Surface dipole affords high-performance carbon-based CsPbI2Br perovskite solar cells

Yan, Zhongliang; Deng, Wei; Jing, Yu; Wang, Xin; Zhang, Huayan; Liu, Xiao; Wang, Shibo; Wang, Chunyan; Sun, Weihai; Wu, Jihuai

doi:10.1016/j.cej.2022.134611

Cited by 38 publications

(21 citation statements)

References 39 publications

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“…7 The metal electrodes are susceptible to ion migration from perovskites, and the hygroscopic and deliquescent additives in organic hole transport layers (HTLs) can also accelerate device degradation. 8,9 Because Spiro-OMeTAD requires oxygen, it is difficult to control its oxidation process. 10 In terms of costs, both organic HTLs and metal electrodes are quite expensive, for example, the costs of poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA), Spiro-OMeTAD, Au and Ag are 19.80 $ per ml, 23.96 $ per ml, 60500 $ per kg and 8500 $ per kg, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Meanwhile, hydrophobic and environmentally friendly carbon materials as the HTLs and back electrodes also simplify the fabrication process, decrease the cost (300 $ per kg), 12 and protect perovskite films from moisture erosion. 8,13…”

Section: Introductionmentioning

confidence: 99%

“…14 Though CsPbBr 3 displays better phase stability, its wide E g (2.3 eV) leads to substantial optical losses, limiting the short-circuit current density ( J sc ) of PSCs. 15 Fortunately, mixed-halide CsPbI 2 Br can achieve a good trade-off between E g and phase stability, 8 but the PCEs of reported C-IPSCs are still far from their Shockley–Queisser (S–Q) limits and counterparts based on organic HTLs and metal electrodes. 16,17 In general, there are two vital factors for the low PCE of C-IPSCs: one is the bulk defects ( e.g.…”

Section: Introductionmentioning

confidence: 99%

“…), bulk heterostructure engineering, 15,27 surface passivation engineering ( e.g. polymers, 28,29 organic small molecules, 30 organic ammonium halide salts, 5,8,31,32 ionic liquids, 33,34 etc. ) and so on.…”

Section: Introductionmentioning

confidence: 99%

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The synergistic effect of defect passivation and energy level adjustment for low-temperature carbon-based CsPbI₂Br perovskite solar cells

Zhang

Guo

et al. 2022

J. Mater. Chem. C

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The synergistic effect of defect passivation and energy level adjustment for low-temperature carbon-based CsPbI₂Br perovskite solar cells

Zhang

Guo

et al. 2022

J. Mater. Chem. C

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“…And, the electronic states of the interface were adjusted by introducing a dipole, in which dipole can passivate the defects of perovskite, increase the work function of perovskite, and improve the extraction and collection of holes. [ 52 ] The perovskite surface was modified with 4‐bromobenzyl hydrobromide (BrBeAI) to improve the device performance. The BrBeAI forms a hydrophobic coating on the surface of CsPbI 2 Br film, and iodide ions were inserted into the lattice.…”

Section: Interface Modifiersmentioning

confidence: 99%

Organic Molecules in All‐Inorganic CsPbI_xBr_3−xPerovskite Solar Cells: Interface Modifiers or Precursor Additives

Chai

Chang

Zhang

et al. 2022

Adv Energy and Sustain Res

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Figure 10. a) Schematic diagram of the controlled and optimized crystallization process. Reproduced with permission. [125] Copyright 2022, Elsevier. b) Schematic process of the increased number of colloids mediated by PEG additive. Reproduced with permission. [128] Copyright 2019, Elsevier. c) The schematic process for the formation of the CsPbBr 3 via the one-step spin-coating process. Reproduced with permission. [129] Copyright 2020, Elsevier. d) The proposed mechanism for the elimination of phase segregation in CsPbI 2 Br film by PMMA. Reproduced with permission. [131] Copyright 2021, Chinese Institute of Electronics. e) The schematic illustration of the formation process for PEG: CsPbIBr 2 . Reproduced with permission. [130] Copyright 2020, Wiley-VCH. Figure 9. Schematic diagram of perovskite precursor solution with HEMA. Molecular chemical structure of HEMA additive and polymerization reactions during high-temperature annealing. Schematic representation of the presence of HEMA hydrophobic polymers at GBs. Reproduced with permission. [121]

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Stability Challenges in Industrialization of Perovskite Photovoltaics: From Atomic‐Scale View to Module Encapsulation

Chen,

Chu,

Yan

2024

Adv Funct Materials

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Perovskite photovoltaics have attracted significant attention in both academia and industry, benefiting from the superiorities of high efficiency, low cost, and simplified fabrication process. Importantly, long‐term stability is essential for practical industrialization; however, the stability challenge remains a significant impediment. Notably, stability is an essential prerequisite for practical applications. Unfortunately, as the device area increases, even to the module level, the efficiency gradually diminishes, and the stability deteriorates. This review summarizes the advances in perovskite photovoltaic technology stability from comprehensive perspectives, including the atomic‐scale, grain boundary, film morphology, interface, charge transport layer, electrode, laser etching, and module encapsulation. First, the review highlights the ongoing importance of stability in the industrialization of perovskite photovoltaics. Then, the review presents the stability challenge and explores the relationship between efficiency and stability in large‐area photovoltaic modules, shedding light on the stability issue. Later, the review explains the stability issue in terms of structure, chemistry, interfaces, device design, operation, and external environment, and proposes stability strategies ranging from the atomic‐scale to module encapsulation. Finally, the review emphasizes various improvement strategies, particularly multilevel synergistic optimization, offering fundamental guidance for the industrialization of perovskite photovoltaics.

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Surface dipole affords high-performance carbon-based CsPbI2Br perovskite solar cells

Cited by 38 publications

References 39 publications

The synergistic effect of defect passivation and energy level adjustment for low-temperature carbon-based CsPbI₂Br perovskite solar cells

The synergistic effect of defect passivation and energy level adjustment for low-temperature carbon-based CsPbI₂Br perovskite solar cells

Organic Molecules in All‐Inorganic CsPbI_xBr_3−xPerovskite Solar Cells: Interface Modifiers or Precursor Additives

Stability Challenges in Industrialization of Perovskite Photovoltaics: From Atomic‐Scale View to Module Encapsulation

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Surface dipole affords high-performance carbon-based CsPbI2Br perovskite solar cells

Cited by 38 publications

References 39 publications

The synergistic effect of defect passivation and energy level adjustment for low-temperature carbon-based CsPbI2Br perovskite solar cells

The synergistic effect of defect passivation and energy level adjustment for low-temperature carbon-based CsPbI2Br perovskite solar cells

Organic Molecules in All‐Inorganic CsPbIxBr3−xPerovskite Solar Cells: Interface Modifiers or Precursor Additives

Stability Challenges in Industrialization of Perovskite Photovoltaics: From Atomic‐Scale View to Module Encapsulation

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Product

Resources

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The synergistic effect of defect passivation and energy level adjustment for low-temperature carbon-based CsPbI₂Br perovskite solar cells

The synergistic effect of defect passivation and energy level adjustment for low-temperature carbon-based CsPbI₂Br perovskite solar cells

Organic Molecules in All‐Inorganic CsPbI_xBr_3−xPerovskite Solar Cells: Interface Modifiers or Precursor Additives