Silicon photovoltaic cells can bring light-emitting diodes
A bias-free photochemical diode, in which a p-type photocathode is connected to an n-type photoanode to harness light for driving photoelectrochemical reduction and oxidation pairs, serves as a ...
A red-light-powered silicon nanowire biophotochemical diode for ...
A bias-free photochemical diode, in which a p-type photocathode is connected to an n-type photoanode to harness light for driving photoelectrochemical reduction and oxidation pairs, serves as a ...
Light-emitting diodes based on colloidal silicon quantum dots
Colloidal silicon quantum dots (Si QDs) hold great promise for the development of printed Si electronics. Given their novel electronic and optical properties, colloidal Si QDs have been intensively investigated for optoelectronic applications. Among all kinds of optoelectronic devices based on colloidal Si QDs, QD light-emitting diodes (LEDs) play an important role. It is …
Light Emitting Diodes
Light Emitting Diodes (LEDs) are light sources made from semiconductor devices. LEDs are gradually becoming the most popular light sources used in households, cars, and public lighting. They are … Skip to main content +- +- chrome_reader_mode Enter Reader Mode { } { } Search site. Search Search Go back to previous article. Username. Password. Sign in. Sign in. Sign in …
Absorbance measurements with light-emitting diodes as sources: Silicon ...
Two consecutive compact photodetector''s devices operating according to light-emitting diodes-solar cells concept where the LEDs acting as a light source and solar cells for measuring the ...
Recent advances in two-dimensional perovskite materials for light ...
Light-emitting diodes (LEDs) are an indispensable part of our daily life. After being studied for a few decades, this field still has some room for improvement. In this regard, perovskite materials may take the leading role. In recent years, LEDs have become a most explored topic, owing to their various applications in photodetectors, solar cells, lasers, and so …
Special Purpose P-N Junction Diodes
A solar cell or photovoltaic devices; Light-emitting diodes, photodiodes, and photovoltaic devices are known as optoelectronic junction devices. Zener Diode. Zener diode is a special type of semiconductor diode that allows current to flow in the reverse direction. It is a unique diode that is designed to conduct in the reverse direction when a certain specified voltage is reached. …
Surface plasmons for enhanced thin-film silicon solar cells and light ...
The process of coupling thin film silicon waveguide modes to plasmonic metals using unpolarised light at normal incidence is applied to silicon-based solar cells and light emitting diodes, and enhanced photocurrent and electroluminescence is realized with potential for further optimisation and improvement. The results from this study correspond to a current increase of up to 19% …
A red-light-powered silicon nanowire biophotochemical diode for ...
This photochemical diode operates bias-free under low-intensity (20 mW cm −2) red light irradiation with ~80% Faradaic efficiency for both the cathodic and anodic products. …
10.7: Diodes, LEDs and Solar Cells
Diodes are semiconductor devices that allow current to flow in only one direction. Diodes act as rectifiers in electronic circuits, and also as efficient light emitters (in LEDs) and solar cells (in …
Printed Nanostructures for Organic Photovoltaic Cells and …
We review the progress on printing-based technologies for organic electronic devices, especially organic photovoltaic (OPV) cells and polymer light-emitting diodes (PLEDs). First we discuss recent efforts to introduce interdigitated nanostructures on the order of tens of nanometers to the photoactive layers of OPV cells using nanoimprint lithography …
Lambertian light trapping in textured solar cells and light‐emitting ...
Light trapping by texturing solar cell surfaces has produced significant gains in solar cell performance over recent decades, particularly for cells based on the relatively weakly absorbing semiconductors, such as crystalline silicon and amorphous silicon–hydrogen alloys. Previous solutions for the properties of the resulting textured optical sheets have been based on …
Black Phosphorus Mid-Infrared Light-Emitting Diodes Integrated …
Light-emitting diodes (LEDs) based on III–V/II–VI materials have delivered a compelling performance in the mid-infrared (mid-IR) region, which enabled wide-ranging applications in sensing ...
