Perylene-3,4,9,10-tetracarboxylic acid dianhydride organic layer optoelectronic coupler and manufacture method

Abstract

The invention discloses a perylene-3,4,9,10-tetracarboxylic acid dianhydride organic layer optoelectronic coupler, comprising a light emitter and a light receiver which are assembled inside one sealing metal housing; the light emitter is a GaAs infrared light emission diode chip, and the light receiver is a perylene-3,4,9,10-tetracarboxylic acid dianhydride optoelectronic detector electrode chip. The perylene-3,4,9,10-tetracarboxylic acid dianhydride optoelectronic detector electrode chip comprises a gold electrode layer, a P-Si substrate layer, a perylene-3,4,9,10-tetracarboxylic acid dianhydride single crystal film and a ITO film which are successively stacked; a nickel film layer is arranged on the surface of the ITO film layer, and an aluminum film layer is positioned on the surface of the nickel film; the nickel film and the aluminum film constitute a chip electrode which has a diameter of 50Mum; and the perylene-3,4,9,10-tetracarboxylic acid dianhydride organic optoelectronic detector chip is used as the light receiver and the GaAs infrared light emission diode is used as a light emitter. The perylene-3,4,9,10-tetracarboxylic acid dianhydride organic layer optoelectronic coupler is small in volume, good in performance, and wide in frequency band responding, the photoelectric conversion efficiency is over 98 %, which is improved by 20 % comparing with the photoelectric conversion quantum efficiency synthesizer of the optical coupler combined by the silicon photodiode and the silicon phototriode, and the production cost is 50% of the monocrystalline silicon member.

Description

technical field [0001] The invention belongs to the technical field of new semiconductor optoelectronic devices in microelectronics and optoelectronics, and specifically relates to a perylene tetracarboxylic dianhydride organic layer optical coupler, and the invention also relates to a manufacturing method of the perylene tetracarboxylic dianhydride organic layer optical coupler. Background technique [0002] Optical coupler (optical coupler, abbreviated as OC), also known as photoelectric optocoupler. It is an optical-electrical-optical conversion device that transmits electrical signals through light as a medium. The device consists of two parts, the light emitting source and the light receiver, which are assembled in the same sealed casing and separated by transparent insulators. The pin of the light emitting source is the input end, and the pin of the light receiver is the output end. Common light-emitting sources are light-emitting diodes, and light-receiving devices ...

AI Technical Summary

Problems solved by technology

In fact, an optocoupler is a current transfer device controlled by photocurrent, with a narrow linear operating range and changes with temperature; the reverse saturation current Iceo (dark current) of a semiconductor device made of single crystal silicon The influence of temperature changes is very obvious, which affects the stability and reliability of the circuit; and the photoelectric conversion efficiency of silicon photodiodes and phototransistors is not high, only 78%; and the production cost is relatively high

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