Imperial College London
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DrFeliceTorrisi

Faculty of Natural Sciences, Department of Chemistry

Senior Lecturer in Chemistry of Two-Dimensional Materials
 
 
 
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Contact

 

+44 (0)20 7594 5818f.torrisi

 
 
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Location

 

401AMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Schütt:2020:10.1038/s41467-020-14875-z,
author = {Schütt, F and Zapf, M and Signetti, S and Strobel, J and Krüger, H and Röder, R and Carstensen, J and Wolff, N and Marx, J and Carey, T and Schweichelt, M and Ivo, Terasa M and Siebert, L and Hong, H-K and Kaps, S and Fiedler, B and Kumar, Mishra Y and Lee, Z and Pugno, N and Kienle, L and Ferrari, AC and Torrisi, F and Ronning, C and Adelung, R},
doi = {10.1038/s41467-020-14875-z},
journal = {Nature Communications},
pages = {1--10},
title = {Conversionless efficient and broadband laser light diffusers for high brightness illumination applications},
url = {http://dx.doi.org/10.1038/s41467-020-14875-z},
volume = {11},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Laser diodes (LDs) are considered the next generation of ultra-efficient light sources. However, state-of-the-art LD-based lighting systems rely on light-converting phosphorous materials, which strongly limit the efficiency, lifetime as well as the achievable light output due to energy losses, saturation, thermal degradation and low irradiance levels. Here, we demonstrate a macroscopically expanded, three-dimensional diffuser composed of interconnected hollow hexagonal boron nitride microtubes with nanoscopic wall-thickness, acting as an artificial solid fog, capable of withstanding ~10 times the irradiance level of remote phosphors. Indeed, in contrast to phosphors, no light conversion is required as the diffuser relies solely on strong broadband (full visible range) lossless multiple light scattering events, enabled by a highly porous (> 99.99%) non-absorbing nanoarchitecture, resulting in efficiencies of up to 98 %. This can unleash the potential of lasers for high-brightness lighting applications, such as automotive headlights, projection technology or lighting for large spaces.
AU  - Schütt,F
AU  - Zapf,M
AU  - Signetti,S
AU  - Strobel,J
AU  - Krüger,H
AU  - Röder,R
AU  - Carstensen,J
AU  - Wolff,N
AU  - Marx,J
AU  - Carey,T
AU  - Schweichelt,M
AU  - Ivo,Terasa M
AU  - Siebert,L
AU  - Hong,H-K
AU  - Kaps,S
AU  - Fiedler,B
AU  - Kumar,Mishra Y
AU  - Lee,Z
AU  - Pugno,N
AU  - Kienle,L
AU  - Ferrari,AC
AU  - Torrisi,F
AU  - Ronning,C
AU  - Adelung,R
DO  - 10.1038/s41467-020-14875-z
EP  - 10
PY  - 2020///
SN  - 2041-1723
SP  - 1
TI  - Conversionless efficient and broadband laser light diffusers for high brightness illumination applications
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/s41467-020-14875-z
UR  - https://www.nature.com/articles/s41467-020-14875-z
UR  - http://hdl.handle.net/10044/1/75743
VL  - 11
ER  -
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