Explanipedia

VIS-XUV Optical Constants and Electronic Band Parameters of a Tin-Oxo Cage Photoresist (Sn 12 O 24 C 52 H 120 ) Open

Wolfgang Werner, Florian Simperl, Felix Blödorn, Olga Ridzel, Quentin Evrard , et al. · 2025

Energy band parameters and VIS-XUV optical constants were measured on a Tin-Oxo cage photoresist by employing reflection electron energy loss spectra (REELS) and secondary electron-electron energy loss spectroscopy (SE2ELCS). Different kin…

Unidirectional Transmembrane Photoinduced Electron Transfer with Artificial Metallopeptides Open

David M. Klein, Xinmeng Li, Aimee L. Boyle, Rianne van der Pol, Vasiliki E. Tsina , et al. · 2025

The ability to drive unidirectional photoinduced electron transfer through an insulating lipid membrane is one of the most striking features of the thylakoid membrane, and recreating this property artificially is considered as one of the h…

Extreme Ultraviolet Photoresponse of Organotin-Based Photoresists with Borate Counteranions Open

Quentin Evrard, Najmeh Sadegh, Simon Mathew, Ed Zuidinga, Benjamin Watts , et al. · 2024

Organometallic tin-oxo-hydroxo cage compounds offer a promising photoresist platform for extreme ultraviolet photolithography (EUVL). Their reactivity is dominated by the facile breaking of the tin-carbon bonds upon photon or electron irra…

Elastic contact between rough surfaces: Bridging the gap between theory and experiment Open

Hans Terwisscha-Dekker, Albert M. Brouwer, Bart Weber, Daniel Bonn · 2024

Molecular Probing of the Microscopic Pressure at Contact Interfaces Open

Chao-Chun Hsu, Allen Chu‐Hsiang Hsu, Chun‐Yen Lin, Ken‐Tsung Wong, Daniel Bonn , et al. · 2024

Obtaining insights into friction at the nanoscopic level and being able to translate these into macroscopic friction behavior in real-world systems is of paramount importance in many contexts, ranging from transportation to high-precision …

XUV Absorption Spectroscopy and Photoconversion of a Tin-Oxo Cage Photoresist Open

Najmeh Sadegh, Quentin Evrard, Peter M. Kraus, Albert M. Brouwer · 2024

Extreme ultraviolet lithography has recently been introduced in high-volume production of integrated circuits for manufacturing the smallest features in high-end computer chips. Hybrid organic/inorganic materials are considered as the next…

Resolving Multi-Asperity Contacts at the Nanoscale through Super-Resolution Fluorescence Imaging Open

Begüm Demirkurt, Dina Petrova, Dharmendar Kumar Sharma, Martin Vácha, Bart Weber , et al. · 2024

Contact mechanics, spanning nanometer to tectonic scales, faces long-standing challenges arising from multiscale random roughness, which hinders experimental validation of theories. Understanding multi-asperity rough contacts is vital for …

Light-controlled morphological development of self-organizing bioinspired nanocomposites Open

Marloes H. Bistervels, Niels T. Hoogendoorn, M. Kamp, Hinco Schoenmaker, Albert M. Brouwer , et al. · 2024

Modulations in light intensity enable switching between growth modes, patterning, and sculpting of photochemically formed self-organizing nanocomposites.

Soft X-ray absorption and fragmentation of tin-oxo cage photoresists Open

Jarich Haitjema, Sonia Castellanos, Olivier Lugier, Ivan Bespalov, Rebecka Lindblad , et al. · 2024

K-edge photoexcitation of n -butyltin-oxo cage photoresist cores leads to (multiple) ionization and butyl group loss.