(PDF) Fundamentals of Solar Cells and Light-Emitting …
This chapter focuses on introducing basic c oncepts in solar cell and light-emitting diode (LED) devices. Firstly, the fundamental knowledge about semiconductors and several important
Light trapping in thin silicon solar cells: A review on …
Thin, flexible, and efficient silicon solar cells would revolutionize the photovoltaic market and open up new opportunities for PV integration. However, as an indirect semiconductor, silicon exhibits weak absorption for …
Basics of Light Emitting diodes, Characterizations and …
PDF | On Dec 1, 2009, S.C. Singh published Basics of Light Emitting diodes, Characterizations and Applications | Find, read and cite all the research you need on ResearchGate
Small amines bring big benefits to perovskite-based solar cells …
Small amines bring big benefits to perovskite-based solar cells and light-emitting diodes Wenhuai Feng, 1Ying Tan, Meifang Yang,1 Yong Jiang,4 Bing-Xin Lei,2,*Lianzhou Wang,3 and Wu-Qiang Wu1,* SUMMARY Small amines featuring the combination of amino groups and other organic moieties have emerged as some of the most promising
8.7: Diodes, LEDs and Solar Cells
A light-emitting diode or LED is a kind of diode that converts some of the energy of electron-hole recombination into light. This radiative recombination process always occurs in competition with non-radiative recombination, in which the energy is simply converted to heat. When light is emitted from an LED, the photon energy is equal to the bandgap energy. Because of this, LED …
Metal-halide perovskites for photovoltaic and light-emitting devices
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Organic Light-Emitting Diodes with Ultrathin Emitting …
Organic light-emitting diodes (OLEDs) are promising for displays and lighting technologies because of their excellent advantages, such as high efficiency, high luminance, low power consumption, light weight, and …
Quantum Dots as Efficient Solar Energy Absorber: Review on ...
Quantum dots (QDs) have enticed the researchers, due to their unconventional optical and electronic characteristics, contributing potentially for several applications such as biomedical, sensors, and optical and electronic devices. Properties like tunable band gap, multiple exciton generation and photoluminescence make them better suited for energy devices, …
(PDF) Fundamentals of Solar Cells and Light-Emitting Diodes
PDF | On Jan 1, 2019, Feng Wang and others published Fundamentals of Solar Cells and Light-Emitting Diodes | Find, read and cite all the research you need on ResearchGate
Piezo-phototronic effect on photocatalysis, solar cells, …
In this review, the fundamental principles and challenges of representative optoelectronic materials and devices are presented, including photocatalysts (converting solar energy into chemical energy), solar cells …
Use of silane-functionalized graphene oxide in organic photovoltaic ...
Request PDF | Use of silane-functionalized graphene oxide in organic photovoltaic cells and organic light-emitting diodes | Graphene oxide (GO) and silane-functionalized GO (sGO) sheets obtained ...
Small amines bring big benefits to perovskite-based solar cells and ...
Request PDF | Small amines bring big benefits to perovskite-based solar cells and light-emitting diodes | Small amines featuring the combination of amino groups and other organic moieties have ...
Positive-feedback organic light-emitting diodes and upconverters
Organic light-emitting diodes (OLEDs) are among the most successful organic electronic devices so far. They currently dominate the mobile display market and are expanding into a broad range of ...
Small amines bring big benefits to perovskite-based solar cells …
Small amines featuring the combination of amino groups and other organic moieties have emerged as some of the most promising additives or surface ligands candidates …
Light-Emitting Diodes for Energy Harvesting
We analyzed the harvesting performance of several LEDs under diverse light sources and found that visible-emitting LEDs can reach outstanding conversion efficiencies (i.e., 39%) when operated as photovoltaic devices …
Biomass‐Derived Materials for Interface Engineering in Organic ...
using photovoltaic technologies. In this regard, extensive research efforts are being been focused on the development of new photovoltaic devices, including organic solar cells (OSCs), perovskite solar cells (PVSCs), and organic light-emitting diodes (OLEDs).1, 2 Such devices benefit from the numerous