Perovskite solar cells (PSCs) have shown remarkable progress with the rapid increase in power conversion efficiency to reach 25.7% over the last few years. However, it is
Customer ServiceAfterward, the fundamental origins of hysteresis in perovskite solar cells are aimed at discussing the ferroelectric polarization, ion migration, ion trapping, and capacitive effect in perovskite solar devices. The recent breakthroughs to minimize the hysteresis in the perovskite solar cell are also incorporated to gauge the advancement in this
Customer ServiceHere we explore the origin of hysteresis behavior in perovskite solar cells by investigating the defects density of states. In order to reveal this anomalous characteristic, low-temperature capacitance spectroscopy and current-voltage analysis are performed. The present study shows that the open-circuit voltage and hysteresis tend to decrease as the temperature
Customer ServiceIn this work, perovskite solar cells (PSCs) with different transport layers were fabricated to understand the hysteresis phenomenon under a series of scan rates. The
Customer ServiceHumidity is one of the main environmental factors that limits performance and stability of perovskite solar cells (PSC); it plays a critical role during the preparation of the perovskite film, influencing the crystal growth. In this work, it is investigated the effect of the relative humidity (RH) and type of atmosphere (nitrogen vs air) used during the deposition of
Customer ServiceHalide perovskite materials have reached important milestones in the photovoltaic field, positioning them as realistic alternatives to conventional solar cells. However, unavoidable kinetic phenomena have represented a major concern for reliable steady-state performance assessment from standard current–voltage measurements.
Customer ServiceThe impact of hysteresis on the power conversion efficiency (PCE) of perovskite solar cells (PSCs) still faces uncertainties despite the rapid development of perovskite photovoltaics. Although ion migration in perovskites is regarded as the chief culprit for hysteresis, charge carrier recombination pathways in PSCs are proposed to be necessary for the
Customer ServiceSuccessfully tuning of the hysteresis effect clarifies the critical importance of the c-TiO 2 /perovskite interface in controlling the hysteretic trends observed, providing important insights towards the understanding of this rapidly
Customer ServiceThe issue of hysteresis in perovskite solar cells has now been convincingly linked to the presence of mobile ions within the perovskite layer. Here we test the limits of the ionic theory by attempting to account for a number of exotic characterization results using a
Customer ServiceHigh-performance perovskite solar cells (PSCs) based on organometal halide perovskite have emerged in the past five years as excellent devices for harvesting solar energy. Some remaining challenges should be resolved to continue the momentum in their development. The photocurrent density–voltage (J−V) responses of the PSCs demonstrate anomalous
Customer ServiceAfterward, the fundamental origins of hysteresis in perovskite solar cells are aimed at discussing the ferroelectric polarization, ion migration, ion trapping, and capacitive effect in perovskite solar devices. The recent
Customer ServiceHere, we explore the low-temperature effect on perovskite solar cells made up of the inorganic hole transport layer and fullerene-based electron transport layer. We
Customer ServicePerovskite solar cells (PSCs) have shown remarkable progress with the rapid increase in power conversion efficiency to reach 25.7% over the last few years. However, it is difficult to precisely...
Customer ServiceHalide perovskite materials have reached important milestones in the photovoltaic field, positioning them as realistic alternatives to conventional solar cells. However, unavoidable kinetic phenomena have represented a major concern
Customer ServiceIon migration has been reported to be one of the main reasons for hysteresis in the current–voltage (J–V) characteristics of perovskite solar cells. We investigate the interplay between ionic conduction and hysteresis types by studying Cs0.05(FA0.83MA0.17)0.95Pb(I0.9Br0.1)3 triple-cation perovskite solar cells through a
Customer ServiceOrganic-inorganic hybrid perovskite solar cells (PSC) have demonstrated impressive performance improvement. Among the various characteristics, the time-dependent current-voltage (J-V) hysteresis
Customer ServiceHere, we explore the low-temperature effect on perovskite solar cells made up of the inorganic hole transport layer and fullerene-based electron transport layer. We investigate the comparative behavior of hysteresis at low temperatures in dark and illuminated condition by calculating hysteresis index. Further the hysteresis index has been also
Customer ServiceOrganic–inorganic hybrid perovskite solar cells have attracted great attention due to their high power conversion efficiency and low cost. However, an anomalous hysteresis effect exists in the perovskite solar cells, especially with TiO 2 as the n-type electron extraction layer. In this communication, we prepare two kinds of TiO 2 compact layers using Atomic Layer
Customer ServiceFabrication of perovskite solar cells based on antisolvent treatment has attracted enormous attentions due to the great potential of achieving better crystallization and relatively high efficiency of the solar cells. Two main challenges to fabricating perovskite solar cells are hysteresis and their sensitivity to preliminary conditions, especially air moisture and oxygen.
