ListarInstitute of Advanced Materials (INAM) por tema "external quantum efficiency"
Mostrando ítems 1-5 de 5
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2D PEA2SnI4 Inkjet-Printed Halide Perovskite LEDs on Rigid and Flexible Substrates
American Chemical Society (2022)Lead-free PEA2SnI4-based perovskite LEDs are successfully inkjet-printed on rigid and flexible substrates. Red-emitting devices (λmax = 633 nm) exhibit, under ambient conditions, a maximum external quantum efficiency ... -
Intensity-Modulated Photocurrent Spectroscopy for Solar Energy Conversion Devices: What Does a Negative Value Mean?
American Chemical Society (2020-01-10)Small perturbation techniques constitute a wide family of tools for the characterization of solar energy conversion devices such as photovoltaic cells and photoelectrochemical (PEC) cells for solar fuel production. Two ... -
Quantifying the Absorption Onset in the Quantum Efficiency of Emerging Photovoltaic Devices
Wiley (2021-04-28)The external quantum efficiency (EQE), also known as incident-photon-to-collected-electron spectra are typically used to access the energy dependent photocurrent losses for photovoltaic devices. The integral over the EQE ... -
Removing Instability-Caused Low-Frequency Features in Small Perturbation Spectra of Perovskite Solar Cells
American Chemical Society (2020-06-29)Small-perturbation frequency-domain techniques such as impedance spectroscopy and intensity-modulated photocurrent spectroscopy (IMPS) have become important methods for the investigation of the physical working mechanisms ... -
Unique Curve for the Radiative Photovoltage Deficit Caused by the Urbach Tail
American Chemical Society (2021-08-12)The photovoltage Voc of high-performance solar cells such as GaAs and metal halide perovskites is affected by the exponential Urbach tail in the absorption spectrum, with an energy parameter EU. It has been observed ...