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Optimal overlayer inspired by Photuris firefly improves light-extraction efficiency of existing light-emitting diodes

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Paper breakdownThe authors' claims, conditions and measurements, as JSON Signed receiptProof this review has not been altered
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Annick Bay, Nicolas Andre, Michael Sarrazin, Ali Belarouci, Vincent Aimez, Laurent A. Francis, Jean Pol Vigneron

Optics · Submitted 21 Sep 2012

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim The gain of light extraction reaches values up to 55% with respect to the reference unprocessed LED.

how it is stated · asserted 0.98 read the record →

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arXiv ID1209.4767 (version 2)
Pith IDF36IKN5Z, Pith's permanent record of this paper and its review
CitationAli Belarouci, Annick Bay, Jean Pol Vigneron, Laurent A. Francis, Michael Sarrazin, Nicolas Andre, Vincent Aimez. "Optimal overlayer inspired by Photuris firefly improves light-extraction efficiency of existing light-emitting diodes." arXiv:1209.4767 (2012). https://pith.science/paper/F36IKN5Z
Claim paper

The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

Open the compiled record

Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,883 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.05 · states limitation 0.09 · human participants 0.02 · controlled comparison 0.94 · randomized assignment 0.01 · states quantitative result 0.99 · compares with prior results 0.90 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; .

In this paper the design, fabrication and characterization of a bioinspired overlayer deposited on a GaN LED is described. The purpose of this overlayer is to improve light extraction into air from the diode's high refractive-index active material. The layer design is inspired by the microstructure found in the firefly Photuris sp. The actual dimensions and material composition have been optimized to take into account the high refractive index of the GaN diode stack. This two-dimensional pattern contrasts other designs by its unusual profile, its larger dimensions and the fact that it can be tailored to an existing diode design rather than requiring a complete redesign of the diode geometry. The gain of light extraction reaches values up to 55% with respect to the reference unprocessed LED.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 In this paper the design, fabrication and characterization of a bioinspired overlayer deposited on a GaN LED is described. contribution 0.99 0.93 0.04 asserted 0.91
s1 The purpose of this overlayer is to improve light extraction into air from the diode's high refractive-index active material. contribution 0.49 0.23 0.06 asserted 0.97
s2 The layer design is inspired by the microstructure found in the firefly Photuris sp. method 0.52 0.33 0.03 asserted 1.00
s3 The actual dimensions and material composition have been optimized to take into account the high refractive index of the GaN diode stack. method 0.87 0.84 0.04 asserted 1.00
s4 This two-dimensional pattern contrasts other designs by its unusual profile, its larger dimensions and the fact that it can be tailored to an existing diode design rather than requiring a complete redesign of the diode geometry. contribution 0.95 0.65 0.06 asserted 1.00
s5 The gain of light extraction reaches values up to 55% with respect to the reference unprocessed LED. result 1.00 0.93 0.83 asserted 0.98

What kind of paper the classifier reports this is: method or tool 0.59 · evidence from observation or experiment 1.00.

What was examined, and what was not

sources read
  • arXiv listing abstract v2
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
levels run
  • P abstract
not run
  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

In this paper the design, fabrication and characterization of a bioinspired overlayer deposited on a GaN LED is described. The purpose of this overlayer is to improve light extraction into air from the diode's high refractive-index active material. The layer design is inspired by the microstructure found in the firefly Photuris sp. The actual dimensions and material composition have been optimized to take into account the high refractive index of the GaN diode stack. This two-dimensional pattern contrasts other designs by its unusual profile, its larger dimensions and the fact that it can be tailored to an existing diode design rather than requiring a complete redesign of the diode geometry. The gain of light extraction reaches values up to 55% with respect to the reference unprocessed LED.

Human review

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How the literature uses it

1 arXiv paper cite this in 1 sentence

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

What it cites · 2 sentences without a confident label

Uses data or values from 1 paper

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