Ultralow‐Threshold and High‐Quality Whispering‐Gallery‐Mode Lasing from Colloidal Core/Hybrid‐Shell Quantum Wells (Adv. Mater. 13/2022)

作者：Duan Rui; Zhang Zitong; Xiao Lian; Zhao Xiaoxu; Thung Yi Tian; Ding Lu; Liu Zheng; Yang Jun; Ta Van Duong; Sun Handong

来源：Advanced Materials, 2022, 34(13): 2270104.

DOI：10.1002/ADMA.202270104

• colloidal quantum wells
• compositional engineering
• monolithic microcavities
• single‐mode lasing
• ultralow threshold lasing
• whispering gallery modes

Microlasers(#br)A self‐assembled CdSe/CdS@Cd1‐xZnxS core/buffer‐shell@graded‐shell nanoplatelets whispering‐gallery‐mode microlaser with ultralow lasing threshold, high quality factor, and stable single‐frequency operation is proposed by Jun Yang, Van Duong Ta, Handong Sun in article number 2108884. The results highlight the significance of interface engineering on the optimization of gain properties of heterostructured nanomaterials and shed light on developing future miniaturized tunable coherent light sources.

• 单位
  哈尔滨工程大学