Impedance Spectroscopy of Metal Halide Perovskite Solar Cells from the Perspective of Equivalent Circuits

Guerrero, Antonio; Bisquert, Juan; García-Belmonte, Germà

doi:10.1021/acs.chemrev.1c00214

Cited by 161 publications

(199 citation statements)

References 304 publications

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“…We use the methods of equivalent circuits to represent impedance spectroscopy data and obtain an interpretation of the system. 8,10,11 An important feature of the practical analysis of impedance spectroscopy is that the circuit elements change exponentially with the voltage. Hence a variety of spectra are possible in a single system, according to the evolution of the individual elements.…”

Section: Introductionmentioning

confidence: 99%

Chemical Inductor

2022

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A multitude of chemical, biological, and material systems present an inductive behavior that is not electromagnetic in origin. Here, it is termed a chemical inductor. We show that the structure of the chemical inductor consists of a twodimensional system that couples a fast conduction mode and a slowing down element. Therefore, it is generally defined in dynamical terms rather than by a specific physicochemical mechanism. The chemical inductor produces many familiar features in electrochemical reactions, including catalytic, electrodeposition, and corrosion reactions in batteries and fuel cells, and in solid-state semiconductor devices such as solar cells, organic light-emitting diodes, and memristors. It generates the widespread phenomenon of negative capacitance, it causes negative spikes in voltage transient measurements, and it creates inverted hysteresis effects in current−voltage curves and cyclic voltammetry. Furthermore, it determines stability, bifurcations, and chaotic properties associated to selfsustained oscillations in biological neurons and electrochemical systems. As these properties emerge in different types of measurement techniques such as impedance spectroscopy and time-transient decays, the chemical inductor becomes a useful framework for the interpretation of the electrical, optoelectronic, and electrochemical responses in a wide variety of systems. In the paper, we describe the general dynamical structure of the chemical inductor and we comment on a broad range of examples from different research areas.

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Section: Introductionmentioning

confidence: 99%

Chemical Inductor

2022

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“…Figure 1b−e shows the impedance spectra at different applied voltage from 0.1 to 0.9 V. At low voltage the device responds with a double RC arc as is found in solar cell perovskite devices. 15 At 0.3 V and higher voltages a large inductor component at low frequency is formed that is also typical of perovskite solar cells at high voltage, which causes a negative capacitance effect. 9,41−43 This feature has been reported before in perovskite memristors.…”

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“…This circuit has been well-described before in relation to inverted hysteresis in perovskite solar cells. 9,15,59 The shape of the spectra are shown in Figures 3b and SI6. In the CV behavior we obtain that all models 1, 2, and 3 show inductive or "inverted" hysteresis 10−14 (see Figures 2b,c and SI4c−f).…”

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Physical Model for the Current–Voltage Hysteresis and Impedance of Halide Perovskite Memristors

et al. 2022

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An investigation of the kinetic behavior of MAPbI 3 memristors shows that the onset voltage to a high conducting state depends strongly on the voltage sweep rate, and the impedance spectra generate complex capacitive and inductive patterns. We develop a dynamic model to describe these features and obtain physical insight into the coupling of ionic and electronic properties that produce the resistive switching behavior. The model separates the memristive response into distinct diffusion and transitionstate-formation steps that describe well the experimental current− voltage curves at different scan rates and impedance spectra. The ac impedance analysis shows that the halide perovskite memristor response contains the composition of two inductive processes that provide a huge negative capacitance associated with inverted hysteresis. The results provide a new approach to understand some typical characteristics of halide perovskite devices, such as the inductive behavior and hysteresis effects, according to the time scales of internal processes.

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“…The Nyquist plots as well as the equivalent circuit model are shown in Figure 7a, in which R S is the series resistance and R rec is the recombination resistance. [53][54][55] The fitting results were listed in Table S1, Supporting Information. The solar cells with TeDA treatment showed a larger R rec and a Parameters (V OCopen-circuit voltage; J SCshort-circuit current density; FF -fill factor; PCEpower conversion efficiency), scan rate 0.1 V s À1 ; b) Mean values and one standard deviation calculated from the values obtained for 14 independent devices; c) Best-performing device.…”

Section: Resultsmentioning

confidence: 99%

“…The Nyquist plots as well as the equivalent circuit model are shown in Figure a, in which R S is the series resistance and R rec is the recombination resistance. [ 53–55 ] The fitting results were listed in Table S1, Supporting Information. The solar cells with TeDA treatment showed a larger R rec and a smaller R S in comparison with the devices based on bare NiO X , which indicates a more efficient charge transfer and less recombination reaction.…”

Section: Resultsmentioning

confidence: 99%

Impact of Nickel Oxide/Perovskite Interfacial Contact on the Crystallization and Photovoltaic Performance of Perovskite Solar Cells

Liu

Wang

et al. 2022

Solar RRL

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Metal-halide perovskites have attracted much attention for their excellent optoelectronic properties, such as tunable bandgap, long carrier lifetime, low cost, and lowtemperature solution-processibility. In just a few years, the power conversion efficiency (PCE) of perovskite solar cells (PSCs) has rapidly increased from 3.8% to more than 25%, [1,2] making them one of the most promising candidates for the nextgeneration low-cost photovoltaic technologies. This rapid progress is largely due to the careful modification of perovskite compositions, delicate design of device configurations, and an in-depth understanding of interfacial interactions, etc. [3][4][5][6] Inverted PSCs (p-i-n structure) have attracted increasing interest from both research and industry in recent years due to their little hysteresis and fatigue phenomena, low materials cost, simple preparation process, and readily scalable for largearea modules fabrication. [7][8][9][10][11] For p-i-n PSCs, the selection of hole transport layers (HTLs) is one of the most crucial steps for obtaining excellent device performance. p-type semiconductors, such as poly(3,4-ethylenedioxythiophene):poly-(styrenesulfonate) (PEDOT:PSS), polytriarylamine (PTAA), or nickel oxide (NiO X ) are commonly used HTLs to extract and transfer holes from the perovskite to the contact electrode. However, PEDOT: PSS has disadvantages in sensitivity to moisture because of its acidity, which potentially leads to the degradation of perovskites. [12] The poor wettability of PTAA makes the perovskite difficult to form dense films, which makes the devices prone to short circuits. [13] In contrast, NiO X is advantageous as an HTL due to its large bandgap (3.5-3.9 eV), deep valence band maximum (5.1-5.4 eV), high mobility (%10 À3 cm 2 V À1 s À1 ), [14][15][16] and intrinsic superior stability of the inorganic nature. In addition, NiO X HTL can be fabricated by a variety of scalable processing routes including chemical vapor deposition, [17] sputtering, [18,19] spray pyrolysis, [20][21][22] electron beam evaporation, [23] and so on. Among them, spray pyrolysis is a method that can fabricate large-area thin films at low cost, which is promising for scaling up PSCs. However, the solar cell performance based on spraycoated NiO X is inferior to the state-of-the-art PSCs, which urges the researchers to find a proper way to improve their performance.

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Impedance Spectroscopy of Metal Halide Perovskite Solar Cells from the Perspective of Equivalent Circuits

Cited by 161 publications

References 304 publications

Chemical Inductor

Chemical Inductor

Physical Model for the Current–Voltage Hysteresis and Impedance of Halide Perovskite Memristors

Impact of Nickel Oxide/Perovskite Interfacial Contact on the Crystallization and Photovoltaic Performance of Perovskite Solar Cells

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