Film transfer enabled by nanosheet seed layers on arbitrary sacrificial substrates

Dral, A. Petra; Nijland, Maarten; Koster, Gertjan; Elshof, Johan E. ten

doi:10.1063/1.4921070

Cited by 8 publications

(10 citation statements)

References 18 publications

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“…The film ultimately transformed into NaNbO 3 at > 450 °C. [179] [171] Further more detailed information on LB nanosheet films can be found elsewhere.…”

Section: Monolayer Filmsmentioning

confidence: 99%

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Two‐Dimensional Metal Oxide and Metal Hydroxide Nanosheets: Synthesis, Controlled Assembly and Applications in Energy Conversion and Storage

Elshof

Yuan

Rodriguez

2016

Advanced Energy Materials

210

119

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He is currently focusing on the development of high temperature lubricants from 'soft' ceramic nanoparticles such as layered metal oxides and organosilica networks.catalysis [26] and energy storage. [27] The most widely investigated classes of exfoliated oxide nanosheets are titanates, [28] niobates [29] and titanoniobates, but various other compositions are now also known, as described in more detail below. Table 1. State of the art metal oxide nanosheet compounds. Compound name Exfoliation method Energy application(s) Remarks Ti 0.87 O 2 0.52-Acid-base by TBAOH [19b,32d] Thin film supercapacitors, [49] batteries, [50] piezos, [51] photocatalysis [52] Lateral size up to 100 μm [32d] Fe 0.8 Ti 1.2 O 4 0.8-Acid-base by TBAOH [41d] Photocatalysis [53] Ni 0.4 Ti 1.6 O 4 0.8-Acid-base by TBAOH Photocatalysis [53] Ti 0.91 O 2 0.36−Acid-base by TBAOH [18,54] Photovoltaics, [55] batteries, [56] fuel cells, [57] acid catalysis, [58] photocatalysis [59] Ti 4 O 9 2-Acid-base by TBAOH [37] Batteries, [37,60] fuel cells, [61] photocatalysis [59a,62] MnO 2 0.4-Acid-base by TBAOH [35] Supercapacitors, [35,63] Photovoltaics, [64] batteries, [65] photocatalysis [59a] Mn 1-x Ru x O 2 (x = 0.05 and 0.1) Acid-base by TBAOH [42] Supercapacitors [42] RuO 2 0.2-Acid-base by TBAOH [66] Supercapacitors, [67] fuel cells [68] Ca 2 Nb 3 O 10 − Acid-base by TBAOH [69] Ca 2 Nb 3 O 10−x N y -Acid-base by TBAOH [74] Photocatalysis [74] Ca 2 Na n−3 Nb n O 3n+1 − (n = 4, 5, 6) Acid-base by TBAOH [71] Ca 2-x Sr x Nb 3 O 10 -(x = 0, 0.5, 1, 1.5, 2) Acid-base by TBAOH [75] Photocatalysis [75] Ca 2 Nb 3-x Ta x O 10 -(x = 0.3, 1, 1.5) Acid-base by TBAOH [75] Photocatalysis [75] Ca 2 Nb 3-x Rh x O 10−δ -Acid-base by TBAOH [76] Photocatalysis [76] SrNb 2 O 6 F − Acid-base by TBAOH [69] (Eu 0.56 Ta 2 O 7 ) 2-Acid-base by TBAOH [77] TaO 3 -Acid-base by TBAOH [38] Batteries, [56b] photocatalysis [78] Sr 1.5 Ta 3 O 10 2-Acid-base by TBAOH [79] CaNaTa 3 O 10 2-Acid-base by TBAOH [20] Ca 2 Ta 3 O 10-x N y -Acid-base by TBAOH [44] Photocatalysis [44] Sr 2−x Ba x Ta 3 O 10-y N z -(x = 0.0, 0.5, 1.0) Acid-base by TBAOH [80] Photocatalysis [80] SrLaTi 2 TaO 10 2-Acid-base by TBAOH [20] Ca 2 Ta 2 TiO 10 2-Acid-base by TBAOH [20] Ti (5.2-2x)/6 Mn x/2 O 2 (x = 0.1, 0.2, 0.3, 0.4) Acid-base by TBAOH [81] Ti 1−x−y Fe x Co y O 2 (0 ≤ x ≤ 0.4 and 0 ≤ y ≤ 0.2) Acid-base by TBAOH [82] Cs 4 W 11 O 36 2-Acid-base by TBAOH [83] (MWO 6 ) -(M = Nb, Ta) Acid-base by TBAOH [45] Acid catalysis, [84] photocatalysis [85] NbMoO 6 -Acid-base by TBAOH [86] Acid catalysis [86,87] W 2 O 7 2-Acid-base by TMAOH [45] Photocatalysis [88] (Ti 1.825-x Nb x O 4 ) 0.7-(x = 0-0.03) Acid-base by TBAOH [89] (Ti 1.65 Mg 0.35 O 4 ) 0.7-Acid-base by TBAOH [90] Attempt to make (Ti 1.65 Ni 0.35 O 4 ) 0.7failed [91]Nb 3 O 8 -Acid-base by TBAOH [92] Acid catalysis, [92] photocatalysis [36,93] Nb 6 O 17 4-Acid-base by TBAOH [94] and intercalation of n-propylamine [95] Photovoltaics, [96] photocatalysis [59a][73c,97] TiNbO 5 − Acid-base by TBAOH [71] Batteries, [71] photovoltaics, [71] b...

