Organic light-emitting diode

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/organic-light-emitting-diode

Step 2 · Questions

1. 1. What is the core mechanism?

2. 2. What is the pioneering device?

Step 3 · Words to know

Write what each word means, using the article.

• Exciton

• Quantum Efficiency

• Contrast Ratio

Step 4 · Two facts in your own words

Do not copy the article. Write two things you learned, the way you would explain them to a friend.