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Effect of Environmental Humidity on the Electrical Properties of Lead Halide Perovskites
(ACS, 2018-12)
In large quantities, water is detrimental to lead halide perovskite solar cells, mainly because of the decomposition of the perovskite layer. In contrast, the presence of small quantities of water has been observed to play ...
Analysis of the Influence of Selective Contact Heterojunctions on the Performance of Perovskite Solar Cells
(ACS, 2018-03)
Knowledge of the mechanisms that take place at the selective contacts, located at the
charge-transport-layer (CTL)/perovskite heterojunctions, is crucial for the optimization
of perovskite solar cells. Anomalous high ...
Influence of Charge Transport Layers on Open-Circuit Voltage and Hysteresis in Perovskite Solar Cells
(Elsevier, 2018-04)
Perovskite materials have experienced an impressive improvement in photovoltaic performance due to their unique combination of optoelectronic properties. Their remarkable progression, facilitated by the use of different ...
Operation Mechanism of Perovskite Quantum Dot Solar Cells Probed by Impedance Spectroscopy
(American Chemical Society, 2018)
We fabricated perovskite quantum dot solar cells (PQDSCs) and varied the thickness of the QD layer by controlling the number of deposition cycles; the cells were systematically investigated with impedance spectroscopy. ...
Homeopathic Perovskite Solar Cells: Effect of Humidity during Fabrication on the Performance and Stability of the Device
(American Chemical Society, 2018-02)
Rapid degradation in humid environments is a major drawback of methylammonium lead iodide (CH3NH3PbI3), which is the archetypical component of perovskite solar cells. In this work, we have investigated the aging and ...
Effects of Frequency Dependence of the External Quantum Efficiency of Perovskite Solar Cells
(American Chemical Society, 2018-05)
Perovskite solar cells are known to show very long response time scales, on the order of milliseconds to seconds. This generates considerable doubt over the validity of the measured external quantum efficiency (EQE) and ...