Optically Excited Lasing in a Cavity‐Based, High‐Current‐Density Quantum Dot Electroluminescent Device (Adv. Mater. 9/2023)

Optically Excited Lasing In article number 2206613, Namyoung Ahn, Victor I. Klimov, and co-workers demonstrate optically excited lasing in a fully functional colloidal quantum dot electroluminescent device with an integrated optical resonator prepared as a distributed feedback grating, representing an important milestone toward solution-processable laser diodes. The colloidal quantum dots are cast from solution onto a grating and excited either electrically or optically to produce multicolor output. Image credit: Albin Guyot.