Interaction engineering in organic–inorganic hybrid perovskite solar cells

Zhu, Mingzhe; Li, Bingyu; Zhang, Jiakang; Sun, Yuqian; Guo, Wei‐Si; Zhou, Zhongmin; Pang, Shuping; Yan, Yanfa

doi:10.1039/d0mh00745e

Cited by 40 publications

(47 citation statements)

References 247 publications

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“…The synchronization between X element and lead may lessening the density of lead associated defects. [47] Hence, the decrease Figure S6 (Supporting Information) shows the energy-level diagram for the MoX 2 nanostructure-suspended perovskite layer of the ITO/PEDOT:PSS/perovskite-MoX 2 /PCBM/LiF/Al structure. In the PSC device, perovskite layer is a light absorber that creates charge dispersion, initiating holes at the i-p junction and electrons at the n-i junction.…”

Section: Perovskite Solar Cellsmentioning

confidence: 99%

Impact of Molybdenum Dichalcogenides on the Active and Hole‐Transport Layers for Perovskite Solar Cells, X‐Ray Detectors, and Photodetectors

Vikraman

Liu

Hussain

et al. 2022

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The interface architectures of inorganic–organic halide perovskite‐based devices play key roles in achieving high performances with these devices. Indeed, the perovskite layer is essential for synergistic interactions with the other practical modules of these devices, such as the hole‐/electron‐transfer layers. In this work, a heterostructure geometry comprising transition‐metal dichalcogenides (TMDs) of molybdenum dichalcogenides (MoX2 = MoS2, MoSe2, and MoTe2) and perovskite‐ or hole‐transfer layers is prepared to achieve improved device characteristics of perovskite solar cells (PSCs), X‐ray detectors, and photodetectors. A superior efficiency of 11.36% is realized for the active layer with MoTe2 in the PSC device. Moreover, X‐ray detectors using modulated MoTe2 nanostructures in the active layers achieve 296 nA cm−2, 3.12 mA (Gy cm2)−1 and 3.32 × 10–4 cm2 V−1 s−1 of collected current density, sensitivity, and mobility, respectively. The fabricated photodetector produces a high photoresponsivity of 956 mA W−1 for a visible light source, with an excellent external quantum efficiency of 160% for the perovskite layer containing MoSe2 nanostructures. Density functional theory calculations are made for pure and MoX2 doped perovskites’ geometrical, density of states and optical properties variations evidently. Thus, the present study paves the way for using perovskite‐based devices modified by TMDs to develop highly efficient semiconductor devices.

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Section: Perovskite Solar Cellsmentioning

confidence: 99%

Impact of Molybdenum Dichalcogenides on the Active and Hole‐Transport Layers for Perovskite Solar Cells, X‐Ray Detectors, and Photodetectors

Vikraman

Liu

Hussain

et al. 2022

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“…[40,41] The Dion-Jacobson (DJ) phase (A′BX 4 for n = 1) is based on diammonium cations (Figure 2b) that form hydrogen bonds on both sides with the vicinal inorganic sheets. [26,27] Linear diamine spacers cause a partial or no lateral offset of the metal halide sheets as seen in the RP phase, with the adjacent layers usually stacked on top of each other, as pictured in Figure 1. DJ perovskites typically exhibit a smaller interlayer distance and a lower structural distortion which is associated with a lower bandgap, as compared to their RP counterpart.…”

Section: Layered Perovskite Structuresmentioning

confidence: 99%

Layered Perovskites in Solar Cells: Structure, Optoelectronic Properties, and Device Design

