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Autor(en) / Beteiligte
Titel
Band Tunable Microcavity Perovskite Artificial Human Photoreceptors
Ist Teil von
  • Advanced materials (Weinheim), 2019-06, Vol.31 (24), p.e1900231-n/a
Ort / Verlag
Germany: Wiley Subscription Services, Inc
Erscheinungsjahr
2019
Link zum Volltext
Quelle
Wiley Online Library
Beschreibungen/Notizen
  • Electronic device versions of the neural functions of the human retina have high potential for use in artificial vision. This study demonstrates halide perovskite artificial human photoreceptors with specific photoresponses to red, green, and blue colors, which are consistent with human retinal photoreceiving cones and rods. In contrast to the current programmable spectral‐response technologies, a novel microcavity structure is combined in this study with a perovskite absorber to achieve a targeted spectrum without using external optical filters. The fabricated artificial photoreceptors exhibit excellent performance including a high detectivity of more than 1013 Jones, a large linear dynamic range of 154 dB, and a short response time of 580 ns. These values are equal to or better than those of the natural human retina. These devices can easily be monolithically integrated on a single flexible substrate by using vacuum deposition, and a true proof‐of‐concept full‐color image reconstruction is demonstrated. Microcavity‐integrated monolithic flexible perovskite artificial human photoreceptors are demonstrated. The artificial cones and rods exhibit a true similarity with the natural human retina and exhibit excellent specific detectivity, large linear dynamic range, short response time, and low noise current. The potential of these versatile structures is manifested by reproducing a realistic full‐color image.
Sprache
Englisch
Identifikatoren
ISSN: 0935-9648
eISSN: 1521-4095
DOI: 10.1002/adma.201900231
Titel-ID: cdi_proquest_miscellaneous_2215019132

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