Efficient photon recycling and radiation trapping in cesium lead halide perovskite waveguides (Conference Presentation)

Anton V. Malko; Ibrahim Dursun; Yangzi Zheng; Tianle Guo; Michelle deBastiani; Bekir Turedi; Lutfan Sinatra; Md Azimul Haque; Bin Sun; Ayan Zhumekenov; Makhsud Saidaminov; Edward Sargent; Tom Wu; Yuri N. Gartstein; Osman Bakr; Omar F. Mohammed

doi:10.1117/12.2507693

8 March 2019 Efficient photon recycling and radiation trapping in cesium lead halide perovskite waveguides (Conference Presentation)

Anton V. Malko, Ibrahim Dursun, Yangzi Zheng, Tianle Guo, Michelle deBastiani, Bekir Turedi, Lutfan Sinatra, Md Azimul Haque, Bin Sun, Ayan Zhumekenov, Makhsud Saidaminov, Edward Sargent, Tom Wu, Yuri N. Gartstein, Osman Bakr, Omar F. Mohammed

Author Affiliations +

Proceedings Volume 10913, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VIII; 1091304 (2019) https://doi.org/10.1117/12.2507693
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Cesium lead halide perovskite materials have recently attracted attention in view of their optical and electronic properties which make them excellent candidates for potential applications in lasers, light emitting diodes and photodetectors. In this work, we provide the experimental and theoretical evidence for sequential photon absorption/re-emission in CsPbBr3 perovskite microwires. Using two-photon excitation, we recorded PL lifetimes and emission spectra as a function of the lateral distance between PL excitation and collection positions along the microwire, with separations exceeding 100 µm. As the propagation length increases, the PL spectrum develops a new emission peak that is red-shifted by 20 nm from the main emission and is accompanied by the appearance of the well-resolved rise times in the PL kinetics. We undertake quantitative modeling that accounts for bimolecular recombination and photon recycling within the microwire waveguide, and find that it is sufficient to account for the observed decay modifications. The model relies on a high radiative efficiency in CsPbBr3 perovskite microwires to explain the photon recycling observed. Such findings provide crucial information about the potential impact of photon recycling and waveguide trapping on optoelectronic properties of cesium lead halide perovskite materials

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Anton V. Malko, Ibrahim Dursun, Yangzi Zheng, Tianle Guo, Michelle deBastiani, Bekir Turedi, Lutfan Sinatra, Md Azimul Haque, Bin Sun, Ayan Zhumekenov, Makhsud Saidaminov, Edward Sargent, Tom Wu, Yuri N. Gartstein, Osman Bakr, and Omar F. Mohammed "Efficient photon recycling and radiation trapping in cesium lead halide perovskite waveguides (Conference Presentation)", Proc. SPIE 10913, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VIII, 1091304 (8 March 2019); https://doi.org/10.1117/12.2507693

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KEYWORDS

Perovskite

Cesium

Lead

Waveguides

Laser applications

Light emitting diodes

Optoelectronics

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