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Solar Fuels. Photocatalytic Hydrogen Generation
(American Chemical Society, 2013)
The necessity for developing clean energy technology has led to the surge in renewable energy research. A major effort is in discovering new approaches for producing transportable fuels. Hydrogen, which possesses the highest ...
Intensity-Modulated Photocurrent Spectroscopy and Its Application to Perovskite Solar Cells
(American Chemical Society, 2020-09-23)
Frequency domain techniques are useful tools to characterize processes occurring on different time scales in solar cells and solar fuel devices. Intensity-modulated photocurrent spectroscopy (IMPS) is one such technique ...
Ultrathin Acoustic Parity-Time Symmetric Metasurface Cloak
(American Association for the Advancement of Science, 2019)
Invisibility or unhearability cloaks have beenmade possible by using metamaterials enabling light or sound to flow around obstacle
without the trace of reflections or shadows. Metamaterials are known for being flexible ...
Interfacial Mechanism for Efficient Resistive Switching in Ruddlesden-Popper Perovskites for Non-volatile Memories
(American Chemical Society, 2020-01-16)
Ion migration, one origin of current–voltage hysteresis, is the bane of halide perovskite optoelectronics. Herein, we leverage this unwelcome trait to unlock new opportunities for resistive switching using layered ...
Ionic Dipolar Switching Hinders Charge Collection in Perovskite Solar Cells with Normal and Inverted Hysteresis
(Elsevier, 2019-06-15)
Drift-diffusion modeling of the ionic dipole switching from the measurement of fast
scanned and long pre-biased electrical response is proposed as a novel protocol for
evaluation of limit hysteretic effects in perovskite ...
Temperature dependence of anomalous protonic and superprotonic transport properties in mixed salts based on CsH2PO4
(Royal Society of Chemistry, 2019)
We present an experimental study and a theoretical interpretation of the temperature dependence of
the transport properties of doped CsH2PO4 salts in both protonic and superprotonic phases. Cesium
phosphate based solid ...
Bidirectional frequency-shifting loop for dual-comb spectroscopy
(Optical Society of America, 2019)
We present a bidirectional recirculating frequency-shifting
loop, seeded by a continuous-wave (cw) laser, to perform
multi-heterodyne interferometry. This fiber-optic system
generates two counter-propagating “acousto-optic” ...
Partial coverage methylammonium lead bromide films for solar cell application
(Elsevier, 2019-11-30)
Hybrid perovskite compounds as methylammonium lead halides are currently been
investigated for different optoelectronic applications. CH3NH3PbBr3 is a promising
member because of its electronic structure and large bandgap ...
Light Capacitances in Silicon and Perovskite Solar Cells
(Elsevier, 2019)
The framework on which the physics of silicon solar cells (SiSCs) is based robustly predicts
dependences of capacitance on light intensity and voltage, even when most recent innovations
are considered as the incorporation ...
Are the Accompanying Cations of Doping Anions Influential in Conducting Organic Polymers? The Case of the Popular PEDOT
(Wiley, 2019-11-13)
Conducting organic polymers (COPs) are made of a conjugated polymer backbone supporting a certain degree of oxidation. These positive charges are compensated by the doping anions that are introduced into the polymer synthesis ...