Super-resolution Fluorescence Imaging of Recycled Polymer Blends via Hydrogen Bond-Assisted Adsorption of a Nile Red Derivative Open

Chao-Chun Hsu, Markus Rückel, Daniel Bonn, Albert M. Brouwer · 2023

A key challenge in the recycling of multilayer plastic films of polyethylene and polyamide, as typically used for food packaging, is to assess and control the phase separation of the two types of polymers in the recycled material, the spec…

Preface for Special Issue of the 28th IUPAC Symposium on Photochemistry, Amsterdam, 2022 Open

Albert M. Brouwer · 2023

The 28th IUPAC Symposium on Photochemistry was held in Amsterdam

Electron Generation in Tin-oxo Cage Extreme Ultraviolet Photoresists Open

Najmeh Sadegh, Quentin Evrard, Nicola Mahne, Angelo Giglia, S. Nannarone , et al. · 2023

Extreme Ultraviolet Lithography photoresists undergo chemical reactions initiated by ionizing radiation. Understanding the decay pathways in the photoresist following photoionization requires knowledge about the states and species that are…

Influence of the anion in tin-based EUV photoresists properties Open

Quentin Evrard, Najmeh Sadegh, Chao Chun Hsu, Nicola Mahne, Angelo Giglia , et al. · 2023

In this work we assess the effect of the change of counter-anions on the photolithography properties of butyl-Sn12 oxo hydroxo cages. The hydroxide anions were exchanged with tetrakis(pentafluorophenyl)borate (B(PFP)4)- and (phenyl) triflu…

Molecular Probing of the Stress Activation Volume in Vapor Phase Lubricated Friction Open

Chao-Chun Hsu, Liang Peng, Feng‐Chun Hsia, Bart Weber, Daniel Bonn , et al. · 2023

When two solid objects slide over each other, friction results from the interactions between the asperities of the (invariably rough) surfaces. Lubrication happens when viscous lubricants separate the two surfaces and carry the load such t…

Correction: UV and VUV-induced fragmentation of tin-oxo cage ions Open

Jarich Haitjema, Lianjia Wu, Alexandre Giuliani, Laurent Nahon, Sonia Castellanos , et al. · 2023

Correction for ‘UV and VUV-induced fragmentation of tin-oxo cage ions’ by Jarich Haitjema et al. , Phys. Chem. Chem. Phys. , 2021, 23 , 20909–20918, https://doi.org/10.1039/D1CP03148A.

Influence of Counteranions on the Performance of Tin-based EUV Photoresists Open

Quentin Evrard, Najmeh Sadegh, Yasin Ekinci, Michaela Vockenhuber, Nicola Mahne , et al. · 2022

A positive-tone extreme ultraviolet (EUV) photoresist was obtained via the exchange of the hydroxide ions of tin-oxo-hydroxo cages with tetrakis(pentafluorophenyl)-borate. Thin films were obtained after spin coating on silicon substrates a…

Chemical Mechanisms of Metal-Based Extreme Ultraviolet Resists Open

Albert M. Brouwer · 2022

Hybrid organic/inorganic materials are considered as the Extreme Ultraviolet photoresists of the future. Compared to chemically amplified polymer-based photoresists they offer higher EUV absorption cross sections, and higher etch resistanc…

Using supramolecular machinery to engineer directional charge propagation in photoelectrochemical devices Open

Tessel Bouwens, Tijmen M. A. Bakker, Kaijian Zhu, J. Hasenack, Mees Dieperink , et al. · 2022

Local Shearing Force Measurement during Frictional Sliding Using Fluorogenic Mechanophores Open

Chao-Chun Hsu, Feng‐Chun Hsia, Bart Weber, Matthijn de Rooij, Daniel Bonn , et al. · 2022

When two macroscopic objects touch, the real contact typically consists of multiple surface asperities that are deformed under the pressure that holds the objects together. Application of a shear force makes the objects slide along each ot…

Unidirectional transmembrane photoelectron transfer with artificial metallopeptides Open

David M. Klein, Xinmeng Li, Aimee L. Boyle, Rianne van der Pol, G. J. A. Sevink , et al. · 2022

Unidirectional transmembrane electron transfer is an essential process in natural photosynthesis, where it plays a key role in separating reaction products and slowing charge recombination.¹ Making artificial molecules that func…

Unidirectional transmembrane photoelectron transfer with artificial metallopeptides Open

David M. Klein, Xinmeng Li, Aimee L. Boyle, Rianne van der Pol, G. J. A. Sevink , et al. · 2022

