Photoluminescence ring formation under continuous-wave optical excitation (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Photoluminescence ring formation under continuous-wave optical excitation

Caption

PL emission mapping of MA0.17FA0.83Pb(I0.5Br0.5)3 at the detection wavelength of 670 nm and 790 nm after local illumination for 1 h with a beam size of ~ 1 mm and density of 1 sun on the bare film, and over an annular aperture with a 1 mm diameter pinhole and a center obstruction target of 850 µm, respectively.

Credit

by Xiaoxiao Sun, Yong Zhang, Weikun Ge

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Credit must be given to the creator.

License

CC BY

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