Customer ServiceBy employing a charge transport model of coupled ion-electron conduction in a perovskite solar cell, we show that EA for the ion species responsible for hysteresis can be obtained directly
Customer ServiceThe issue of hysteresis in perovskite solar cells has now been convincingly linked to the presence of mobile ions within the perovskite layer. Here we test the limits of the ionic theory by
Customer ServiceWe hypothesize three possible origins of the effect and discuss its implications on device efficiency and future research directions. Understanding and resolving the hysteresis is essential for further progress and is likely to lead to a further step
Customer ServiceIn this work, perovskite solar cells (PSCs) with different transport layers were fabricated to understand the hysteresis phenomenon under a series of scan rates. The experimental results show...
Customer ServiceWe hypothesize three possible origins of the effect and discuss its implications on device efficiency and future research directions. Understanding and resolving the hysteresis is essential for further progress and is likely to lead to a further step improvement in performance.
Customer ServiceHysteresis behavior is a unique and significant feature of perovskite solar cells (PSCs), which is due to the slow dynamics of mobile ions inside the perovskite film 1,2,3,4,5,6,7,8,9 yields
Customer ServiceBy employing a charge transport model of coupled ion-electron conduction in a perovskite solar cell, we show that EA for the ion species responsible for hysteresis can be obtained directly from measurements of the temp. variation of the scan-rate dependence of the short-circuit current and of the hysteresis factor H. This argument is validated
Customer ServiceA circuit model simulates the hysteresis effect in perovskite PV cells using nonlinear capacitors, with a general expression derived. Several types of hysteresis effects can be simulated by adjusting the parameters of this model.
Customer ServiceSuccessfully tuning of the hysteresis effect clarifies the critical importance of the c-TiO 2 /perovskite interface in controlling the hysteretic trends observed, providing important insights towards the understanding of this rapidly developing photovoltaic technology.
Customer ServiceJ–V hysteresis brings great challenges to the performance and stable measurement of perovskite solar cells (PSCs). One of the factors affecting the J–V hysteresis of PSCs is the morphology and optoelectronic properties of the electron transport layer (ETL). In this study, PSC devices with negligible hysteresis effects are obtained using a spray-coated tin
Customer ServiceThe scan rate was kept constant to get the exact effect of defect of states as the scan rate also leads to variation in the hysteresis in the device ( Tress et al., 2015 ). The scanning rate is one of the reasons for hysteresis in perovskite solar cells.
Hysteresis was shown to be caused by ion accumulation. Due to the built-in electric field of perovskite, ions accumulate at both sides of the interface and form an ion-induced electric field. Therefore, the J–V curves are not the same under the forward and reverse scanning.
Experimental verification shows that the proposed circuit model has high simulation accuracy and can simulate various hysteresis effects of perovskite photovoltaic cells. The model can provide simulation support for understanding the generation of hysteresis effects in perovskite solar cells and their engineering applications.
In this work, perovskite solar cells (PSCs) with different transport layers were fabricated to understand the hysteresis phenomenon under a series of scan rates. The experimental results show that the hysteresis phenomenon would be affected by the dielectric constant of transport layers and scan rate significantly.
Volume 278, December 2024, 113182 A circuit model simulates the hysteresis effect in perovskite PV cells using nonlinear capacitors, with a general expression derived. Several types of hysteresis effects can be simulated by adjusting the parameters of this model.
We have studied the normal and inverted hysteresis behavior of perovskite solar cells due to ion migration phenomena by varying the hysteresis-related parameters such as scan rate, charge carrier mobility, and pre-bias voltages. Also, we extend the drift–diffusion model by introducing new equations related to the ionic flux.
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