Selection Guide

Quantum Efficiency

Quantum Efficiency (QE) applies to incident photon to converted electron ( IPCE ) ratio of a photosensitive device. It is defined as the number of photon has been absorbed by the photosensitive device and has converted the number of electron-hole pair. Photosensitive devices include solar cells, Photo detectors, photodiodes, charge-couple device (CCD), CMOS, etc.


Since the energy of a photon is inversely proportional to its wavelength, QE is often measured over a range of different wavelengths to characterize a device’s efficiency at each photon energy level. 

Product Selection Guide
Solar Cell / Module
Photo Detector / Photodiode
Image Sensor: CIS / CCD / CMOS
Perovskite: LED/ PV/ Film

Key words: Quantum Efficiency/ QE/ EQE/ IQE/ QE-R/ Enli Tech/ Solar cell/ photodetctor/ photodiode/ CCD/ CMOS/CIS/ image sensor