Extraordinary Strong Band‐Edge Absorption in Distorted Chalcogenide Perovskites

Nishigaki, Youichi; Nagai, Takayuki; Nishiwaki, Mitsutoshi; Aizawa, Takuma; Kozawa, Masayuki; Hanzawa, Kota; Kato, Yoshitsune; Sai, Hitoshi; Hiramatsu, Hidenori; Hosono, Hideo; Fujiwara, Hiroyuki

doi:10.1002/solr.202070051

Cited by 18 publications

(25 citation statements)

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“…[20] On a similar note, a comparison of four chalcogenide perovskites e. g. BaZrS 3 , SrZrS 3 , BaHfS 3 , SrHfS 3 with thin film absorber MAPbI 3 , GaAs and CuInSe 2 by Nishigaki et al establishes that the absorption coefficient of chalcogenide perovskites surpasses the value of the matured absorbers [Figure 8b]. [50] Zitouni et al, observed that on increasing the wavelength, absorption coefficient of BaZrS 3 sharply decreases. The maximum absorption coefficient obtained was 59.3×10 4 cm À 1 at 276 nm for bulk BaZrS 3 .…”

Section: Absorption Coefficientmentioning

confidence: 86%

“…establishes that the absorption coefficient of chalcogenide perovskites surpasses the value of the matured absorbers [Figure 8b]. [50] …”

Section: Special Properties Of Chalcogenide Perovskitesmentioning

confidence: 99%

“…It is to be noted that the experimental conditions play a major role in controlling the phase and formability of the chalcogenide perovskite material. The alloyed composition BaZr 1‐x Ti x S 3 is obtained only through sulfurization of oxide perovskite with CS 2, [33,50] solid state reaction of the sulfide precursor in a direct approach was unsuccessful [50] . Synthesis of SrZrS 3 by sulfurization method with CS 2 produces a non‐perovskite structure [17] while synthesis using solid state reaction resulted in a distorted perovskite structure [50] .…”

Section: Experimental Studies Of Chalcogenide Perovskitesmentioning

confidence: 99%

“…Many research results showed band edges of these materials consisting of 3p valance state of sulfur and d conduction states of transition metal. [20,50] Due to the high joint density of these states, the absorption coefficients lifted to 10 5 cm À 1 quickly. For instance, several investigations have noted absorption coefficients for specific chalcogenide perovskites in the near-infrared region that fall between 10 4 and 10 5 cm À 1 .…”

Section: Absorption Coefficientmentioning

confidence: 99%

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Chalcogenide Perovskite, An Emerging Photovoltaic Material: Current Status and Future Perspectives

Raj,

Singh,

Guin

2023

ChemistrySelect

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Chalcogenide perovskite materials came into the picture of photovoltaic technology since 2015. Their admirable structural, electronic and optical properties make them highly promising for solar energy conversion. They have immense potential to solve the stability and toxicity issues of conventional perovskite solar cells. The maximum theoretical power conversion efficiency reported for them is about 30 % which is similar to CH3NH3PbI3 perovskite material. However their application in photovoltaics is limited by several challenges. In this review, we tried to provide an overview of the structural features of the chalcogenide perovskite materials and critically highlighted computational and synthetic accomplishments in this area. Various techniques developed for synthesizing these materials so far, have also been summarized. Along with that, the challenges associated in designing these materials for improved optoelectronic properties are also addressed. Serious research efforts are urgently needed for the realization of the dream of chalcogenide perovskite material based solar cells in terms of optimization of optoelectronic properties, synthetic cost, processing of thin films and application in tandem solar cell devices. This review may facilitate further progress in chalcogenide perovskite material based thin film solar cell in the future.