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“…The film ultimately transformed into NaNbO 3 at > 450 °C. [179] [171] Further more detailed information on LB nanosheet films can be found elsewhere.…”

Section: Monolayer Filmsmentioning

confidence: 99%

“…In most cases a thermal post‐treatment is required to crystallize the functional film. The LB layer and perovskite film can be deposited first onto a sacrificial substrate such as mica, after which the sheets plus film are transferred to a thermally sensitive substrate …”

Section: Nanosheet Films and Hierarchical Architecturesmentioning

confidence: 99%

Two‐Dimensional Metal Oxide and Metal Hydroxide Nanosheets: Synthesis, Controlled Assembly and Applications in Energy Conversion and Storage

Elshof

Yuan

Rodriguez

2016

Advanced Energy Materials

210

119

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“…Such sheets can be obtained through exfoliation of materials with a lattice closely matching the lattice parameter a 0 of SrTiO 3 ( a 0 = 0.3905 nm). In our case that is Ca 2 Nb 3 O 10 (CNO; a 0 = 0.386 nm), on which the growth of epitaxial SrTiO 3 , SrRuO 3 and BiFeO 3 has already been demonstrated 7 . For STO in particular, it was found that STO grows unstrained, due to the flexibility of the CNO nanosheet.…”

Section: Introductionmentioning

confidence: 55%

“…For the first STO layer we could not obtain a crystalline film at temperatures above 660 °C and degradation of the diffraction pattern was observed before the growth started. In the literature however, films are grown at 700 °C 7,10 . The main difference between the conditions in refs.…”

Section: Discussionmentioning

confidence: 99%

“…For STO in particular, it was found that STO grows unstrained, due to the flexibility of the CNO nanosheet. This approach is very flexible, as nanosheets can be deposited on virtually any substrate 7–10 , rendering design freedom in tailoring device properties. The exfoliated nanosheets have a thickness of only 1.5 nm to 4 nm 10–13 , which means that they can also be used in experiments which make use of a backgate.…”

Section: Introductionmentioning

confidence: 99%

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Growing a LaAlO3/SrTiO3 heterostructure on Ca2Nb3O10 nanosheets

