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Micromachines
Volume 13
Issue 5
10.3390/mi13050695
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Article
Peer-Review Record

Enhanced Light Output Power on Near-Infrared Light-Emitting Diodes with TITO/Ag Multilayer Reflector

Micromachines 2022, 13(5), 695; https://doi.org/10.3390/mi13050695
by Hyung-Joo Lee 1, In-Kyu Jang 1,2, Dae-Kwang Kim 1, Yu-Jung Cha 3,* and Sung Woon Cho 2,*
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Micromachines 2022, 13(5), 695; https://doi.org/10.3390/mi13050695
Submission received: 3 April 2022 / Revised: 26 April 2022 / Accepted: 27 April 2022 / Published: 28 April 2022
(This article belongs to the Special Issue Advances in Light-Emitting Materials, Devices, and Simulation)

Round 1

Reviewer 1 Report

The authors describe an article entitled “Enhanced Light Output Power on Near-Infrared Light-Emitting Diodes with TITO/Ag Multilayer Reflector”. The topic of the manuscript is interesting, and the manuscript constitutes an interesting research article concerning the development of new strategies to improve light outout of OLEDs.

The work is well-written and a well-constructed introduction has been established by the authors. Sufficient spectra and figures are included in the manuscript for comprehension and clarity. Interesting and convincing results are also presented in this work. Overall, I think that this is a manuscript that I recommend for publication after inclusion of minor revisions.

1) What is the Lambertian distribution of the emitted light ?

2) Is the emission color of the dye impacted by the nanostructures ?

3) What about the device lifetime of these devices, this point is not commented.

4) What is the variation of the emitted light with the applied voltage ? This point should be examined.

 

For all the above-mentioned reason, at present do not publish.

 

 

Author Response

Please see the attachment

Reviewer 2 Report

The paper reports on the realization of a multilayer reflector to be integrated into NIR-LED with the aim of improving the emission efficiency. In particular, Titanium-Indium Tin Oxide (TITO) is used for the multilayer; Ag omnidirectional reflectors are then integrated into the structure.

Integration of reflectors into diode emitting devices is a well-established, and certainly not original, approach. However, the proposed material combination sounds novel and it may lead to advantages in terms of compatibility with those parts of the process involving high temperature.

The manuscript is sufficiently clear, yet very concise, and results, including also the comparison between different configurations, are convincing. Although they should likely be intended as preliminary, since, for instance, repeatability has not been considered, my opinion is that they can be of interest within the community involved in design and fabrication of emitting devices.

Therefore, I deem the paper suitable for publication in the present form.

Author Response

Please see the attachment

Author Response File: Author Response.pdf

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