Optical and transport properties of new double perovskite oxide

Pattanayak, D.; Parida, R.K.; Panda, Alaka

doi:10.1007/s10854-018-8597-z

Cited by 27 publications

(9 citation statements)

References 43 publications

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“…In both phases, It is noticed that Z 0 decreases when frequency and temperature go up, which shows the negative temperature coefficient of the resistance (NTCR)-type behavior within the compound. 39,40 This type of behavior propounds that an increase in AC conductivity is possible owing to the rise in the mobility of charge carriers and also to the reduction in the trapped charge density in CsSnCl 3 . Z 0 is temperatureindependent in the high-frequency region, which points to the existence of space charge in the material.…”

Section: Impedance Spectroscopy Resultsmentioning

confidence: 99%

Study of charge transfer mechanism and dielectric relaxation of all-inorganic perovskite CsSnCl₃

Bechir

Dhaou

2021

RSC Adv.

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Section: Impedance Spectroscopy Resultsmentioning

confidence: 99%

Study of charge transfer mechanism and dielectric relaxation of all-inorganic perovskite CsSnCl₃

Bechir

Dhaou

2021

RSC Adv.

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“…Addressing the toxicity issues in these compounds by a careful and strategic replacement of Pb 2+ with other nontoxic candidate elements represents a promising direction to fabricate lead-free optoelectronic devices. [63][64][65][66][67][68][69][70][71] Their amazing properties, including paramagnetism, [69,70] ferromagnetism, [71] and magnetoresistance, [68] have exhibited successful application in the preparation of various metallic materials. Here, the authors present the current progress and setbacks in crystal structures, materials preparation, optoelectronic properties, stability, and photovoltaic applications of lead-free halide double perovskite compounds.…”

Section: Introductionmentioning

confidence: 99%

“…The A 2 B′B″X 6 crystal structure provides an avenue for easier substitution and incorporation of different metal cations with different oxidation states in the B‐site, various organic and inorganic species in the A‐site, and a variation of halide composition in the X‐site . Oxide based double perovskites with a formula, A 2 B′B″O 6 , have been well studied . Their amazing properties, including paramagnetism, ferromagnetism, and magnetoresistance, have exhibited successful application in the preparation of various metallic materials.…”

Section: Introductionmentioning

confidence: 99%

Progress of Lead‐Free Halide Double Perovskites

Igbari

Wang

Liao

2019

Advanced Energy Materials

392

305

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Although impressive performance has been obtained, PSCs are still far from commercial or real-life availability due to serious issues such as toxicity [15,16] and poor stability to heat, [17] oxygen, [18] moisture, [19,20] electric field, [21] and light. [18,22] The toxic nature of hybrid organic-inorganic lead halide perovskites has been traced to the presence of Pb in its chemical composition. [15,16,[23][24][25] Pb 2+ readily dissolves in water (e.g., rain water) to form a toxic solution capable of causing serious environmental pollution, harmful to human beings and the ecosystem. Besides their sensitivity to moisture, oxygen, light, electric field, or thermal stress, an existing self-degradation pathway [26,27] is also a big issue in hybrid organic-inorganic lead halide perovskites. Mixed-halide and mixed-cation perovskites have been investigated to address these issues. [28][29][30][31][32] The group IV elements, tin (Sn) [23,[33][34][35] and germanium (Ge), [34,36] have been employed as the replacements for Pb. However, the device performance through this approach has fallen short of the Pb-based ones. For example, the PCEs reported for Sn-based perovskite solar cells are usually less than 10%. [23,[33][34][35][37][38][39][40] In addition, the easy oxidation of Sn and Ge from the +2 state to the +4 state due to their high energy 5s and 4s orbitals makes them less promising for application in stable and long-term PSCs. [41] High throughput calculations also demonstrate that these substitutions are likely to compromise the ideal optoelectronic properties of MAPbI 3 . [42,43] Furthermore, low dimensional (e.g., 2D, 1D, and 0D) perovskites have also been used to address the stability issues in PSCs. [44][45][46][47][48] Recently, a stabilized PCE of 21.7% resulting from a 2D/3D bilayer PSC was reported. [49] However, the highest certified PCE in a 2D-only planar PSC is 15.3%, [50] which is far below that of their 3D perovskite-based counterparts. It thus stimulates the interest to develop new classes of materials which can solve the issues of toxicity and stability while still maintaining the fascinating properties of lead-based perovskite materials.Recent theoretical calculations demonstrate that a halide double perovskite structure, A 2 B′B″X 6 , which could be formed through a replacement of two toxic Pb 2+ in the crystal lattice with a pair of nontoxic heterovalent (i.e., monovalent and trivalent) metal cations, is a promising alternative to realize high-performance, lead-free, and stable PSCs. [51,52] Although, spectroscopic limited maximum efficiency (SLME) calculations revealed an efficiency limit less than 8% for the most prominent member www.advancedsciencenews.com double perovskites with a vacancy ordered structure. [88] In particular, the unit cell axis of Cs 2 AgBiBr 6 is given to be ≈11.25 Å, [25] which is two times larger than that of MAPbBr 3 (≈5.92 Å). [89] Both Ag + and Bi 3+ occupy the B-site of the crystal lattice with slightly varied metal-halide bond lengths. The dissimilar bond lengths st...

