW COTTON (COCHLOSPERMUM REGIUM) PIGMENTS FOR DYE SENSITIZED SOLAR CELLS APPLICATION

2020 ◽  
pp. 16-21
Author(s):  
PHITCHAPHORN KHAMMEE ◽  
YUWALEE UNPAPROM ◽  
UBONWAN SUBHASAEN ◽  
RAMESHPRABU RAMARAJ
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Plant Materials ◽  
Natural Pigments ◽  
Dye Sensitized ◽  
Study Results ◽  
Sensitized Solar Cells

Recently, dye-sensitized solar cells (DSSC) have concerned significant attention attributable to their material preparation process, architectural and environmental compatibility, also low cost and effective photoelectric conversion efficiency. Therefore, this study aimed to use potential plant materials for DSSC. This research presents the extraction of natural pigments from yellow cotton flowers (Cochlospermum regium). In addition, the natural pigments were revealed that outstanding advantages, including a wide absorption range (visible light), easy extraction method, safe, innocuous pigments, inexpensive, complete biodegradation and ecofriendly. Methanol was used as a solvent extraction for the yellow cotton flower. The chlorophylls and carotenoid pigments extractions were estimated by a UV-visible spectrometer. The chlorophyll-a, chlorophyll-b, and carotenoid yield were 0.719±0.061 µg/ml, 1.484±0.107 µg/ml and 7.743±0.141 µg/ml, respectively. Thus, this study results suggested that yellow cotton flowers containing reasonable amounts appealable in the DSSC production.

Scalable fabrication of in-plane microscale self-powered integrated systems for fast-response and highly selective dual-channel gas detection

Nano Energy ◽  
2021 ◽  
pp. 106253
Author(s):  
Xiaoyu Shi ◽  
Junyu Chang ◽  
Jieqiong Qin ◽  
Hanqing Liu ◽  
Xiong Zhang ◽  
...  
Keyword(s):  
Fast Response ◽  
Gas Detection ◽  
Integrated Systems ◽  
Dual Channel ◽  
Self Powered

scholarly journals Dye-Sensitized Solar Cell for Indoor Applications: A Mini-Review

2021 ◽  
Author(s):  
Dheeraj Devadiga ◽  
M. Selvakumar ◽  
Prakasha Shetty ◽  
M. S. Santosh
Keyword(s):  
Solar Cell ◽  
Dye Sensitized Solar Cell ◽  
Low Light ◽  
Dye Sensitized ◽  
Energy Demands ◽  
Roll To Roll ◽  
Wearable Systems ◽  
Recent Developments ◽  
Sustainable Power ◽  
The Internet Of Things

AbstractLightweight computing technologies such as the Internet of Things and flexible wearable systems have penetrated our everyday lives exponentially in recent years. Without a question, the running of such electronic devices is a major energy problem. Generally, these devices need power within the range of microwatts and operate mostly indoors. Thus, it is appropriate to have a self-sustainable power source, such as the photovoltaic (PV) cell, which can harvest indoor light. Among other PV cells, the dye-sensitized solar cell (DSSC) has immense capacity to satisfy the energy demands of most indoor electronics, making it a very attractive power candidates because of its many benefits such as readily available materials, relatively cheap manufacturing methods, roll-to-roll compatibility, easy processing capabilities on flexible substrates and exceptional diffuse/low-light performance. This review discusses the recent developments in DSSC materials for its indoor applications. Ultimately, the perspective on this topic is presented after summing up the current progress of the research. Graphic abstract

Mesoporous Bi2S3 nanorods with graphene-assistance as low-cost counter-electrode materials in dye-sensitized solar cells

Nanoscale ◽  
2014 ◽  
Vol 6 (23) ◽  
pp. 14433-14440 ◽  
Author(s):  
Sheng-qi Guo ◽  
Tian-zeng Jing ◽  
Xiao Zhang ◽  
Xiao-bing Yang ◽  
Zhi-hao Yuan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Counter Electrode ◽  
Electrode Materials ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Hydrothermal Conditions ◽  
Catalytic Activities ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In this work, we report the synthesis of mesoporous Bi2S3 nanorods under hydrothermal conditions without additives, and investigated their catalytic activities as the CE in DSCs by I–V curves and tested conversion efficiency.

scholarly journals A single layer deposition of Li-doped mesoporous TiO2 beads for low-cost and efficient dye-sensitized solar cells

2021 ◽  
Vol 45 (5) ◽  
pp. 2470-2477
Author(s):  
P. Golvari ◽  
E. Nouri ◽  
N. Mohsenzadegan ◽  
M. R. Mohammadi ◽  
S. O. Martinez-Chapa
Keyword(s):  
Light Scattering ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Single Layer ◽  
Cost Effective ◽  
Mesoporous Tio2 ◽  
Trap States ◽  
Dye Sensitized ◽  
Layer Deposition ◽  
Sensitized Solar Cells

Cost-effective DSCs with superior electronic properties are gained by a reduction in electronic trap states and outstanding light scattering and harvesting.

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