Two dimethoxyphenylamine-substituted carbazole derivatives as hole-transporting materials for efficient inorganic-organic hybrid perovskite solar cells

Zhang, Mingdao; Zheng, Baohui; Zhuang, Qi-Fan; Huang, Cheng-Yan; Cao, Hui; Chen, Mindong; Wang, Bin

doi:10.1016/j.dyepig.2017.07.037

Cited by 28 publications

(15 citation statements)

References 30 publications

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“…Carbazole-based derivatives have attracted much attention as charge-transporting materials for organic light-emitting diodes (OLEDs), DSSCs and PSCs [ 101 , 102 , 103 ]. Their interesting photophysical properties such as intense luminescence and reversible oxidation processes, together with the reasonable synthetic costs, the versatility of the carbazole reactive sites and the excellent charge transport properties justify the efforts to find novel solutions for low-cost HTMs for PSCs in this class of compounds [ 10 , 40 , 82 , 83 , 84 , 86 , 87 , 88 , 89 , 90 , 91 , 92 ].…”

Section: Hole-transporting Materialsmentioning

confidence: 99%

“…As HTM, CA-XIII resulted in a PSC with 13% efficiency, which is comparable to that of spiro-OMeTAD PSCs (13.76%). Recently, Zhang et al synthesized two new carbazole-based materials (CA-XIV and CA-XV; Figure 16 ) using commercially available di-substituted and tri-substituted phenyl derivatives [ 87 ]. The PSCs based on these HTMs had PCEs of 11.4% and 13.1% for CA-XIV and CA-XV, respectively (spiro-OMeTAD reference: 12.0%).…”

Section: Hole-transporting Materialsmentioning

confidence: 99%

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Hole-Transporting Materials for Printable Perovskite Solar Cells

2017

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Perovskite solar cells (PSCs) represent undoubtedly the most significant breakthrough in photovoltaic technology since the 1970s, with an increase in their power conversion efficiency from less than 5% to over 22% in just a few years. Hole-transporting materials (HTMs) are an essential building block of PSC architectures. Currently, 2,2 ,7,7 -tetrakis-(N,N -di-p-methoxyphenylamine)-9,9 -spirobifluorene), better known as spiro-OMeTAD, is the most widely-used HTM to obtain high-efficiency devices. However, it is a tremendously expensive material with mediocre hole carrier mobility. To ensure wide-scale application of PSC-based technologies, alternative HTMs are being proposed. Solution-processable HTMs are crucial to develop inexpensive, high-throughput and printable large-area PSCs. In this review, we present the most recent advances in the design and development of different types of HTMs, with a particular focus on mesoscopic PSCs. Finally, we outline possible future research directions for further optimization of the HTMs to achieve low-cost, stable and large-area PSCs.

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Section: Hole-transporting Materialsmentioning

confidence: 99%

Section: Hole-transporting Materialsmentioning

confidence: 99%

Hole-Transporting Materials for Printable Perovskite Solar Cells

2017

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“…The VBM of Hex‐1 of −5.23 eV is comparable to poly [bis (4‐phenyl) (2,4,6‐trimethylphenyl) amine] (PTAA), (2,2′,7,7′‐tetrakis (N,N‐di‐p‐methoxyphen ylamine)‐9, 9′‐spriobifluorene (Spiro‐OMeTAD) and poly[N,N′‐bis (4‐butylphenyl) ‐N,N′‐bisphenyl‐ benzidine] (PTPD). For Hex‐2 the VBM of −4.92 eV is comparable to poly((4,8‐bis(octyloxy) benzo(1,2‐b:4,5b′) dithiophene‐2,6‐diyl) (2((dodecyloxy) carbonyl) thieno (3,4b) thiophenediyl) (PTB1) and poly(3‐hexylthiophene2,5‐diyl) (P3HT) .…”

