Wavelength-tunable colloidal quantum dot laser on ultra-thin flexible glass

InGaN µLEDs integrated onto colloidal quantum dot functionalized ultra-thin glass.

Red-, orange-, and green-emitting integrated optoelectronic sources are demonstrated by transfer printing blue InGaN µLEDs onto ultra-thin glass platforms functionally enhanced with II-VI colloidal quantum dots (CQDs). The forward optical power conversion efficiency of these heterogeneously integrated devices is, respectively, 9%, 15%, and 14% for a blue light absorption over 95%. The sources a...

Electrical effects of metal nanoparticles embedded in ultra-thin colloidal quantum dot films

A tunable colloidal quantum dot photo field-effect transistor

A High Power, Frequency Tunable Colloidal Quantum Dot (CdSe/ZnS) Laser

Tunable lasers are essential for medical, engineering and basic science research studies. Most conventional solid-state lasers are capable of producing a few million laser shots, but limited to specific wavelengths, which are bulky and very expensive. Dye lasers are continuously tunable, but exhibit very poor chemical stability. As new tunable, efficient lasers are always in demand, one such la...

InAs/InP(100) quantum dot laser with high wavelength stability

Introduction: The lasing wavelength of a semiconductor laser inevitably changes with varying the operation temperature, which is, however, not desirable for applications requiring specific and stable light wavelength. Thus, laser diodes with wavelength insensitive to temperature are fascinating and can drastically ease the critical requirements on precise temperature control. The quantum dot (Q...