Question

OPTOELECTRONICS BASED GAS SENSORS.

Description:

Silicon photonics is a rapidly growing industry, potentially reaching an annual value of over a billion dollars in the coming decade. In parallel, the complexity of photonic integrated circuits has increased by more than an order of magnitude. The optical response of silicon at wavelengths used for telecommunications, however, is relatively weak. Current optoelectronic technologies therefore rely on integrating other materials with the desired properties. In this context, graphene has emerged as an excellent candidate to realize silicon-compatible optoelectronic devices. Graphene is an atom-thick, two-dimensional material made from carbon. It is nearly 100 times stronger than steel, conducts heat and electricity efficiently, and has unusual optical properties. Recent experimental reports have already approached the predicted performance limits of graphene-based devices. It is not obvious how the device performance can be further enhanced while simultaneously reducing device size. Thus, new paradigms in graphene-based optoelectronic devices/sensors are required. This project will develop a new approach for realizing integrated optoelectronic devices. Nanofabrication will be used to integrate graphene into active devices and engineer the effective optical properties with nm scale resolution. These devices will be fully compatible with CMOS technology and promise dramatic reductions in device footprint and losses, while providing fast-speed with low energy consumption.

Objectives:

To undertake research into the design, fabrication, and characterization of optical sensors. In particular, to development of high-performance optical gas sensors.

The question here is for Electrical and Electronic Engineering field, as a student of electrical and electronic degree, prepare a 5 slides presentation of your understanding of the project.

just show your understanding of the project.

Aim of the project The aim of this project is to apply graphene into optoelectronic technologies to increase communication speed and to overcome the bandwidth limitation (response at wavelength) found in silicon-compatible optoelectronic devices/sensors. Research Questions: • Is it possible to integrate graphene into active devices such as optoelectronic devices/sensors? What will be the main challenges? - How the telecommunication field particularly optoelectronics will be benefitted from the graphene-based devices? Programming and Methodology The objectives of the PhD project are: • Perform literature review. • Propose and develop communication algorithms using graphene-based optoelectronic device/sensor. Configure the sensing channel o The input port o Multi-layered sensing nanostructure: graphene based The output port o The appropriate active device/sensor • Perform nanofabrication to integrate graphene into the proposed active device and engineer the effective optical properties with nm scale resolution. Implement the proposed optoelectronic device is fully compatible with CMOS technology and ensures dramatic reductions in device footprint and losses, while providing fast-speed with low energy consumption. Implement the communication algorithm of the graphene-based optoelectronic device. Perform experiment in various environments to demonstrate the capability of proposed device.

explain your understanding of the topic.

Answer 1

UNDERSTANDING OF THE PROJECTS • Graphene is the excellent material to mix with silicon and make the Optoelectronic technologies applications. • Graphene will increase the communication speed and will over come the bandwidth limitation (response at wavelength). • It is possible to use this graphene into active devices such as Optoelectronic devices/ sensors. • The grapheme will make the revolution in the telecommunication field if it is used.

CHALLENGES AHEAD TO USE GRAPHENE • Writing algorithm by using graphene based optoelectronic/sensor. • Configuring of the sensing Channel input port. • Configuring of the Multilayered sensing structure. • Configuration of output port. • Usage of suitable sensor/device.

CHALLENGES AHEAD TO USE GRAPHENE • Intergration of the Nanofabrication by using the Grpahene. • Establishing or deriving the suitable optical properties. • Establishing a simple in design. • Providing lowest losses. • Providing fast-speed. • Meeting the Cost competitive.

CHALLENGES AHEAD TO USE GRAPHENE • Establishing the Communication algorithm for Graphene based opto electronic device. • Need to be tested in the different environment conditions (Such as extreme heat as well as cold). • Need financial support for Research and Development support from the Industries or Governments. • The complete research must be completed in a short span.

Future usage of Graphene • The telecommunication revolution will happen. • Application of the different industries can be meet based on their requirement. • As industry can be able to upgrade their system based on graphene if it is cost effective and reliable. • Good opportunities for Students and Industries and people.