Pascal Büttner
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View article: Solution ALD of (CH <sub>3</sub> NH <sub>3</sub> )(PbI <sub>3</sub> ) Perovskite Thin Films Yields Functional Quality and Stability Superior to Classical Processing
Solution ALD of (CH <sub>3</sub> NH <sub>3</sub> )(PbI <sub>3</sub> ) Perovskite Thin Films Yields Functional Quality and Stability Superior to Classical Processing Open
Atomic‐level control of solution‐processed hybrid halide perovskites is achieved experimentally by solution atomic layer deposition (sALD). This method transfers the surface chemical principles of gas‐phase ALD (gALD) to precursors dissolv…
View article: Ultrafast Dynamics of Complete Sb<sub>2</sub>S<sub>3</sub> Solar Cells Unveiled via a Bifacial Architecture
Ultrafast Dynamics of Complete Sb<sub>2</sub>S<sub>3</sub> Solar Cells Unveiled via a Bifacial Architecture Open
Charge transfer and recombination dynamics are key to understanding and optimizing photovoltaic devices. However, metallic contacts are typically used to fabricate devices, making them incompatible with transmission spectroscopic technique…
View article: Stability of Bimetallic Pt<sub><i>x</i></sub>Ru<sub><i>y</i></sub> – From Model Surfaces to Nanoparticulate Electrocatalysts
Stability of Bimetallic Pt<sub><i>x</i></sub>Ru<sub><i>y</i></sub> – From Model Surfaces to Nanoparticulate Electrocatalysts Open
Fundamental research campaigns in electrocatalysis often involve the use of model systems, such as single crystals or magnetron-sputtered thin films (single metals or metal alloys). The downsides of these approaches are that oftentimes onl…
View article: Monolithic two-terminal tandem solar cells using Sb2S3 and solution-processed PbS quantum dots achieving an open-circuit potential beyond 1.1 V
Monolithic two-terminal tandem solar cells using Sb2S3 and solution-processed PbS quantum dots achieving an open-circuit potential beyond 1.1 V Open
Multijunction solar cells show the prospect to raise the theoretical efficiency limit of single junction solar cells by minimizing transmissive losses of large bandgap and emissive losses of lower bandgap absorber solar cells. In solar cel…
View article: Continuous, crystalline Sb2S3 ultrathin light absorber coatings in solar cells based on photonic concentric p-i-n heterojunctions
Continuous, crystalline Sb2S3 ultrathin light absorber coatings in solar cells based on photonic concentric p-i-n heterojunctions Open
Many modern types of solar cells that rely exclusively on earth-abundant non-toxic materials include interfaces between a heavier metal chalcogenide and another type of semiconductor. Often, the chemical (adhesion) and physical (charge tra…
View article: A Geometrically Well-Defined and Systematically Tunable Experimental Model to Transition from Planar to Mesoporous Perovskite Solar Cells
A Geometrically Well-Defined and Systematically Tunable Experimental Model to Transition from Planar to Mesoporous Perovskite Solar Cells Open
A series of perovskite solar cells with systematically varying surface area of the interface between n-type electron conducting layer (TiO2) and perovskite are prepared by using an ordered array of straight, cylindrical nanopores generated…
View article: Nanostructured Transparent Electrodes: A Self‐Ordered Nanostructured Transparent Electrode of High Structural Quality and Corresponding Functional Performance (Small 20/2021)
Nanostructured Transparent Electrodes: A Self‐Ordered Nanostructured Transparent Electrode of High Structural Quality and Corresponding Functional Performance (Small 20/2021) Open
In article number 2100487, Ignacio Mínguez-Bacho and co-workers report the fabrication of highly ordered nanoporous transparent electrodes using nanosphere lithography and anodization. The self-assembly methods used result in perfect hexag…