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Section: Absorption Coefficientmentioning

confidence: 86%

“…establishes that the absorption coefficient of chalcogenide perovskites surpasses the value of the matured absorbers [Figure 8b]. [50] …”

Section: Special Properties Of Chalcogenide Perovskitesmentioning

confidence: 99%

Section: Experimental Studies Of Chalcogenide Perovskitesmentioning

confidence: 99%

Section: Absorption Coefficientmentioning

confidence: 99%

See 2 more Smart Citations

Chalcogenide Perovskite, An Emerging Photovoltaic Material: Current Status and Future Perspectives

Raj,

Singh,

Guin

2023

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…As a result, besides the implementation of high-efficiency devices, it is also essential to consider on environment and safety issues for an optimum PSC device. Recently, Nishigaki et al (2020) show simulations study based on light absorption characteristics of chalcogenide alloy-based perovskites such as Ba(Zr,Ti)S 3 , indicating a maximum potential of 38.7% PCE in a perovskite/crystalline Si tandem structure [58]. Despite intrinsically excellent optoelectronic properties of the perovskite absorber, a gap between the theoretical efficiency and the experimental one opens up an ample scope of further investigation and detailed scrutiny to unveil the hidden information of achieving high efficiency and stable PSC.…”

Section: Device Challenges: Stability and Toxicity Affairs Of Pscsmentioning

confidence: 99%

Perovskite Solar Cells for BIPV Application: A Review

et al. 2020

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The rapid efficiency enhancement of perovskite solar cells (PSCs) make it a promising photovoltaic (PV) research, which has now drawn attention from industries and government organizations to invest for further development of PSC technology. PSC technology continuously develops into new and improved results. However, stability, toxicity, cost, material production and fabrication become the significant factors, which limits the expansion of PSCs. PSCs integration into a building in the form of building-integrated photovoltaic (BIPV) is one of the most holistic approaches to exploit it as a next-generation PV technology. Integration of high efficiency and semi-transparent PSC in BIPV is still not a well-established area. The purpose of this review is to get an overview of the relative scope of PSCs integration in the BIPV sector. This review demonstrates the benevolence of PSCs by stimulating energy conversion and its perspective and gradual evolution in terms of photovoltaic applications to address the challenge of increasing energy demand and their environmental impacts for BIPV adaptation. Understanding the critical impact regarding the materials and devices established portfolio for PSC integration BIPV are also discussed. In addition to highlighting the apparent advantages of using PSCs in terms of their demand, perspective and the limitations, challenges, new strategies of modification and relative scopes are also addressed in this review.

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Chalcogenide Perovskite Thin Films with Controlled Phases for Optoelectronics

Yu,

Hui,

West

et al. 2023

Adv Funct Materials

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Chalcogenide perovskites have emerged as promising semiconductor materials due to their appealing properties, including tunable bandgaps, high absorption coefficients, reasonable carrier lifetimes and mobilities, excellent chemical stability, and environmentally benign nature. However, beyond the well‐studied BaZrS3, reports on chalcogenide perovskite thin films with diverse compositions are scarce. In this study, the realization of four different types of chalcogenide perovskite thin films with controlled phases, through CS2 annealing of amorphous chalcogenide precursor films deposited by pulsed laser deposition (PLD), is reported. This achievement is guided by a thorough theoretical investigation of the phase stability of chalcogenide perovskites. Upon crystallization in the distorted perovskite phase, all materials exhibit photoluminescence (PL) with peak positions in the visible range, consistent with their expected bandgap values. However, the full‐width‐at‐half‐maximum (FWHM) of the PL spectra varies significantly across these materials, ranging from 99 meV for SrHfS3 to 231 meV for BaHfS3. The difference is attributed to the difference in kinetic barriers between local structural motifs for the Sr and Ba compounds. The findings underscore the promise of chalcogenide perovskite thin films as an alternative to traditional halide perovskites for optoelectronic applications, while highlighting the challenges in optimizing their synthesis and performance.

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Extraordinary Strong Band‐Edge Absorption in Distorted Chalcogenide Perovskites

Cited by 18 publications

References 0 publications

Chalcogenide Perovskite, An Emerging Photovoltaic Material: Current Status and Future Perspectives

Chalcogenide Perovskite, An Emerging Photovoltaic Material: Current Status and Future Perspectives

Perovskite Solar Cells for BIPV Application: A Review

Chalcogenide Perovskite Thin Films with Controlled Phases for Optoelectronics

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