Nickel phthalocyanine as an excellent hole-transport material in inverted planar perovskite solar cells

Haider, Mustafa; Zhen, Chao; Wu, Tingting; Wu, Jinbo; Jia, Chunxu; Liu, Gang; Cheng, Hui‐Ming

doi:10.1039/c9cc01266d

Cited by 33 publications

(26 citation statements)

References 19 publications

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“…Song and co-workers used thermal evaporation to introduce pristine ZnPc as an intermediate layer between the perovskite MAPbI 3 and spiro-OMeTAD. 284,285 The involvement of the ZnPc modification layer enhanced both the solar cell performance and ambient stability of PSCs. The authors further boosted the PCE of planar devices based on this ZnPc/ spiro-OMeTAD bi-HTL to 17.8% by incorporating a photon downshifting layer SrAl 2 O 4 : Eu 2+ , Dy 3+ , which improved the light-harvesting and suppressed charge recombination.…”

Section: Phthalocyanine Metal Complexes As Htl In Pscsmentioning

confidence: 99%

Recent advances of organometallic complexes in emerging photovoltaics

Gao

et al. 2021

Journal of Polymer Science

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Organometallic complexes (OMCs) consisting of organic and metal active moieties have shown immense potential for application in solar cells. The diverse structure, rich porosity, and unique charge centers of OMCs enable them to be functional in solar cells. In this review, we introduced four types of OMCs, such as crown organometallic complexes, β-diketone metal complexes, cyclometallic complexes, and main chain metal-containing polymers, providing an in-depth analysis of the structure-performance relationship. OMCs could serve as active or interlayer materials in a variety of solar cell systems such as organic solar cells, perovskite solar cells, and dye-sensitized solar cells, especially some metals to improve the photoelectric performance of the device as dopants. In the end, perspectives on the opportunities and challenges of OMCs are given.

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Section: Phthalocyanine Metal Complexes As Htl In Pscsmentioning

confidence: 99%

Recent advances of organometallic complexes in emerging photovoltaics

Gao

et al. 2021

Journal of Polymer Science

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“…The isomer ratio of Ni(t-Bu)4Pc with C2ν was found to be an important factor to improve external quantum efficiency [94]. In addition, recent reports showed that the use of pristine vacuum thermally deposited NiPc as hole-transport-layer in perovskite-solar cells improves the performance of the cells when compared with other metal phthalocyanines such as CuPc: values of 14.3%, 19.45 mA cm−2, 1.0 V and 73.6% were obtained in the devices for maximum power conversion efficiency, short-circuit current density, open circuit voltage and fill-factor, respectively [95,96].…”

Section: Phthalocyaninesmentioning

confidence: 99%

Evolutionary Computation for Parameter Extraction of Organic Thin-Film Transistors Using Newly Synthesized Liquid Crystalline Nickel Phthalocyanine

et al. 2019

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In this work, the topic of the detrimental contact effects in organic thin-film transistors (OTFTs) is revisited. In this case, contact effects are considered as a tool to enhance the characterization procedures of OTFTs, achieving more accurate values for the fundamental parameters of the transistor threshold voltage, carrier mobility and on-off current ratio. The contact region is also seen as a fundamental part of the device which is sensitive to physical, chemical and fabrication variables. A compact model for OTFTs, which includes the effects of the contacts, and a recent proposal of an associated evolutionary parameter extraction procedure are reviewed. Both the model and the procedure are used to assess the effect of the annealing temperature on a nickel-1,4,8,11,15,18,22,25-octakis(hexyl)phthalocyanine (NiPc6)-based OTFT. A review of the importance of phthalocyanines in organic electronics is also provided. The characterization of the contact region in NiPc6 OTFTs complements the results extracted from other physical–chemical techniques such as differential scanning calorimetry or atomic force microscopy, in which the transition from crystal to columnar mesophase imposes a limit for the optimum performance of the annealed OTFTs.

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“…[ 20–22 ] In particular, metal phthalocyanines and their derivatives have received considerable attention for increasing the efficiency and stability of optoelectronic devices, owing to their high hole mobility, excellent thermal and chemical stabilities, and low cost. [ 20,23–25 ] Despite their advantages, unsubstituted phthalocyanines exhibit low solubility; thus, their film formation methods are limited to processes such as thermal evaporation, [ 26–29 ] or they require additional synthesis for solution processing. [ 30–33 ]…”

Section: Introductionmentioning

confidence: 99%

Interface Engineering of Perovskite/Hole Transport Layer Using Nano‐Network Formation in Small Molecule–Polymer Blend for Efficient Inverted Perovskite Solar Cells

Lee

Hong

Lee

et al. 2021

Adv Materials Inter

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Inserting the interfacial layer adjusts the energy levels between the electrode and the semiconductor, reduces the recombination of charges at the interfaces, and facilitates charge carrier transport. [14-18] Organic conjugated semiconducting materials have been considered promising interfacial materials owing to their ability to control optoelectronic properties through molecular engineering, the possibility of their application in flexible devices, and low-temperature processes generally below 150 °C. [16,19] Small-molecule semiconducting materials have been studied as one of the interface materials based on their advantages of having a well-defined molecular structure and molecular weight, simple purification, and reproducibility between batches compared with organic polymers. [20-22] In particular, metal phthalocyanines and their derivatives have received considerable attention for increasing the efficiency and stability of optoelectronic devices, owing to their high hole mobility, excellent thermal and chemical stabilities, and low cost. [20,23-25] Despite their advantages, unsubstituted phthalocyanines exhibit low solubility; thus, their film formation methods are limited to processes such as thermal evaporation, [26-29] or they require additional synthesis for solution processing. [30-33] Metal-phthalocyanine tetrasulfonic acids (TS-MPc; M = Cu, Ni etc.) are introduced with sulfonate ion groups that induce their high water solubility for solution processing. However, most soluble small molecules, such as TS-MPc, exhibit poor film formation due to their strong molecular interactions in solution. [34] To overcome the problem of poor film formation, one useful technology is the blending of small molecules with other conjugated polymers, which can improve both film uniformity and charge transfer properties through advanced molecular packing. [35-39] Recently, some research groups reported hole transporting layer (HTL) of PSCs with increased the efficiency and stability of the devices by doping TS-MPc into poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS). The main material in the HTL in their devices was PEDOT:PSS using TS-MPc as a good dopant. [38,39] Herein, we are the first to report the nano-mesh structure formation in a TS

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Nickel phthalocyanine as an excellent hole-transport material in inverted planar perovskite solar cells

Abstract: Nickel phthalocyanine as a hole transporting material in inverted planar perovskite solar cells leads to a power conversion efficiency of 14.3%.

Cited by 33 publications

References 19 publications

Recent advances of organometallic complexes in emerging photovoltaics

Recent advances of organometallic complexes in emerging photovoltaics

Evolutionary Computation for Parameter Extraction of Organic Thin-Film Transistors Using Newly Synthesized Liquid Crystalline Nickel Phthalocyanine

Interface Engineering of Perovskite/Hole Transport Layer Using Nano‐Network Formation in Small Molecule–Polymer Blend for Efficient Inverted Perovskite Solar Cells

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