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“…[30][31][32][33][34][35] In contrast, one tetravalent metal cation and vacancy site can be substituted to retain charge neutrality and from A 2 M (IV) 4þ X 6 , as shown in Figure 1d,e. [36][37][38][39][40][41][42][43][44][45] The double perovskite materials made up of tetravalent ions are the analogue of A 2 M(I) þ M(III) 3þ X 6 and can be derived as vacancy-ordered halide double perovskite. Since the development of double perovskite materials, oxides-based double perovskites are mainly included in optoelectronic applications due to their remarkable properties of magnetoresistance, paramagnetism, and ferromagnetism.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Cesium‐Based Lead‐Free Halide Double Perovskite Materials for Photovoltaic Applications

Raj

Kumar

Anshul

2022

Physica Status Solidi (a)

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Perovskite materials have revolutionized photovoltaic technology and become the vanguard of current research owing to their facile solution processability and exceptional enhancement in power conversion efficiency (PCE), reaching 25.2% to date. Unfortunately, lead toxicity is the major hurdle for perovskite solar cells (PSCs) for their scalability and prevalent commercialization. To tackle the toxicity issue, lead-free perovskite and double perovskite materials are potential contenders in the photovoltaic world. Herein, a comprehensive study of lead-free halide double perovskite materials with the formula A 2 BB'X 6 is provided. Notably, the structure and design of the lead-free light-harvesting layer of Cs 2 BB'X 6 is emphasized. Moreover, different organic-inorganic lead-free halide double perovskite layers-based solar devices are explored with their designed configurations and physical parameters. Finally, recent significant advancement in leadfree double PSCs are reviewed, and the future outlook associated with lead-free double perovskite devices is also deliberated to attain a promising pathway toward highly efficient and stable perovskite solar devices.

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Optical and transport properties of new double perovskite oxide

Cited by 27 publications

References 43 publications

Study of charge transfer mechanism and dielectric relaxation of all-inorganic perovskite CsSnCl₃

Study of charge transfer mechanism and dielectric relaxation of all-inorganic perovskite CsSnCl₃

Progress of Lead‐Free Halide Double Perovskites

Recent Progress in Cesium‐Based Lead‐Free Halide Double Perovskite Materials for Photovoltaic Applications

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Optical and transport properties of new double perovskite oxide

Cited by 27 publications

References 43 publications

Study of charge transfer mechanism and dielectric relaxation of all-inorganic perovskite CsSnCl3

Study of charge transfer mechanism and dielectric relaxation of all-inorganic perovskite CsSnCl3

Progress of Lead‐Free Halide Double Perovskites

Recent Progress in Cesium‐Based Lead‐Free Halide Double Perovskite Materials for Photovoltaic Applications

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Study of charge transfer mechanism and dielectric relaxation of all-inorganic perovskite CsSnCl₃

Study of charge transfer mechanism and dielectric relaxation of all-inorganic perovskite CsSnCl₃