Semiconductors Are Materials That Have Properties Somewhere Between Those Of Conductors And Insulators. Due To Their Electrically Tunable Band Structure And Versatility, They Are A Key Building Block Of Modern Electronics. Functionalizing Semiconductors Allows Them To Be Used In A Wide Range Of Applications, From Displays To Solar Cells. Functionalizing Semiconductors Involves Using Chemical Treatments To Modify Their Surface Properties. This Can Involve Chemical Adsorption, Deposition Of Thin Films, Or Doping. Chemical Adsorption Is The Addition Of Molecules To The Surface Of The Semiconductor, Such As Oxide Coatings. Thin Films, Such As Polymers, Can Be Applied To The Surface Of The Semiconductor To Modify Its Properties. The Addition Of Dopants To The Semiconductor Lattice Can Also Be Used To Alter Its Conductive Properties. Functionalizing Semiconductors Can Be Used For A Variety Of Applications. It Can Be Used To Create Devices Such As Light-Emitting Diodes, Solar Cells, Display Devices, And Transistors. The Functionalized Semiconductors Can Be Used To Increase The Efficiency Or Reduce The Size Of The Device. For Example, Drug Delivery Systems Often Use Functionalized Semiconductors To Target Specific Cells. Functionalizing Semiconductors Has Made Many Technologies Possible. The Electrical And Optical Properties Of These Materials Are Easily Tuned And Can Be Used To Create A Range Of Devices And Applications. It Is A Key Component Of 21st Century Technology, And Is Likely To Be Increasingly Important In The Future.