In this exciting episode, we're joined by Dr. Congreve, who introduces us to a game-changing technology in the field of three-dimensional (3D) printing. Stereolithography, one of the most successful techniques in 3D printing, has its limitations due to the linear absorption of light. This factor restricts both the choice of resin and the range of shapes that can be produced.

In order to overcome this challenge, Dr. Congreve's team has utilized triplet fusion upconversion, a technique that enables volumetric printing with less than 4 milliwatt continuous-wave excitation. This strategy offers a leap beyond the traditional interfacial paradigm of 3D printing and allows for the creation of more complex structures without the restrictions associated with high laser power.

Dr. Congreve further discusses the introduction of an excitonic stra ...