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Author/Creator:
Olivia Mello, Yang Li, Sarah Alejandra Camayd-Muñoz, Clayton DeVault, Michaël Lobet, Haoning Tang, Marko Lonçar, Eric Mazur
Published in:
Applied Physics Letters. 120(6)
We theoretically and numerically demonstrate enhanced extended superradiance using a diamond epsilon near-zero metamaterial design. Due to the large spatial coherence in this metamaterial, we experience an ultra-high superradiant decay rate enhanceme
Pitfalls and prospects of optical spectroscopy to characterize perovskite-transport layer interfaces
Published in:
Applied Physics Letters. 116(10):1-14
Perovskite photovoltaics has witnessed an unprecedented increase in power conversion efficiency over the last decade. The choice of transport layers, through which photo-generated electrons and holes are transported to electrodes, is a crucial factor
Author/Creator:
Svetlana Santer, Se-Hyeong Jung, Andrij Pich, Joachim Jelken, Claudia Pacholski, Marek Bekir, Alexey Kopyshev
Published in:
Applied Physics Letters, 118(9):091603. American Institute of Physics Publising LLC
We report on the multiple response of microgels triggered by a single optical stimulus. Under irradiation, the volume of the microgels is reversibly switched by more than 20 times. The irradiation initiates two different processes: photo-isomerizatio
Published in:
Applied Physics Letters. 89:101-113
Author/Creator:
Oracio Barbosa-García, José-Luis Maldonado, Bernhard Ecker, J. C. Nolasco, Gabriel Ramos-Ortiz, E. von Hauff
Published in:
Nolasco, J C, Ramos-Ortiz, G, Maldonado, J L, Barbosa-Garcia, O, Ecker, B & von Hauff, E L 2014, ' Polymer/cathode interface barrier limiting the open circuit voltage in polymer:fullerene organic bulk heterojunction solar cells: A quantitative analysis ', Applied Physics Letters, vol. 104, no. 4, 043308 . https://doi.org/10.1063/1.4863755
Applied Physics Letters, 104(4):043308. American Institute of Physics Publising LLC
Applied Physics Letters, 104(4):043308. American Institute of Physics Publising LLC
By exploring the origin of the saturation current (J0), we show that the polymer/cathode interface determines the open circuit voltage (Voc) in polymer:fullerene bulk heterojunction solar cells. We fabricate and characterize P3HT:PCBM solar cells and
Published in:
Applied Physics Letters. 85(6):872-874
Published in:
Applied Physics Letters. 101(14)
The trapping of germanium by silicon atoms, successively implanted into fused silica, is evidenced after thermal annealing at 1150 ° C. Rutherford backscattering spectroscopy and Raman measurements reveal a linear increase of remaining Ge concentrat
Published in:
Applied Physics Letters. 82(1):70-72
Published in:
Applied Physics Letters. 98(24)
We report a theoretical analysis of the cooling effect due to field emission from n-type PbTe, a typical thermoelectric material. We show that, by calculating the average energies of field and replacement electrons, the energy exchange in field emiss
Published in:
Applied Physics Letters. 79(13):1945-1947
We report on the performances of the mode locking of a flash-lamp-pumped Nd:YAG laser using a frequency-doubling nonlinear mirror combined with a two-photon absorber. Pulse lengths from 12 to 8 ps are generated. We show that the flat shape of the pul