Section: Resultsmentioning

confidence: 96%

“…Significantly, these structures are stable at ambient temperature which may have varying unit cell parameters of 5.68, 5.92 and 6.27 Å for chloride, bromide and iodide anions respectively . In this study, a perovskite with iodide, in the cubic phase considered having a lattice parameter of a=6.29 Å . In general, a PSC consists of a transparent conducting glass layer i. e. Fluorine Doped Tin‐oxide (FTO) coated glass, a TiO 2 layer, a perovskite layer, a hole transporting material (HTM), and a counter electrode ,.…”

Section: Introductionmentioning

confidence: 99%

Density Functional Theory Investigation of Carbon Dots as Hole‐transport Material in Perovskite Solar Cells

et al. 2018

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Charge transfer in solar cells is crucial, and so is the hole transporting layer (HTL) component in perovskite solar cells (PSCs). Finding a suitable material for this purpose that is inexpensive -either organic or inorganic -is currently one of the prime research objectives to improve the performance, through charge transfer dynamics, of PSCs. One such recent finding is carbon quantum dots (C-dots), which is a simple and low-cost organic material that could be an alternative option to the currently employed high-cost and complex-structured hole transporting materials (HTMs) utilized in perovskite solar cells. A series of C-dots functionalized with hydrogen, hydroxyl (ÀOH), and carboxyl (ÀCOOH) groups are considered in this study for their hole-transporting properties. The results reveal that simple hexagonal structured C-dots including ÀOH and ÀCOOH group substituted C-dots have suitable valance band maximum (VBM) positions, which are suitable for hole transport. It is discovered that the position of the functional moieties on the C-dots would impact the band-edge positions of the C-dots. This implies that tuning the band position is possible so that these two-dimensional C-dots could, in principle, be used for other solar-cell applications that may require different band positions for optimal performance. As a representative example, we studied the perovskite/C-Dot interface of two different possible surfaces (i. e. MAI and PbI 2 terminated perovskites) combined with a hexagonal C-Dot layer and found that there is a good probability of charge transfer between the perovskite layer and the C-dots, which promotes hole transfer between the perovskite and the C-dots.[a] S.

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“…When used as HTM, CA-XIII exhibited a PCE of 13% which is comparable to PCE of 13.76% achieved by spiro-OMeTAD based PSC. Zhang et al 67 developed two new carbazole based materials (CA-XIV and CA-XV) utilizing commercially available di-substituted and tri-substituted phenyl derivatives. The CA-XV based PSC achieved slightly higher PCE of 13.1% as compared to 11.4% and 12.0% for CA-XIV and spiro-OMeTAD, respectively.…”

mentioning

confidence: 99%

Stability of organometal halide perovskite solar cells and role of HTMs: recent developments and future directions

2018

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Perovskite solar cells (PSCs) have recently emerged as one of the most exciting fields of research of our time, and the World Economic Forum in 2016 recognized them as one of the top 10 technologies in 2016. With 22.7% power conversion efficiency, PSCs are poised to revolutionize the way power is produced, stored and consumed. However, the widespread use of PSCs requires addressing the stability issue. Therefore, it is now time to focus on the critical step i.e. stability under the operating conditions for the development of a sustainable and durable PV technology based on PSCs. In order to improve the stability of PSCs, hole transport materials (HTMs) have been considered as the paramount components. This is due to the fact that most of the organic HTMs possess a hygroscopic and acidic nature that leads to poor stability of the PSCs. This article reviews briefly but comprehensively the environmental stability issues of PSCs, fundamentals, strategies for improvement, the role of HTMs towards stability and various types of HTMs. Also the environmental parameters affecting the performance of perovskite solar cells including temperature, moisture and light soaking environment have been considered.

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Two dimethoxyphenylamine-substituted carbazole derivatives as hole-transporting materials for efficient inorganic-organic hybrid perovskite solar cells

Cited by 28 publications

References 30 publications

Hole-Transporting Materials for Printable Perovskite Solar Cells

Hole-Transporting Materials for Printable Perovskite Solar Cells

Density Functional Theory Investigation of Carbon Dots as Hole‐transport Material in Perovskite Solar Cells

Stability of organometal halide perovskite solar cells and role of HTMs: recent developments and future directions

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