View article: A Self‐Ordered Nanostructured Transparent Electrode of High Structural Quality and Corresponding Functional Performance
A Self‐Ordered Nanostructured Transparent Electrode of High Structural Quality and Corresponding Functional Performance Open
The preparation of a highly ordered nanostructured transparent electrode based on a combination of nanosphere lithography and anodization is presented. The size of perfectly ordered pore domains is improved by an order of magnitude with re…
View article: ZnS Ultrathin Interfacial Layers for Optimizing Carrier Management in Sb<sub>2</sub>S<sub>3</sub>-based Photovoltaics
ZnS Ultrathin Interfacial Layers for Optimizing Carrier Management in Sb<sub>2</sub>S<sub>3</sub>-based Photovoltaics Open
Antimony chalcogenides represent a family of materials of low toxicity and relative abundance, with a high potential for future sustainable solar energy conversion technology. However, solar cells based on antimony chalcogenides present op…
View article: Solid state interdigitated Sb<sub>2</sub>S<sub>3</sub> based TiO<sub>2</sub> nanotube solar cells
Solid state interdigitated Sb<sub>2</sub>S<sub>3</sub> based TiO<sub>2</sub> nanotube solar cells Open
TiO2 nanotubes generated by anodization of metallic titanium sputter-coated on indium tin oxide (ITO) substrates are used as a conductive scaffold for all-solid-state Sb2S3-sensitized extremely thin absorber (ETA) solar cells.
View article: Adjusting Interfacial Chemistry and Electronic Properties of Photovoltaics Based on a Highly Pure Sb<sub>2</sub>S<sub>3</sub> Absorber by Atomic Layer Deposition
Adjusting Interfacial Chemistry and Electronic Properties of Photovoltaics Based on a Highly Pure Sb<sub>2</sub>S<sub>3</sub> Absorber by Atomic Layer Deposition Open
The combination of oxide and heavier chalcogenide layers in thin film photovoltaics suffers limitations associated with oxygen incorporation and sulfur deficiency in the chalcogenide layer or with a chemical incompatibility which results i…
View article: Highly Active Ir/TiO<sub>2</sub>Electrodes for the Oxygen Evolution Reaction Using Atomic Layer Deposition on Ordered Porous Substrates
Highly Active Ir/TiO<sub>2</sub>Electrodes for the Oxygen Evolution Reaction Using Atomic Layer Deposition on Ordered Porous Substrates Open
Nanostructured Ir/TiO2 electrodes are investigated toward the oxygen evolution reaction (OER) from water. The electrodes are prepared based on highly ordered TiO2 nanotubes grown from Ti foils with full geometric control. The tube walls ar…
View article: A solution-based ALD route towards (CH<sub>3</sub>NH<sub>3</sub>)(PbI<sub>3</sub>) perovskite <i>via</i> lead sulfide films
A solution-based ALD route towards (CH<sub>3</sub>NH<sub>3</sub>)(PbI<sub>3</sub>) perovskite <i>via</i> lead sulfide films Open
Lead sulfide is deposited from the salts in ‘solution ALD’ mode and converted directly to the hybrid perovskite CH3NH3PbI3.
View article: Ordered nanopore arrays with large interpore distances <i>via</i> one-step anodization
Ordered nanopore arrays with large interpore distances <i>via</i> one-step anodization Open
We prepare arrays of cylindrical pores featuring large periods (460 nm and 600 nm) by anodization of aluminum. A self-ordered monolayer of nanospheres drives the subsequent pore ordering and yields a quality of order significantly improved…
View article: Significant performance enhancement of InGaN/GaN nanorod LEDs with multi-layer graphene transparent electrodes by alumina surface passivation
Significant performance enhancement of InGaN/GaN nanorod LEDs with multi-layer graphene transparent electrodes by alumina surface passivation Open
Nanotextured surfaces provide an ideal platform for efficiently capturing and emitting light. However, the increased surface area in combination with surface defects induced by nanostructuring e.g. using reactive ion etching (RIE) negative…