Microbes based printing for fabrication of microlenses for organic light emitting diodes

Mehta, Sunita; Murugeson, Saravanan; Prakash, Balaji

doi:10.1016/j.orgel.2016.05.023

Cited by 7 publications

(2 citation statements)

References 21 publications

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“…Lastly, we note that the numerical framework developed in this study can be extended to other optical applications. For example, disordered microlens arrays based on self-assemblies have been recently proposed for light extraction in organic light-emitting diodes [39][40][41]. Herein, our methodology could be used to determine the influence of structural disorder on their light outcoupling efficiency as well as on their emission pattern.…”

Section: Discussionmentioning

confidence: 99%

Assessing the influence of structural disorder on the plant epidermal cells’ optical properties: a numerical analysis

et al. 2017

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Many plant surfaces, such as rose petals, display lens-like epidermal cells that are known to assist the collection and focusing of the sunlight. Those cells form an array with a high degree of structural irregularities including disorder in the height and orientation of the cells, and in their arrangement. In this study, we numerically analyze the influence of structural disorder on the optical properties of a 3D modeled epidermal cell array using ray tracing simulations. We conclude that the anti-reflection properties of such structures are almost unperturbed by disorder effects, although the latter can notably broaden the propagation angle distribution of the collected light. Those results also have a direct implication on the design of plant-inspired light management structures. This aspect is illustrated by introducing the example of a thin-film solar cell covered by a light harvesting epidermal cells replica and simulated for each of the three disorder types considered.

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Section: Discussionmentioning

confidence: 99%

Assessing the influence of structural disorder on the plant epidermal cells’ optical properties: a numerical analysis

et al. 2017

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“…For example, such ensembles were obtained spontaneously using a phase separation technique, 32 or almost autonomously via the so-called "microbial approach." 33 Their integrated η ext enhancement could not overcome that obtained with regular MLA, but adding disorder enabled improving the uniformity of the luminance angular distribution while suppressing spectral distortion. Lastly, in their recent work, Kim et al 34 combined all the previously mentioned attributes (patterning on a flexible polyethylene naphthalate substrate, cost-effective fabrication process based on the self-assembly of microparticles, patterning of irregular MLA) and enhanced the MLA properties by incorporating Al 2 O 3 nanoparticles.…”

Section: Improvement Of the External Outcoupling Through The Introducmentioning

confidence: 95%

Photon management in solution-processed organic light-emitting diodes: a review of light outcoupling micro- and nanostructures

et al. 2016

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To allow a greater acceptance in the display and lighting markets, organic lightemitting diode (OLED) technology is currently the subject of intensive research efforts aimed at manufacturing cost-effective devices with higher efficiencies. In this regard, strategies matured in the field of photonics and nanophotonics can be applied for photon management purposes to improve the outcoupling of the generated light and to control the emission pattern. In this review, we report on the recent experimental and numerical advances to pursue those goals by highlighting the example of bottom-emitting devices. The cases of periodical microand nanostructures, as well as of stochastic ensembles that can be easily implemented using printing techniques, are covered herein. It is shown that beyond the sole optical properties, such additional elements can simultaneously improve the electrical characteristics of solutionprocessed OLEDs, and thus enable an optimization of the devices at different levels. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Importance of buffering nanolayer position in Layer-by-Layer assembly on titania based hybrid photoactivity

Brezhneva

Никитина

Ryzhkov

et al. 2018

J Sol-Gel Sci Technol

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Microbes based printing for fabrication of microlenses for organic light emitting diodes

Cited by 7 publications

References 21 publications

Assessing the influence of structural disorder on the plant epidermal cells’ optical properties: a numerical analysis

Assessing the influence of structural disorder on the plant epidermal cells’ optical properties: a numerical analysis

Photon management in solution-processed organic light-emitting diodes: a review of light outcoupling micro- and nanostructures

Importance of buffering nanolayer position in Layer-by-Layer assembly on titania based hybrid photoactivity

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