A bismuth silver pnictohalide alternative to perovskite in fully-printable triple-mesoscopic solar cells

Robertson, Neil

doi:10.1039/d2se01324j

Cited by 4 publications

(1 citation statement)

References 45 publications

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“…Inspired by perovskites, rudorffites are also considered potential candidates for photovoltaic application. 193,199,205,206 Rudorffites have the chemical formula of Ag x Bi y I x+3y and their tunable compositions result in various symmetries, such as R% 3m for the Ag-rich compound and Fd% 3m for the Bi-rich counterpart. 191,207,208 However, despite the suitable direct bandgaps achieved in some compounds, 188,195,201,209 the current PCE of rudorffite solar cells 23,195 still falls short of the expectation (Table 4).…”

Section: Perovskite-like Rudorffitesmentioning

confidence: 99%

Breaking the bottleneck of lead-free perovskite solar cells through dimensionality modulation

Yu,

Zou,

Wang

et al. 2024

Chem. Soc. Rev.

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Section: Perovskite-like Rudorffitesmentioning

confidence: 99%

Breaking the bottleneck of lead-free perovskite solar cells through dimensionality modulation

Yu,

Zou,

Wang

et al. 2024

Chem. Soc. Rev.

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Wide‐Bandgap Perovskite‐Inspired Materials: Defect‐Driven Challenges for High‐Performance Optoelectronics

Grandhi,

Hardy,

Krishnaiah

et al. 2023

Adv Funct Materials

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The remarkable success of lead halide perovskites (LHPs) in photovoltaics and other optoelectronics is significantly linked to their defect tolerance, although this correlation remains not fully clear. The tendency of LHPs to decompose into toxic lead‐containing compounds in the presence of humid air calls for the need of low‐toxicity LHP alternatives comprising of cations with stable oxidation states. To this aim, a plethora of low‐dimensional and wide‐bandgap perovskite‐inspired materials (PIMs) are proposed. Unfortunately, the optoelectronic performance of PIMs currently lags behind that of their LHP‐based counterparts, with a key limiting factor being the high concentration of defects in PIMs, whose rich and complex chemistry is still inadequately understood. This review discusses the defect chemistry of relevant PIMs belonging to the halide elpasolite, vacancy‐ordered double perovskite, pnictogen‐based metal halide, Ag‐Bi‐I, and metal chalcohalide families of materials. The defect‐driven optical and charge‐carrier transport properties of PIMs and their device performance within and beyond photovoltaics are especially discussed. Finally, a view on potential solutions for advancing the research on wide‐bandgap PIMs is provided. The key insights of this review will help to tackle the commercialization challenges of these emerging semiconductors with low toxicity and intrinsic air stability.

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Enhancing Charge Transfer in Perovskite‐Inspired Silver Iodobismuthate‐Based Solar Cells via Cesium Iodide Interlayer

Al‐Anesi,

Sugathan,

Karlsson

et al. 2024

Adv Energy and Sustain Res

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Ag3BiI6 (ABI) is one of the most widely explored lead‐free perovskite‐inspired materials for eco‐friendly solar cell applications. However, despite the intense research efforts, the photovoltaic performance of ABI‐based devices remains very modest, primarily due to poor film morphology and ineffective charge extraction. This work aims at investigating the potential benefits of a thermally evaporated cesium iodide (CsI) interlayer on the performance of ABI‐based solar cells. Upon the addition of CsI atop the ABI layer in the device stack, the solar cells deliver a power conversion efficiency (PCE) of 2.27%. This is the highest efficiency reported for ABI solar cells employing a similar device architecture. It is found that the enhancement in PCE is largely due to improvement in the ABI|hole transport layer interface upon the introduction of CsI interlayer. The improvement is largely ascribed to enhanced surface coverage upon introduction of CsI interlayer, as evidenced by our comprehensive microscopy studies. Furthermore, impedance spectroscopy analysis is employed to provide further insights into the changes in charge transfer dynamics interlayer that dictate the enhancement of fill factor and short‐circuit current density in the devices. The findings indicate that the addition of CsI promotes charge transfer and minimizes recombination losses.

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A bismuth silver pnictohalide alternative to perovskite in fully-printable triple-mesoscopic solar cells

Abstract: Recent Ag3BiI6 solar cells have demonstrated promising efficiency, however, most have focused on mesoporous n-i-p configuration, using expensive hole transport materials (e.g. P3HT, PTAA and Spiro-OMeTAD) and Au counter electrode....

Cited by 4 publications

References 45 publications

Breaking the bottleneck of lead-free perovskite solar cells through dimensionality modulation

Breaking the bottleneck of lead-free perovskite solar cells through dimensionality modulation

Wide‐Bandgap Perovskite‐Inspired Materials: Defect‐Driven Challenges for High‐Performance Optoelectronics

Enhancing Charge Transfer in Perovskite‐Inspired Silver Iodobismuthate‐Based Solar Cells via Cesium Iodide Interlayer

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