Enviaments recents

  • Low-temperature colloidal synthesis of CuBiS2 nanocrystals for optoelectronic devices 

    Wang, Jian-Jun; Akgul, Zafer; Bi, Yu; Christodouloua, Sotirios; Konstantatos, Gerasimos (Royal Society of Chemistry, 2017-11-11)
    Article
    Accés restringit per política de l'editorial
    A new facile colloidal synthesis of CuBiS2 (CBS) nanocrystals with monodispersed size and good quality has been developed. The CBS nanocrystal films was deposited by solid-state ligand exchange and their field effect ...
  • Photo-FETs: phototransistors enabled by 2D and 0D nanomaterials 

    Kufer, Dominik; Konstantatos, Gerasimos (ACS, 2016-10-27)
    Article
    Accés obert
    The large diversity of applications in our daily lives that rely on photodetection technology requires photodetectors with distinct properties. The choice of an adequate photodetecting system depends on its application, ...
  • MoS2-HgTe Quantum Dot Hybrid Photodetectors beyond 2 μm 

    Huo, Nengjie; Gupta, Shuchi; Konstantatos, Gerasimos (Wiley, 2017-02-01)
    Article
    Accés restringit per política de l'editorial
    Mercury telluride (HgTe) colloidal quantum dots (CQDs) have been developed as promising materials for the short and mid-wave infrared photodetection applications because of their low cost, solution processing and size ...
  • Suppressing Deep Traps in PbS Colloidal Quantum Dots via Facile Iodide Substitutional Doping for Solar Cells with Efficiency >10% 

    Stavrinadis, Alexandros; Pradhan, Santanu; Papagiorgis, Paris; Itskos, Grigorios; Konstantatos, Konstantatos (ACS, 2017-02-28)
    Article
    Accés restringit per política de l'editorial
    Surface passivation of PbS colloidal quantum dots (QDs) with iodide has been used in highly efficient solar cells. Iodide passivation is typically achieved by ligand exchange processes on QD films. Complementary to this ...
  • Solution-Processed, Solid-State Solar Cells based on Environmentally Friendly AgBiS2 Nanocrystals 

    Bernechea, María; Miller, Nichole Cates; Xercavins, Guillem; So, David; Stavrinadis, Alexandros; Konstantatos, Konstantatos (Nature, 2016-06-26)
    Article
    Accés obert
    Solution-processed inorganic solar cells are a promising low-cost alternative to firstgeneration solar cells.1,2 Solution processing at low temperatures and the use of nontoxic and abundant elements can help minimize ...
  • Solution-Processed, Solid-State Solar Cells based on Environmentally Friendly AgBiS2 Nanocrystals 

    Bernechea, María; Miller, Nichole Cates; Xercavins, Guillem; So, David; Stavrinadis, Alexandros; Konstantatos, Konstantatos (Nature, 2016-06-20)
    Article
    Accés obert
    Solution-processed inorganic solar cells are a promising low-cost alternative to firstgeneration solar cells.1,2 Solution processing at low temperatures and the use of nontoxic and abundant elements can help minimize ...
  • Strategies for controlled electronic doping of colloidal quantum dots 

    Stavrinadis, Alexandros; Konstantatos, Gerasimos (Wiley, 2016-01-08)
    Article
    Accés obert
    Over the last several years tremendous progressed progress has been made in incorporating Colloidal Quantum Dots (CQDs) as photoactive components in optoelectronic devices. A significant part of that progress is associated ...
  • Solid-State Colloidal CuInS2 Quantum Dot Solar Bulk Heterojunctions 

    So, David; Pradhan, Santanu; Konstantatos, Gerasimos (Royal Society of Chemistry, 2016-08-29)
    Article
    Accés obert
    Colloidal copper indium sulfide (CIS) nanocrystals (NCs) are Pb- and Cd-free alternatives for use as absorbers in quantum dot solar cells. In a heterojunction with TiO2, non-annealed ligand-exchanged CIS NCs form solar ...
  • The Role of Surface Passivation for Efficient and Photostable PbS Quantum Dot Solar Cells 

    Cao, Yiming; Stavrinadis, Alexandros; Lasanta, Tania; So, David; Konstantatos, Gerasimos (Nature, 2016-04-04)
    Article
    Accés obert
  • Understanding light trapping by resonant coupling to guided modes and the importance of the mode profile 

    Beck, Fiona J.; Stavrinadis, Alexandros; Lasanta, Tania; Szczepanick, John-Paul; Konstantatos, Gerasimos (OSA, 2016-01-11)
    Article
    Accés obert
    We present a simple conceptual model describing the absorption enhancement provided by diffraction gratings due to resonant coupling to guided modes in a multi-layered structure. In doing so, we provide insight into why ...
  • Highly Sensitive, Encapsulated MoS2 Photodetector with Gate Controllable Gain and Speed 

    Kufer, Dominik; Konstantatos, Gerasimos (ACS, 2015-10-26)
    Article
    Accés restringit per política de l'editorial
    Semiconducting, two-dimensional molybdenum disulfide (MoS2) is considered a promising new material for highly sensitive photodetection, because of its atomically thin profile and favorable bandgap. However, reported ...
  • Large-Area Plasmonic-Crystal−Hot-Electron-Based Photodetectors 

    García de Arquer, F. Pelayo; Mihi, Agustín; Konstantatos, Gerasimos (ACS, 2015-06-11)
    Article
    Accés obert
    In view of their exciting optoelectronic light− matter interaction properties, plasmonic−hot-electron devices have attracted significant attention during the last few years as a novel route for photodetection and ...

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