21.7% efficiency achieved in planar n–i–p perovskite solar cells <i>via</i> interface engineering with water-soluble 2D TiS<sub>2</sub>

Huang, Peng; Chen, Qiaoyun; Zhang, Kaicheng; Yuan, Ligang; Zhou, Yi; Song, Bo; Li, Yongfang

doi:10.1039/c8ta11841h

Cited by 98 publications

(96 citation statements)

References 55 publications

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“…To explain the improvement in V OC , space charge limited current (SCLC) (Figure S4, Supporting Information) was carried out to calculate the trap densities ( N t ) of devices. The N t is calculated using the following equation:

N_{normalt} = \frac{2 ε ε_{0} V_{TFL}}{e L^{2}}

where ε (=35) is the relative dielectric constant, ε 0 (= 8.854 × 10 −12 F m −1 ) is the vacuum permittivity, V TFL is the trap‐filled voltage, e is the elementary charge (1.6 × 10 −19 C), and L (average size = 320 nm estimated from cross‐sectional SEM images) is the thickness of the perovskite film. According to Figure S4, Supporting Information, the V TFL s of devices based on PTAA and PSBMA@PTAA are 0.5 and 0.2 V, respectively.…”

Section: Resultsmentioning

confidence: 99%

Zwitterionic Polymer: A Facile Interfacial Material Works at Both Anode and Cathode in p‐i‐n Perovskite Solar Cells

et al. 2019

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To improve the performance of perovskite solar cells (Pero‐SCs), a betaine‐based zwitterionic polymer poly(sulfobetaine methacrylate) (denoted by PSBMA) is employed as interlayers at both the anode and cathode in p‐i‐n Pero‐SCs. 1) At the anode side, PSBMA acts as a glue to stitch the two interfacially unfavorable materials: perovskite and poly(bis(4‐phenyl)(2,4,6‐trimethylphenyl)amine), by which the quality of perovskite films as well as the corresponding device performance greatly improve. 2) At the cathode side, PSBMA smoothes the energy levels between PC61BM and Al, and thus facilitates the electron injection efficiency. The power conversion efficiency (PCE) is promoted from 17.31% to 19.16% after PSBMA is introduced as both anode and cathode sides of the p‐i‐n Pero‐SCs. More importantly, PSBMA also shows great potential for large active area (1 cm × 1 cm) Pero‐SCs, and a PCE as high as 15.7% is achieved.

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N_{normalt} = \frac{2 ε ε_{0} V_{TFL}}{e L^{2}}

Section: Resultsmentioning

confidence: 99%

Zwitterionic Polymer: A Facile Interfacial Material Works at Both Anode and Cathode in p‐i‐n Perovskite Solar Cells

et al. 2019

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“…Device schematic with HTM is shown in Figure S1b. 7,8 The cross-sectional SEM image of devices with 2,6PyDANCBZ and 3,5PyDANCBZ (Figure 5a and 5b) showed Rs and Rsh of 41.0 Ω and 12.2 kΩ, respectively. Subsequently, 2,6PyDANCBZ yielded improved PCE with high FF, which is due to the lower Rs and higher Rsh.…”

Section: Device Performancementioning

confidence: 99%

“…6 The HTMs play pivotal roles in facilitating holes extraction and transportation, and help to retard the degradation of PSCs induced by H2O and oxygen. [7][8][9][10] Currently, 2,2´,7,7´-tetrakis-(N,N-di-p-methoxyphenylamine)-9,9´-spirobifluorene (Spiro-OMeTAD) is the most investigated HTM for PSCs fabrication due to its optimized recipe, ease of implementation to fabricate high performance devices. Kim and Seok et.al…”

Section: Introductionmentioning

confidence: 99%

Pyridine Bridging Diphenylamine-Carbazole with Linking Topology as Rational Hole Transporter for Perovskite Solar Cells Fabrication

Huang

Manju

Kazim

et al. 2020

ACS Appl. Mater. Interfaces

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Developing cost-effective and rational hole transporting materials is critical for fabricating high-performance perovskite solar cells (PSCs) and to promote their commercial endeavor. We have designed and developed pyridine (core) bridging diphenylamine-substituted carbazole (arm) small molecules, named as 2,6PyDANCBZ and 3,5PyDANCBZ. The linking topology of core and arm on their photophysical, thermal, semiconducting and photovoltaic properties were probed systematically. We found that the 2,6PyDANCBZ shows higher mobility and conductivity along with uniform film-forming ability as compared to 3,5PyDANCBZ. The PSCs fabricated with 2,6PyDANCBZ supersede the performance delivered by Spiro-OMeTAD, and importantly also gave improved long-term stability. Our findings put forward small molecules based on core-arm linking topology for cost-effective hole selective layers designing.

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Section: Emerging 2d Materials In Pscsmentioning

confidence: 99%

Emerging 2D Layered Materials for Perovskite Solar Cells

Bati

Batmunkh

Shapter

2019

Advanced Energy Materials

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Perovskite solar cells (PSCs) are now at the forefront of the state‐of‐the‐art photovoltaic technologies due to their high efficiency and low fabrication costs. To further realize the potential of this fascinating class of solar cells, nanostructured functional materials have been playing important roles. 2D layered materials have attracted a great deal of interest due to their fascinating properties and unique structure. Recently, the exploration of a wide range of novel 2D materials for use in PSCs has seen considerable progress, but still a lot remains to be done in this field. In this progress report, the advancements that have recently been made in the application of these emerging 2D materials, beyond graphene, for PSCs are presented. Both the advantages and challenges of these 2D materials for PSCs are highlighted. Finally, important directions for the future advancements toward efficient, low‐cost, and stable PSCs are outlined.

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21.7% efficiency achieved in planar n–i–p perovskite solar cells via interface engineering with water-soluble 2D TiS₂

Abstract: In planar n–i–p perovskite solar cells (Pero-SCs), interfacial engineering plays a critically important role in charge extraction and transportation, and hence influences the photovoltaic performances.

Cited by 98 publications

References 55 publications

Zwitterionic Polymer: A Facile Interfacial Material Works at Both Anode and Cathode in p‐i‐n Perovskite Solar Cells

Zwitterionic Polymer: A Facile Interfacial Material Works at Both Anode and Cathode in p‐i‐n Perovskite Solar Cells

Pyridine Bridging Diphenylamine-Carbazole with Linking Topology as Rational Hole Transporter for Perovskite Solar Cells Fabrication

Emerging 2D Layered Materials for Perovskite Solar Cells

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21.7% efficiency achieved in planar n–i–p perovskite solar cells via interface engineering with water-soluble 2D TiS2

Abstract: In planar n–i–p perovskite solar cells (Pero-SCs), interfacial engineering plays a critically important role in charge extraction and transportation, and hence influences the photovoltaic performances.

Cited by 98 publications

References 55 publications

Zwitterionic Polymer: A Facile Interfacial Material Works at Both Anode and Cathode in p‐i‐n Perovskite Solar Cells

Zwitterionic Polymer: A Facile Interfacial Material Works at Both Anode and Cathode in p‐i‐n Perovskite Solar Cells

Pyridine Bridging Diphenylamine-Carbazole with Linking Topology as Rational Hole Transporter for Perovskite Solar Cells Fabrication

Emerging 2D Layered Materials for Perovskite Solar Cells

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21.7% efficiency achieved in planar n–i–p perovskite solar cells via interface engineering with water-soluble 2D TiS₂