CuGaO2 thin film synthesis using hydrogen-assisted pulsed laser deposition

Varadarajan, V.; Norton, D. P.

doi:10.1007/s00339-006-3667-0

Cited by 27 publications

(20 citation statements)

References 22 publications

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“…Because the increase in the conductivity is mostly due to the increase in mobility, it is concluded that post-annealing enhances the mobility by improving the crystallinity of the film. This mobility value is the largest among CuGaO 2 thin films reported to date [9,16].…”

Section: Resultsmentioning

confidence: 82%

Control of carrier concentration and surface flattening of CuGaO2 epitaxial films for a p-channel transparent transistor

et al. 2008

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Section: Resultsmentioning

confidence: 82%

Control of carrier concentration and surface flattening of CuGaO2 epitaxial films for a p-channel transparent transistor

et al. 2008

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“…[139b] The other important phase in the Cu/Ga-oxide system, delafossite CuGaO 2 , is more readily available, it can be prepared by pulsed laser deposition as thin films [140] and by a solvothermal route. [141] As our first attempts to isolate the spinel phase through the solvothermal reaction of copper and gallium salts in ethylene glycol failed, we modified the synthetic strategy into a MW-HT approach by applying copper and gallium salts, water, and ammonia (25 %) to adjust the pH value between 10.5 and 10.7.…”

Section: Microwave-assisted Strategiesmentioning

confidence: 99%

Oxide Nanomaterials: Synthetic Developments, Mechanistic Studies, and Technological Innovations

et al. 2010

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Oxide nanomaterials are indispensable for nanotechnological innovations, because they combine an infinite variety of structural motifs and properties with manifold morphological features. Given that new oxide materials are almost reported on a daily basis, considerable synthetic and technological work remains to be done to fully exploit this ever increasing family of compounds for innovative nano-applications. This calls for reliable and scalable preparative approaches to oxide nanomaterials and their development remains a challenge for many complex nanostructured oxides. Oxide nanomaterials with special physicochemical features and unusual morphologies are still difficult to access by classic synthetic pathways. The limitless options for creating nano-oxide building blocks open up new technological perspectives with the potential to revolutionize areas ranging from data processing to biocatalysis. Oxide nanotechnology of the 21st century thus needs a strong interplay of preparative creativity, analytical skills, and new ideas for synergistic implementations.

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“…To date, solid state reactions and vacuum-deposition have been extensively applied for the synthesis of CuGaO2 [35,[39][40][41][42][43][44]. However, both methods exhibit significant drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Employing surfactant-assisted hydrothermal synthesis to control CuGaO2 nanoparticle formation and improved carrier selectivity of perovskite solar cells

Papadas¹,

Savva²,

Ioakeimidis³

et al. 2018

Materials Today Energy

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Delafossites like CuGaO2 have appeared as promising p-type semiconductor materials for opto-electronic applications mainly due to their high optical transparency and 2 electrical conductivity. However, existing synthetic efforts usually result in particles with large diameter limiting their performance relevant to functional electronic applications. In this article, we report a novel surfactant-assisted hydrothermal synthesis method, which allows the development of ultrafine (~5 nm) monodispersed p-type CuGaO2 nanoparticles (NPs). We show that DMSO can be used as a ligand and dispersing solvent for stabilizing the CuGaO2 NPs. The resulting dispersion is used for the fabrication of dense, compact functional CuGaO2 electronic layer with properties relevant to advanced optoelectronic applications. As a proof of concept, the surfactant-assisted hydrothermal synthesized CuGaO2 is incorporated as a hole transporting layer (HTL) in the inverted p-i-n perovskite solar cell device architecture providing improved hole carrier selectivity and power conversion efficiency compared to conventional PEDOT:PSS HTL based perovskite solar cells.

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CuGaO2 thin film synthesis using hydrogen-assisted pulsed laser deposition

Cited by 27 publications

References 22 publications

Control of carrier concentration and surface flattening of CuGaO2 epitaxial films for a p-channel transparent transistor

Control of carrier concentration and surface flattening of CuGaO2 epitaxial films for a p-channel transparent transistor

Oxide Nanomaterials: Synthetic Developments, Mechanistic Studies, and Technological Innovations

Employing surfactant-assisted hydrothermal synthesis to control CuGaO2 nanoparticle formation and improved carrier selectivity of perovskite solar cells

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