BS IEC 60747 is a series of the international standard used for semiconductor devices that have their electrical conductivities lying between that of good conductors and insulators.
BS IEC 60747‑5‑8 is one of the parts of the BS IEC 60747 series of documents that specifies the terminology and the measuring methods of various efficiencies of single light-emitting diode (LED) chips or packages without phosphor.
The efficiencies whose measuring methods are defined in this part are the power efficiency (PE), the external quantum efficiency (EQE), the voltage efficiency (VE), and the light extraction efficiency (LEE).
To measure the LEE, the measurement data of the internal quantum efficiency (IQE) is used, whose measuring method is discussed in IEC 60747-5-91 and IEC 60747-5-102. The injection efficiency (IE) and the radiative efficiency (RE) are given definitions only.
Note: White LEDs for lighting applications are out of the scope of BS IEC 60747‑5‑8.
BS IEC 60747‑5‑8 on semiconductor devices is useful for:
Optoelectronics is based on the quantum mechanical effects of light on electronic materials that consist of electronic devices useful in detecting, sourcing and controlling the light emitted from the devices.
BS IEC 60747‑5‑8 assist you in measuring the radiative and nonradiative currents in different climatic conditions.
BS IEC 60747‑5‑8 navigates you through the measurement of the power efficiency, external quantum efficiency, voltage efficiency, internal quantum efficiency, the light extraction efficiency of light-emitting diodes (LED) by applying the specified forward current in optoelectronics devices.
The measurement methods determined in BS IEC 60747‑5‑8 are helpful in measuring the current in light-emitting diodes (LED) under different climatic conditions that result in sustaining the light-emitting diodes (LED) in optoelectronics devices.
Moreover, BS IEC 60747‑5‑8 leads you in the designing of optoelectronic devices that produce light by expending electrical energy. They can also detect light and transform light signals into electrical signals for processing by a computer.
BS IEC 60747‑5‑8 specifies the measuring methods and procedures for optoelectronic efficiencies of light-emitting diodes (LED) that results in producing better quality semiconductor devices.
IEC 60747-5-61 Ed.1.0