Unidirectional transmembrane electron transfer is an essential process in natural photosynthesis, where it plays a key role in separating reaction products and slowing charge recombination.¹ Making artificial molecules that func…

Molecular rotors to probe the local viscosity of a polymer glass Open

Elham Mirzahossein, Marion Grzelka, Zhongcheng Pan, Begüm Demirkurt, Mehdi Habibi , et al. · 2022

We investigate the local viscosity of a polymer glass around its glass transition temperature by using environment-sensitive fluorescent molecular rotors embedded in the polymer matrix. The fluorescence of the rotors depends on the local v…

Fluorine-Rich Zinc Oxoclusters as Extreme Ultraviolet Photoresists: Chemical Reactions and Lithography Performance Open

Neha Thakur, Michaela Vockenhuber, Yasin Ekinci, Benjamin Watts, Angelo Giglia , et al. · 2022

The absorption of extreme ultraviolet (EUV) radiation by a photoresist strongly depends on its atomic composition. Consequently, elements with a high EUV absorption cross section can assist in meeting the demand for higher photon absorbanc…

CCDC 2062217: Experimental Crystal Structure Determination Open

David M. Klein, Santiago Rodríguez‐Jiménez, Marlene E. Hoefnagel, Andrea Pannwitz, Amrutha Prabhakaran , et al. · 2022

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …

Noncovalently bound and mechanically interlocked systems using pillar[n]arenes Open

Kenichi Kato, Shixin Fa, Shunsuke Ohtani, Tan‐Hao Shi, Albert M. Brouwer , et al. · 2022

This review discusses pillar[ n ]arene-based MIMs such as rotaxanes, catenanes, polyrotaxanes, single-component mechanically self-locked molecules, and supramolecular polymers.

Photosubstitution in a trisheteroleptic ruthenium complex inhibits conjunctival melanoma growth in a zebrafish orthotopic xenograft model Open

Quanchi Chen, Jordi‐Amat Cuello‐Garibo, Ludovic Bretin, Liyan Zhang, Vadde Ramu , et al. · 2022

A new tris-heteroleptic photoactivated chemotherapy ruthenium complex induces apoptosis upon green light activation in a zebrafish orthothopic conjunctival melanoma xenograft model.

Rougher is more slippery: How adhesive friction decreases with increasing surface roughness due to the suppression of capillary adhesion Open

Feng‐Chun Hsia, Steve Franklin, Pierre Audebert, Albert M. Brouwer, Daniel Bonn , et al. · 2021

Friction originates at the area of real contact which depends on the (changing) surface topography. Observing and measuring the area of real contact at multi-asperity interfaces is difficult, making it challenging to quantitatively study t…

Light‐Controlled Nucleation and Shaping of Self‐Assembling Nanocomposites Open

Marloes H. Bistervels, M. Kamp, Hinco Schoenmaker, Albert M. Brouwer, Willem L. Noorduin · 2021

Controlling self‐assembly of nanocomposites is a fundamental challenge with exciting implications for next‐generation advanced functional materials. Precursors for composites can be generated photochemically, but limited insight in the und…

Shorter Alkyl Chains Enhance Molecular Diffusion and Electron Transfer Kinetics between Photosensitisers and Catalysts in CO2‐Reducing Photocatalytic Liposomes Open

David M. Klein, Santiago Rodríguez‐Jiménez, Marlene E. Hoefnagel, Andrea Pannwitz, Amrutha Prabhakaran , et al. · 2021

Covalent functionalisation with alkyl tails is a common method for supporting molecular catalysts and photosensitisers onto lipid bilayers, but the influence of the alkyl chain length on the photocatalytic performances of the resulting lip…

Extreme Ultraviolet-Excited Time-Resolved Luminescence Spectroscopy\n Using an Ultrafast Table-Top High-Harmonic Generation Source Open

Maarten Leo Simon van der Geest, Najmeh Sadegh, T.M. Meerwijk, E. I. Wooning, Lianjia Wu , et al. · 2021

We present a table-top extreme ultraviolet (XUV) beamline for measuring time-\nand frequency-resolved XUV excited optical luminescence (XEOL) with additional\nfemtosecond-resolution XUV transient absorption spectroscopy functionality. XUV\…

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