Torren

Yuan

Liao

et al. 2019

Sci Rep

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The two-dimensional electron liquid which forms between the band insulators LaAlO3 (LAO) and SrTiO3 (STO) is a promising component for oxide electronics, but the requirement of using single crystal SrTiO3 substrates for the growth limits its applications in terms of device fabrication. It is therefore important to find ways to deposit these materials on other substrates, preferably Si, or Si-based, in order to facilitate integration with existing technology. Interesting candidates are micron-sized nanosheets of Ca2Nb3O10 which can be used as seed layers for perovskite materials on any substrate. We have used low-energy electron microscopy (LEEM) with in-situ pulsed laser deposition to study the subsequent growth of STO and LAO on such flakes which were deposited on Si. We can follow the morphology and crystallinity of the layers during growth, as well as fingerprint their electronic properties with angle resolved reflected electron spectroscopy. We find that STO layers, deposited on the nanosheets, can be made crystalline and flat; that LAO can be grown in a layer-by-layer fashion; and that the full heterostructure shows the signature of the formation of a conducting interface.

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Nanomeshes at Liquid Interfaces: From Free‐Standing Hole Arrays toward Metal–Insulator–Metal Architectures

Stelling

Retsch

2018

Adv Materials Inter

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sometimes also referred to as double fishnet structures, give rise to negative refraction. [5] However, the majority of these metalinsulator-metal (MIM) structures are fabricated using top-down methods like e-beam lithography or focused-ion-beam milling. These techniques not only are very time consuming but also need sophisticated equipment making the production process expensive and hardly applicable to large areas. Especially, multilayer structures are difficult to access using classical top-down methods. Consequently, fabrication techniques suitable for the fast and cost-effective production of MIM structures still remain a challenge. Bottom-up approaches could overcome these problems by capitalizing on self-assembly strategies in the colloidal regime. [6] Tagliabue et al. prepared periodic MIM arrays with a perforated metal structure and an (unperforated) metal back reflector employing nanosphere lithography (NSL) without a transfer step. [7] For this purpose, successive e-beam evaporation of a silver or gold layer and an insulating silica layer was followed by the deposition of a gold layer through a particle template. A similar approach was used by Zhou et al. to prepare MIM structures with two perfectly aligned silver nanohole arrays, which supported magnetic cavity modes in the visible and NIR range. [8] As multiple layers are deposited onto the same particle monolayer, the number of layers in the MIM structure is limited by the height of the templating structure.Gong et al. reported a self-assembled MIM structure consisting of two stacked silver nanohole arrays. The hole arrays were consecutively prepared by NSL combined with electrochemical metal deposition. Although the self-assembly process inherently yielded misaligned hole arrays, the structures showed a negative index of refraction in the visible regime. [9] Misaligned, stacked nanohole arrays even exhibit interesting chiroptical effects, which depend on the in-plane rotational offset of the nanohole arrays. [10] To further facilitate the production of MIM structures, the direct transfer of readily prepared hole arrays is highly desirable. The transfer procedures currently available usually rely on the dissolution of thick silicon, aluminum, or copper substrates or the chromium adhesive layer under harsh conditions. [10,11] Alternatively, silver or polymer sacrificial layers have been used, which limits the freedom of fabrication regardingThe superior optical properties of metamaterials often rely on hierarchical structures in the sub-wavelength regime comprising stacks of individually patterned layers. For the fabrication of metamaterials in the visible regime, specific top-down lithographic methods have been developed. These techniques, however, have several inherent drawbacks such the lack of scalability and low production speeds. Here, a simple and modular approach for the construction of multilayer metal-insulator-metal structures based on the transfer of metal nanohole arrays via liquid interfaces is demonstrated. Gold nanohole arrays are us...

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Film transfer enabled by nanosheet seed layers on arbitrary sacrificial substrates

Cited by 8 publications

References 18 publications

Two‐Dimensional Metal Oxide and Metal Hydroxide Nanosheets: Synthesis, Controlled Assembly and Applications in Energy Conversion and Storage

Two‐Dimensional Metal Oxide and Metal Hydroxide Nanosheets: Synthesis, Controlled Assembly and Applications in Energy Conversion and Storage

Growing a LaAlO3/SrTiO3 heterostructure on Ca2Nb3O10 nanosheets

Nanomeshes at Liquid Interfaces: From Free‐Standing Hole Arrays toward Metal–Insulator–Metal Architectures

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