Now showing items 1-12 of 358

    • Cation disorder engineering yields AgBiS2 nanocrystals with enhanced optical absorption for efficient ultrathin solar cells 

      Wang, Yongjie; Kavanagh, Seán R.; Burgués-Ceballos, Ignasi; Walsh, Aron; Scanlon, David O.; Konstantatos, Gerasimos (Nature, 2022-02-14)
      Article
      Restricted access - publisher's policy
      Strong optical absorption by a semiconductor is a highly desirable property for many optoelectronic and photovoltaic applications. The optimal thickness of a semiconductor absorber is primarily determined by its absorption ...
    • Human CASPR2 antibodies reversibly alter memory and the CASPR2 protein complex 

      Joubert, Bastien; Petit-Pedrol, Mar; Planagumà, Jesús; Mannara, Francesco; Radosevic, Marija; Marsal, Maria; Maudes, Estibaliz; García-Serra, Anna; Aguilar, Esther; Andrés-Bilbé, Alba; Gasull, Xavier; Loza-Alvarez, Pablo; Sabater, Lidia; Rosenfeld, Myrna R.; Dalmau, Josep (Wiley, 2022-03-07)
      Article
      Restricted access - publisher's policy
      Objective The encephalitis associated with antibodies against contactin-associated protein-like 2 (CASPR2) is presumably antibody-mediated but the antibody effects and whether they cause behavioral alterations are not ...
    • Mixed AgBiS2 nanocrystals for photovoltaics and photodetectors 

      Burgués-Ceballos, Ignasi; Wang, Yongjie; Konstantatos, Gerasimos (Royal Society of Chemistry, 2022-03-03)
      Article
      Open Access
      Heavy-metal-free colloidal nanocrystals are gaining due attention as low-cost, semiconducting materials for solution-processed optoelectronic applications. One common limitation of such materials is their limited carrier ...
    • A systematic construction of Gaussian basis sets for the description of laser field ionization and high-harmonic generation 

      Woźniak, Aleksander; Lesiuk, Michal; Przybytek, Michal; Efimov, Dmitry K.; Prauzner-Bechcicki, Jakub S.; Mandrysz, Michal; Ciappina, Marcelo; Pisanty, Emilio; Zakrzewski, Jakub; Lewenstein, Maciej; Moszyński, Robert (AIP, 2021-03-02)
      Article
      Open Access
      A precise understanding of mechanisms governing the dynamics of electrons in atoms and molecules subjected to intense laser fields has a key importance for the description of attosecond processes such as the high-harmonic ...
    • Generation of optical Schrödinger cat states in intense laser-matter interactions 

      Lewenstein, M.; Ciappina, M. F.; Pisanty, E.; Rivera-Dean, J.; Stammer, P.; Lamprou, Th.; Tzallas, P. (Springer Nature, 2021-08-21)
      Article
      Open Access
      The physics of intense laser–matter interactions1,2 is described by treating the light pulses classically, anticipating no need to access optical measurements beyond the classical limit. However, the quantum nature of the ...
    • Highly efficient, ultrathin, Cd-free kesterite solar cells in superstrate configuration enabled by band level tuning via Ag incorporation 

      Wang, Zhuoran; Wang, Yongjie; Konstantatos, Gerasimos (Elsevier, 2022-04-01)
      Article
      Open Access
      Kesterite, or Cu2ZnSn(S,Se)4 (CZTS) is promising in developing sustainable PV technology due to its earth-abundant, non-toxic composition. However, issues including instability of interface, high density of defects that ...
    • Widefield SERS for High-Throughput Nanoparticle Screening 

      Liebel, Matz; Calderon, Irene; Pazos-Perez, Nicolas; van Hulst, Niek F.; Alvarez-Puebla, Ramon A (Wiley, 2022-02-02)
      Article
      Restricted access - publisher's policy
      Surface-enhanced Raman scattering (SERS) imaging is a powerful technology with unprecedent potential for ultrasensitive chemical analysis. Point-by-point scanning and often excessively long spectral acquisition-times hamper ...
    • Surface-Enhanced Raman Scattering Holography 

      Liebel, Matz; Pazos-Perez, Nicolas; van Hulst, Niek F.; Alvarez-Puebla, A. (nature, 2020-09-15)
      Article
      Open Access
      Nanometric probes based on surface-enhanced Raman scattering (SERS) are promising candidates for all-optical environmental, biological and technological sensing applications with intrinsic quantitative molecular specificity. ...
    • Fast photochronoamperometry of photosynthetic complexes for biosensors and electron transport studies 

      López-Ortiz, Manuel; Zamora, Ricardo A.; Remesh, Vikas; Hu, Chen; Croce, Roberta; van Hulst, Niek; Gorostiza, Pau (ACS, 2021-02-16)
      Article
      Open Access
      Photosynthetic reactions in plants, algae, and cyanobacteria are driven by photosystem I and photosystem II complexes, which specifically reduce or oxidize partner redox biomolecules. Photosynthetic complexes can also bind ...
    • Electron diffraction by vacuum fluctuations 

      Giulio, Valerio Di; García de Abajo, F Javier (IOP, 2020-10-29)
      Article
      Open Access
      Vacuum fluctuations are known to produce electron diffraction leading to decoherence and self-interference. These effects have so far been studied as either an extension of the Aharonov–Bohm effect in front of a planar ...
    • Selective excitation of individual nanoantennas by pure spectral phase control in the ultrafast coherent regime 

      Accanto, Nicolò; Roque, Pablo M. de; Galvan-Sosa, Marcial; Hancu, Ion M.; van Hulst, Niek F. (De Gruyer, 2020-09-07)
      Article
      Open Access
      Coherent control is an ingenious tactic to steer a system to a desired optimal state by tailoring the phase of an incident ultrashort laser pulse. A relevant process is the two-photon–induced photoluminescence (TPPL) of ...
    • Phase control of plasmon enhanced two-photon photoluminescence in resonant gold nanoantennas 

      Remesh, Vikas; Stührenberg, Michael; Saemisch, Lisa; Accanto, Nicolò; van Hulst, Niek F. (AIP, 2018-08-08)
      Article
      Open Access
      Plasmonic nanoantennas emit two-photon photoluminescence, which is much stronger than their second harmonic generation. Unfortunately, luminescence is an incoherent process and therefore generally not explored for nanoscale ...