What material are RGB trichromatic LEDs generally made of?

The three primary colors are red, green, and blue.

In the case of light-emitting diodes, the material determines the radiation wavelength of fluorescence, and gallium arsenide (red), gallium phosphide (green), and gallium nitride (blue) are commonly used

There are red, yellow, green, blue, etc., and there are three types of commonly used packaging forms

According to the luminous color of the light-emitting return tube, it can be divided into red

The colors are red, yellow, green, blue, etc., which are commonly used.

There are three types of BAI package DU types.

According to the luminous color of the fluorescent tube, it can be divided into red, orange, green (subdivided into yellow-green, standard green and pure green), blue light, white light, etc. In addition, some light-emitting diodes contain two or three colors of chips.

According to the light output of the light-emitting diode with or without scattering agent, colored or colorless, the light-emitting diodes of the above colors can also be divided into four types: colored transparent, colorless transparent, colored scattering and colorless scattering. Scattering type light-emitting diode and up to be used as an indicator light.

Diode: Diode, also known as crystal diode, referred to as diode, in addition, there are early vacuum electron diodes; It is an electronic device that conducts current in one direction. Inside the semiconductor diode, there is a PN junction with two lead terminals, and this electronic device has the conductivity of unidirectional current according to the direction of the applied voltage.

Generally speaking, a crystal diode is a p-n junction interface formed by the sintering of p-type semiconductors and n-type semiconductors. A space charge layer is formed on both sides of its interface, which constitutes a self-built electric field. When the applied voltage is equal to zero, the diffusion current caused by the concentration difference between the carriers on both sides of the p-n junction and the drift current caused by the self-created electric field are equal and are in an equilibrium state, which is also a diode characteristic under normal conditions.

Semiconductor diodes are used in almost all electronic circuits, which play an important role in many circuits and are also widely used.

Well, you see where it's used. I don't know much about this either, so you should ask the EC Lianmeng technicians, they are very patient.

The object that is easy to conduct electricity is a conductor, and the object that is not easy to conduct electricity is an insulator, there is no absolute boundary between the conductor and the insulator, and the conductor performance is between the two is the semiconductor diode is characterized by unidirectional conductivity, and the main material used is the semiconductor

So the answer is: semiconductor materials; One-way conduction

LED light-emitting diodes have a positive and negative pole, with the long pin being positive and the short pin being negative. The so-called diode is a semiconductor device with unidirectional conductivity with cathode and anode, the negative electrode of the cathode is an N-type semiconductor material, the positive electrode of the anode is a P-type semiconductor material, the current can only flow from the positive electrode to the negative electrode, to make this PN junction conductive, it is necessary to apply a positive voltage and a positive current at both ends of its positive electrode and the negative electrode, and the positive voltage must be greater than or equal to its positive (PN junction) junction voltage drop, that is, the on-voltage vf, the single on-voltage vf of various colors LED light-emitting diodes is different, The red on-voltage vf is the lowest, approximately, and the rated working current is 5-10 mA. The white LED light-emitting diode for lighting has the highest on-voltage VF, because it is synthesized by the three primary colors of RGB red, green, and blue.

The rated working current is from tens of milliamperes to more than 100 milliamps. The better the manufacturing process, the smaller the rated operating current. When detecting an LED light-emitting diode, the forward voltage of the measured power supply output should first be equal to or slightly greater than its forward (p-n-junction) junction voltage drop, and the current should not exceed its rated forward current.

The simple measurement method can be measured with a pointer multimeter with two batteries inside by 1 ohm, for the LED light-emitting diode for lighting with a greater than 3V on-voltage test, a dry battery can be connected in series in the multimeter pen meter, the positive pole of the battery is connected to the red multimeter pen, the negative pole of the battery is connected to the negative pole of the LED light-emitting diode, and the black meter pen of the multimeter is connected to the positive pole of the LED light-emitting diode, so that the LED light-emitting diode can be seen to shine normally.

Light-emitting diodes have unidirectional conductivity, and the main material is semiconductors

So the answer is: one-way; Semiconductors

It is known from the common sense of physics that light-emitting diodes made of semiconductor materials have unidirectional conductivity

So the answer is: semiconductors; One-way conduction

White, blue, and so on.