4.6 Article

Film transfer of structured organo-lead-halide perovskite for low-cost lasing applications

期刊

APPLIED PHYSICS LETTERS
卷 115, 期 14, 页码 -

出版社

AIP Publishing
DOI: 10.1063/1.5113647

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资金

  1. Japan Science and Technology Agency (JST), ERATO, Adachi Molecular Exciton Engineering Project (JST ERATO) [JPMJER1305]
  2. International Institute for Carbon Neutral Energy Research - Ministry of Education, Culture, Sports, Science and Technology (MEXT) [WPI-I2CNER]
  3. JSPS KAKENHI [JP15K14149, JP16H04192]
  4. Canon Foundation

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Organo-lead-halide perovskite materials offer a potentially low-cost way to fabricate high-quality optoelectronic devices such as solar cells, light-emitting diodes, and lasers. In this work, we focused on perovskite laser applications. There are many types of perovskite lasers reported such as photonic crystal lasers and distributed feedback lasers. These lasers typically require nanoscale lithography to produce the needed cavity structure, which adds significant complexity and cost. This additional cost is not compatible with a vision of low-cost solution processed lasing films. Within this report, we demonstrate a way of replicating grating patterns in lasing films on low-cost polyethylene terephthalate substrates. The film is formed on the master grating and transferred to the final substrate. The master grating can then be used repeatedly. In this process, there is no need to repeat the lithography process and it does not require an additional material, like a UV-cured resin, to create the laser cavity. The cavity is made from the perovskite material itself. Additionally, the film formation is largely independent of the final substrate, eliminating concerns about solvent-substrate compatibility.

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