Sirbu

Balogun

Milot

et al. 2021

Advanced Energy Materials

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optoelectronic properties akin to industrial juggernauts gallium arsenide and silicon. [1,2] Yet, the materials are compatible with solution-processing techniques such as inkjet printing and spray coating. [3] This unprecedented combination has led to the development of solar cells which already show power conversion efficiencies of over 25%, similar to state-of-the-art poly-Si and other thin-film technologies, in just over 10 years of development. [4] Hybrid perovskites are particularly interesting for indoor applications, with impressive efficiencies of over 35% demonstrated under indoor illumination which may prove a viable option to power the ever expanding Internet of Things. [5] Rather than competing with the current technology giants, perovskites can work together with other solar cell technologies in a tandem configuration. Record efficiencies of over 29% for silicon-perovskite tandem solar cells have already been reported and further progress is expected in the near future. [6] Although perovskite solar cells (PSCs) are on the verge of mass production, two main challenges remain: stability [7] and toxicity. [8] Multiple reviews already address the toxicity concern, and it will not be discussed here. [9][10][11] Layered hybrid perovskites (LPKs) have emerged as an answer to battle stability concerns. Although known for decades, LPKs have only recently been incorporated in photovoltaic (PV) applications, resulting in modest device power conversion efficiencies due to poorer optoelectronic properties. [12][13][14] However, their key advantage is the stabilizing effects of the organic interlayers, which prevents perovskite degradation. [15,16] The organic spacer inhibits ion migration which prevents the formation of irreversible degradation products. [17] Alternatively, LPKs can be deposited over the state-of-the-art perovskite materials to combine the high performance of 3D perovskites with the stabilizing properties of LPKs. [15] Here, the limiting factor is inefficient charge transport across the organic interlayer, currently preventing the full exploitation of the layered structure in PSCs.This can be approached in two ways, either by keeping the LPK layer very thin, currently the most popular approach, or by increasing the electrical conductivity of the material. [18,19] The conductivity can be enhanced through increasing the number of inorganic layers n, but this comes at the price of reduced stability. [20][21][22] The better approach is to enhance the charge transport in LPKs through the molecular engineering of the organic Layered hybrid perovskites (LPKs) have emerged as a viable solution to address perovskite stability concerns and enable their implementation in wide-scale energy harvesting. Yet, although more stable, the performance of devices incorporating LPKs still lags behind that of state-of-the-art, multication perovskite materials. This is typically assigned to their poor charge transport, currently caused by the choice of cations used within the organic layer. On balance, a compromise bet...

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“…Although the A‐site cation does not participate in covalent bonding, it affects the electronic structure indirectly via changing the volume of the ASnX 3 lattice, leading to octahedral tilting and distortion in perovskite structure. [ 35 ] Relatively strong hydrogen bonds of N−H···X in perovskite [ 6 ] reduce Sn−X bond level or the hybridization states between the Sn 2+ and X − in ASnX 3 . Both the conduction band minimum (CBM) and the valence band maximum (VBM) are downshifted while VBM is more sensitive to hybridization, hence E g will increase.…”

Section: Theoretical Fundamentals Of Tin‐based Perovskitesmentioning

confidence: 99%

“…Hydrazinium (N 2 H 5 + , HA + ) cannot independently form perovskite structure due to its strong tendency toward forming hydrogen bonds, however, it can be used as an additive inserting the perovskite lattice because of the same ionic radius as MA + (217 pm). [ 6 ] HA + cation is widely known as a reducing agent, blocking Sn 2+ facile oxidation and disproportion. For instance, after 8 hours exposure, HACl‐added FASnI 3 precursor solution still maintained light yellow color while without additive turned into dark red (Figure 16B).…”

Section: Additive Engineering Of Sn‐based Pscsmentioning

confidence: 99%

“…Organic‐inorganic hybrid lead halide perovskite solar cells (PSCs) have stunned the photovoltaic community because of the dramatical increase of efficiency from the initial < 4% to > 25% within a relatively short decade, [ 1,2 ] which mainly attributing to their intrinsic photophysical properties and various interaction engineering. [ 3 − 6 ] However, the toxicity of lead in perovskite could lead to environment issues, which is considered to be a major challenge for commercial application. Therefore, it is essential to develop environmentally friendly lead‐free perovskite alternatives.…”

Section: Introductionmentioning

confidence: 99%

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Recent progress toward highly efficient tin‐based perovskite (ASnX3) solar cells

2021

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Recently, lead halide perovskites have attracted great attention in photovoltaic field because of high power conversion efficiency. However, the toxicity of lead in perovskite can result in environment issues, which are the major challenge for commercial application. In this context, environmentally friendly lead‐free perovskite alternatives are highly desired. Bearing excellent photophysical and electronic properties, tin‐perovskites (ASnX3) are the most promising alternative. In reality, extensive efforts have been committed to the development of Sn‐based perovskite solar cells. In this review, we summarized the theoretical fundamentals of Sn‐based perovskites, including lattice, phases, molecular orbital, redox property, and defects. Then varieties of tactics to improve devices performance were detailed reviewed. Finally, perspectives on further research directions in improving Sn‐based solar cells performance are presented.

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Interaction engineering in organic–inorganic hybrid perovskite solar cells

Abstract: Various intermolecular interactions in perovskite solar cells can help in improving efficiency and stability.

Cited by 40 publications

References 247 publications

Impact of Molybdenum Dichalcogenides on the Active and Hole‐Transport Layers for Perovskite Solar Cells, X‐Ray Detectors, and Photodetectors

Impact of Molybdenum Dichalcogenides on the Active and Hole‐Transport Layers for Perovskite Solar Cells, X‐Ray Detectors, and Photodetectors

Layered Perovskites in Solar Cells: Structure, Optoelectronic Properties, and Device Design

Recent progress toward highly efficient tin‐based perovskite (ASnX3) solar cells

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