2019
DOI: 10.1016/j.snb.2019.01.145
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High-performance optical fiber humidity sensor based on lossy mode resonance using a nanostructured polyethylenimine and graphene oxide coating

Abstract:  Layer-by-layer assembly has been proven as an effective thin film deposition method  Good coverage, continuity and controlled thickness of the sensitive film accomplished  The fabricated sensor exhibits very good sensitivity and a wide detection range  Hysteresis as well as response and recovery times are excellent

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Cited by 58 publications
(21 citation statements)
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References 48 publications
(76 reference statements)
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“…The measured results obtained from the rGO/PS-coated optical microfiber exhibited a sensitivity of −0.224 dB/%RH and −4.118 dB/%RH for detection range 50.5-70.6 %RH and 79.5-85 %RH, correspondingly. Overall, Table 3 summarizes all carbon allotrope-based RH OFS and their respective sensing performance [134,[147][148][149][150][151][152][153][154][155][156][157][158][159][160][161][162].…”
Section: Humiditymentioning
confidence: 99%
“…The measured results obtained from the rGO/PS-coated optical microfiber exhibited a sensitivity of −0.224 dB/%RH and −4.118 dB/%RH for detection range 50.5-70.6 %RH and 79.5-85 %RH, correspondingly. Overall, Table 3 summarizes all carbon allotrope-based RH OFS and their respective sensing performance [134,[147][148][149][150][151][152][153][154][155][156][157][158][159][160][161][162].…”
Section: Humiditymentioning
confidence: 99%
“…The LMR-generating coating consisted of PEI-GO cross-linked films. GO and PEI were assembled on an interchangeable layer-by-layer basis, by depositing alternating layers of both materials with wash steps in between [26], [27], [28]. The GO powder used was purchased from Graphenea (Spain).…”
Section: Materials and Fabrication Of The Sensitive Layermentioning
confidence: 99%
“…Several authors have explored the potential of GO in different types of optical fiber sensors [19], [25]. However, very few works have investigated the ability of GO as sensitive coating in LMR sensors [26], [27], [28]. In these works, the LMR-based optical fiber sensing scheme consisted of a multimode optical fiber with a layer of SnO2 directly sputtered onto the core, which performed as LMR-generating coating, and a GO-based thin film deposited on top, acting as sensitive coating.…”
Section: Introductionmentioning
confidence: 99%
“…Owing to its ease of fabrication and large scale production scalability, graphene oxide (GO) has caught the attention of many researchers as a reasonable graphene alternative in the fabrication of thin films for various applications [14][15][16][17][18][19][20]. The most notable GO production method is the Modified Hummers method, which uses affordable graphite as a precursor raw material [21].…”
Section: Introductionmentioning
confidence: 99%