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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 ...
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 ...
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” ...
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 ...
Shelf Life Degradation of Bulk Heterojunction Solar Cells: Intrinsic Evolution of Charge Transfer Complex
(Wiley, 2015)
Achievement of long-term stability of organic photovoltaics is currently one of the major topics for this technology to reach maturity. Most of the techniques used to reveal degradation pathways are destructive and/or do ...
Recombination reduction on lead halide perovskite solar cells based on low temperature synthesized hierarchical TiO2 nanorods
(Royal Society of Chemistry, 2016)
Intensive research on the electron transport material (ETM) has been pursued to improve the efficiency of perovskite solar cells (PSCs) and decrease their cost. More importantly, the role of the ETM layer is not yet fully ...
Diffractive control of 3D multifilamentation in fused silica with micrometric resolution
(Optical Society of America, 2016)
We show that a simple diffractive phase element (DPE) can be used to manipulate at will the positions and energy of multiple filaments generated in fused silica under femtosecond pulsed illumination. The method allows ...
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 ...
Analysis of the UV ozone-treated SnO2 electron transporting layer in planar perovskite solar cells for high performance and reduced hysteresis
(Wiley - BlackwellWiley, 2019)
Tin oxide (SnO2) is widely used as electron transporting layer (ETL) in perovskite solar cells
(PSCs) because its good transparency, band alignment to perovskite and stability. The interface
between the ETL and the ...