Soluble butyl substituted copper phthalocyanine as alternative hole-transporting material for solution processed perovskite solar cells

Sfyri, Georgia; Chen, Qian; Lin, Yan; Wang, Yulong; Nouri, Esmaiel; Xu, Zong‐Xiang; Lianos, Panagiotis

doi:10.1016/j.electacta.2016.07.047

Cited by 40 publications

(19 citation statements)

References 17 publications

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“…While, the efficiency of 12.72% with a V OC of 1.064 V has been achieved for PSCs based on CuPcNO 2 ‐OPh HTM. Sfyri et al have introduced butyl substitutes to CuPc and synthesized soluble substituted CuPc HTMs, n‐ CuBuPc ( 113 ) and tert ‐CuBuPc ( 114 ) to exploit in PSCs . Solution processed perovskite devices based on n‐CuBuPc to efficiencies of 8.5 and 5.6%, respectively.…”

Section: Dopant‐free Hole Transporting Materials For Pscsmentioning

confidence: 99%

Dopant‐Free Hole Transporting Materials for Perovskite Solar Cells

Rezaee

Liu

et al. 2018

Solar RRL

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This article reviews various dopant-free hole transporting materials (HTMs) used in perovskite solar cells (PSCs) in three main categories including inorganic, polymeric, and small molecule HTMs. PSCs have undergone rapid progress, achieving power conversion efficiencies (PCEs) above 22%. With their low production cost and high efficiencies, PSCs are considered promising next-generation solar cell technology. In all developed architectures for PSCs, including planar and mesoscopic with conventional and inverted structures, HTMs play a significant role in determining the photovoltaic performance of PSCs. Using p-type dopants, however, is considered a common strategy to increase the hole conductivity of HTM, which is usually compensated by a more complicated fabrication procedure, higher production costs, and lower stability of PSC. Although several reviews on HTMs have been published, progress on dopant free HTMs needs to be reviewed and analyzed. Here, a review covering most of the published reports on dopantfree HTMs is presented, and the device structure and fabrication method, HTM layer deposition techniques, and the efficiency and the stability of PSCs are addressed during discussions in each main category. Finally, an outlook on stability and PCE growth in PSCs based on dopant-free HTMs is presented.

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Section: Dopant‐free Hole Transporting Materials For Pscsmentioning

confidence: 99%

Dopant‐Free Hole Transporting Materials for Perovskite Solar Cells

Rezaee

Liu

et al. 2018

Solar RRL

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“…For these reasons, CuPc has recently attracted considerable attention and has been applied in PSCs, exhibiting ab est efficiency of 16 %t ogetherw ith excellent long-term durability. [21,22] Very recently,m olecularly engineered zinc phthalocyanines (ZnPcs) have been developed as solutionprocessable HTMs in PSCs with an maximum PCE of 17.5 %. CuPc can be modified by introductiono fs ubstituents on the periphery of the macrocycle, which can facilitate the solubility.H owever, the use of solution-processableC uPc as aH TM in PSCs has been rarely reported thus far.…”

Section: Introductionmentioning

confidence: 99%

“…CuPc can be modified by introductiono fs ubstituents on the periphery of the macrocycle, which can facilitate the solubility.H owever, the use of solution-processableC uPc as aH TM in PSCs has been rarely reported thus far. [21,22] Very recently,m olecularly engineered zinc phthalocyanines (ZnPcs) have been developed as solutionprocessable HTMs in PSCs with an maximum PCE of 17.5 %. [23] Triphenylamine (TPA) is aw ell-known electron donora nd has been widely used in small-molecule-based HTMs.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Engineering of Perovskite Solar Cells by Employing a Hydrophobic Copper Phthalocyanine Derivative as Hole‐Transporting Material with Improved Performance and Stability

Jiang

Lai

et al. 2017

ChemSusChem

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In high-performance perovskite solar cells (PSCs), hole-transporting materials (HTMs) play an important role in extracting and transporting the photo-generated holes from the perovskite absorber to the cathode, thus reducing unwanted recombination losses and enhancing the photovoltaic performance. Herein, solution-processable tetra-4-(bis(4-tert-butylphenyl)amino)phenoxy-substituted copper phthalocyanine (CuPc-OTPAtBu) was synthesized and explored as a HTM in PSCs. The optical, electrochemical, and thermal properties were fully characterized for this organic metal complex. The photovoltaic performance of PSCs employing this CuPc derivative as a HTM was further investigated, in combination with a mixed-ion perovskite as a light absorber and a low-cost vacuum-free carbon as cathode. The optimized devices [doped with 6 % (w/w) tetrafluoro-tetracyano-quinodimethane (F4TCNQ)] showed a decent power conversion efficiency of 15.0 %, with an open-circuit voltage of 1.01 V, a short-circuit current density of 21.9 mA cm , and a fill factor of 0.68. Notably, the PSC devices studied also exhibited excellent long-term durability under ambient condition for 720 h, mainly owing to the introduction of the hydrophobic HTM interlayer, which prevents moisture penetration into the perovskite film. The present work emphasizes that solution-processable CuPc holds a great promise as a class of alternative HTMs that can be further explored for efficient and stable PSCs in the future.

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“…With this material device durability has enhanced compared to Cu(II) phthalocyanine without substitution . Later, they replaced methyl with tetra n‐butyl chain in the Cu(II) phthalocyanine (Figure (a)), and with this substitution crystallinity was improved, along with solubility, π‐π stacking interactions and better microstructural properties were observed. By increasing the length of the carbon chain, the electrical property and device performance was enhanced from 5.2 % to 8.5 %; device parameters are listed in Table and .…”

Section: Macrocyclic Metal Complex Derivatives As Hole Transporting Mmentioning

confidence: 99%

Metallated Macrocyclic Derivatives as a Hole – Transporting Materials for Perovskite Solar Cells

Reddy

Devulapally

Islavath

et al. 2019

The Chemical Record

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Spiro-OMeTAD is widely used as thehole-transporting material (HTM) in perovskite solar cells (PSC), which extracts positive charges and protects the perovskite materials from metal electrode, setting a new world-record efficiency of more than 20 %. Spiro-OMeTAD layer engross moisture leading to the degradation of perovskite, and therefore, has poor air stability. It is also expensive therefore limiting scale-up, so macrocyclic metal complex derivatives (MMDs) could be a suitable replacement. Our review covers low-cost, high yield hydrophobic materials with minimal steps required for synthesis of efficient HTMs for planar/mesostructured PSCs. The MMDs based devices demonstrated PCEs around 19 % and showed stability for a longer duration, indicating that MMDs are a promising alternative to spiro-OMeTAD and also easy to scale-up via solution approach. Additionally, this review describes how optical and electrical properties of MMDs change with chemical structure, allowing for the design of novel holemobility materials to achieve negligible hysteresis and act as effective functional barriers against moisture which results in a significant increase in the stability of the device. We provide an overview of the apt green-synthesis, characterization, stability and implementation of the various classes of macrocyclic metal complex derivatives as HTM for photovoltaic applications.

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Soluble butyl substituted copper phthalocyanine as alternative hole-transporting material for solution processed perovskite solar cells

Cited by 40 publications

References 17 publications

Dopant‐Free Hole Transporting Materials for Perovskite Solar Cells

Dopant‐Free Hole Transporting Materials for Perovskite Solar Cells

Interfacial Engineering of Perovskite Solar Cells by Employing a Hydrophobic Copper Phthalocyanine Derivative as Hole‐Transporting Material with Improved Performance and Stability

Metallated Macrocyclic Derivatives as a Hole – Transporting Materials for Perovskite Solar Cells

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