Wichita State University Engineering Question Organic LED (OLED)
Project Topics 1 & 2 : (1). Light Emitting Diode (LED) & (2). Organic LED (OLED) – Semiconductor To Be Addressed (not limited to): • How LED or OLED works? • Materials selections for LED or OLED? • Comparison between LED (or OLED) and other types of light sources • Current issues/Challenges in LED or OLED The project paper should cover following (Grading template): • How does LED or OLED work? (40%) – How to convert electricity to light? a. What is semiconductor? b. What is n-type semiconductor and p-type semiconductor, respectively ? c. What is a p-n junction? d. How does a p-n junction convert electricity to light? • Materials selections for LED or OLED? (20%) a. What semiconductor materials have been used in fabricating LED or OLED? b. How do materials (composition and structures) affect the colors of LED light? c. How does materials selection affect other performances of LED light? (Optional) • Comparison between LED (OLED) and other types of light sources (15%) a. Compare LED and OLED; OR b. Compare LED and other light sources using electricity, such as Incandescent Bulbs and Fluorescent light. • Current issues/Challenges in LED or OLED (15%) a. Discuss at least on existing issue or challenge in current LED or OLED technology, and possible solutions • Abstract (5%) • Format (5%: See syllabus) Project Topic 3: Superconductors -Magnetism To Be Addressed (not limited to): • What is superconducting phenomenon? • How superconductivity relates to magnetic properties? • Compare Type I and Type II superconductors • Applications of superconductors Superconductor Rings? The project paper should cover following (Grading template): • What is superconducting phenomenon? (30%) a. Describe superconducting phenomenon? b. How to achieve superconductivity? c. Effects of Temperature and Current Density on superconductivity? d. BCS theory of superconductivity. (optional) •How superconductivity relates to magnetic properties? (30%) a. What is the origin of magnetic property? Its relationships with electrical current? b. Classify different magnetisms, and discuss diamagnetism in details. • Compare Type I and Type II superconductors (20%) a. Materials selections for both types b. Temperature dependences of both types • Applications of Superconductors (10 %) a. Discuss at least one existing or potential application of superconductors • Abstract (5%) • Format (5%: See syllabus) Project Topic 4: Invisible Cloaks (Metamaterials) – Dielectric and Magnetic Properties To Be Addressed (not limited to): • What are metamaterials? • Unique dielectric and magnetic properties in metamaterials • Applications of metamaterials The project paper should cover following (Grading template): • What are metamaterials? (20%) Metamaterials do not naturally exist, and they exhibit several unique optical and electronic properties that are either superior to natural materials, or not existing in nature . a.Describe at least 2 unique optical and/or electronic properties in metamaterials with brief discussion in comparison with natural materials. b. What materials can be used to fabricate metamaterials? c. What kinds of artificial structures are usually created in metamaterials? • Unique dielectric and magnetic properties in metamaterials? (50%) a. Discuss dielectric properties: four dielectric polarization mechanisms b. Discuss five magnetisms c.What properties exist in metamaterials? What types of materials have such properties? • Applications of Metamaterials (20 %) a.In terms of the two unique properties addressed earlier, discuss their potential/existing applications. • Abstract (5%) • Format (5%: See syllabus) Project Topic 5: Dielectric Materials and Electrical Insulation –Dielectric and Electrical Properties To Be Addressed (not limited to): • Dielectric properties • What is electrical breakdown phenomenon? • Applications of dielectric materials/electrical insulators. The project paper should cover following (Grading template): • Dielectric properties (30%) a. What is dielectric polarization phenomenon? b. Discuss four different dielectric polarization mechanisms c. Discuss dielectric constant and dielectric loss. • What is electrical breakdown phenomenon? (30%) a. What is electrical breakdown? b. Potential risks in different applications, and materials typically selected for electrical insulation c. Discuss at least three factors responsible for electrical breakdown. • Applications of dielectric materials/insulators (30 %) Pick one polymeric and one ceramic dielectric material/insulator, respectively, and address in detail: a. Their structures and dielectric properties b.At least one of their applications for each material, and discuss they are used in such applications. • Abstract (5%) • Format (5%: See syllabus) Project Topic 6: Your own ideas ? Examples (discussion with instructor required): • Nanotechnology in electronic devices • Flexible Electronics • Electric Car • Solar Cell • Transistor • Sensor, etc. What you need to do now: • Review these topics and email me your top 3 preferences no later than 01/28. OR • Email me your own topic with a brief paper proposal no later than 01/28. Due date Title/Topic 01/28/2024 Email your title/topic/ideas to: [email protected] Abstract 1st draft of paper Final version of term paper Presentation slides 02/12/2024 03/18/2024 04/15/2024 04/22/2024 Electronic submission on Blackboard only
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