New generation perovskite solar cells with solution-processed amino-substituted perylene diimide derivative as electron-transport layer

Zhang, Hua; Xue, Ling-Wei; Han, Junbo; Fu, Yong Qing; Shen, Yan; Zhang, Zhiguo; Li, Yongfang; Wang, Mingkui

doi:10.1039/c6ta03119f

Cited by 123 publications

(91 citation statements)

References 60 publications

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“…n-type polymers, [15,16] zinc oxide, [17,18] functionalized perylene diimides, [19][20][21][22][23][24][25] and fullerene derivatives. [26,27] Among all these materials, readily available fullerene-based compound, [60]PCBM, has been utilized most extensively either alone or in combination with various polymer binders.…”

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confidence: 99%

Effect of Electron‐Transport Material on Light‐Induced Degradation of Inverted Planar Junction Perovskite Solar Cells

Akbulatov

Frolova

Griffin

et al. 2017

Advanced Energy Materials

115

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This paper presents a systematic study of the influence of electron‐transport materials on the operation stability of the inverted perovskite solar cells under both laboratory indoor and the natural outdoor conditions in the Negev desert. It is shown that all devices incorporating a Phenyl C61 Butyric Acid Methyl ester ([60]PCBM) layer undergo rapid degradation under illumination without exposure to oxygen and moisture. Time‐of‐flight secondary ion mass spectrometry depth profiling reveals that volatile products from the decomposition of methylammonium lead iodide (MAPbI3) films diffuse through the [60]PCBM layer, go all the way toward the top metal electrode, and induce its severe corrosion with the formation of an interfacial AgI layer. On the contrary, alternative electron‐transport material based on the perylendiimide derivative provides good isolation for the MAPbI3 films preventing their decomposition and resulting in significantly improved device operation stability. The obtained results strongly suggest that the current approach to design inverted perovskite solar cells should evolve with respect to the replacement of the commonly used fullerene‐based electron‐transport layers with other types of materials (e.g., functionalized perylene diimides). It is believed that these findings pave a way toward substantial improvements in the stability of the perovskite solar cells, which are essential for successful commercialization of this photovoltaic technology.

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confidence: 99%

Effect of Electron‐Transport Material on Light‐Induced Degradation of Inverted Planar Junction Perovskite Solar Cells

Akbulatov

Frolova

Griffin

et al. 2017

Advanced Energy Materials

115

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“…The J – V curve of the electron‐only device is shown in Figure S3. The electron mobility of TCl‐PDI is calculated to be 2.75×10 −5 cm 2 V −1 s −1 , which is higher than those of some PDI‐based ETMs, The high electron mobility may be due to the contribution of lone‐pair electrons of chlorine to the conjugated system.…”

Section: Resultsmentioning

confidence: 82%

Perylene Diimide‐Based Electron‐Transporting Material for Perovskite Solar Cells with Undoped Poly(3‐hexylthiophene) as Hole‐Transporting Material

et al. 2019

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Perylene diimide‐based small molecules are widely used as intermediates of liquid crystals, owing to their high planarity and electron mobility. In this study, tetrachloroperylene diimide (TCl‐PDI) was used as a small‐molecule replacement for TiO2 as electron‐transporting material (ETM) for planar perovskite solar cells (PVSCs). Among hole‐transporting materials (HTMs) for PVSCs, poly(3‐hexylthiophene) (P3HT) gives the devices the highest stability and reproducibility. Therefore, PVSCs with the structure of indium tin oxide (ITO)/ETM/perovskite/P3HT/MoO3/Ag were used to evaluate the performances of new ETMs. A reference device with compact TiO2 and P3HT gave a reasonable power conversion efficiency (PCE) of 12.78 %, whereas the PVSC with TCl‐PDI as ETM gave an enhanced PCE of 14.73 %, which is among the highest reported values for PVSCs with undoped P3HT as the HTM. Moreover, TCl‐PDI‐based devices displayed higher stability than those based on compact TiO2, owing to the superior perovskite quality.

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“…[46][47][48] To examine the morphology of the prepared CuCrO 2 nanocrystals, TEM, high-resolution TEM (HRTEM), and SAED characterizations were then performed. [49][50][51][52][53][54][55] On account of the sheet-like morphology, close inspection by HRTEM (Figure 2d,e) revealed that numerous CuCrO 2 nanocrystals with the denoted lattice fringes possess undefinedshaped borders. This feature agrees well with the observed broad line width in the XRD pattern of CuCrO 2 .…”

Section: Structural and Morphological Characterizationmentioning

confidence: 99%

Low‐Temperature Solution‐Processed CuCrO₂ Hole‐Transporting Layer for Efficient and Photostable Perovskite Solar Cells

Zhang

Wang

Zhu

et al. 2018

Advanced Energy Materials

Self Cite

145

114

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Organic–inorganic hybrid perovskite solar cells (PVSCs) have become the front‐running photovoltaic technology nowadays and are expected to profoundly impact society in the near future. However, their practical applications are currently hampered by the challenges of realizing high performance and long‐term stability simultaneously. Herein, the development of inverted PVSCs is reported based on low temperature solution‐processed CuCrO2 nanocrystals as a hole‐transporting layer (HTL), to replace the extensively studied NiOx counterpart due to its suitable electronic structure and charge carrier transporting properties. A ≈45 nm thick compact CuCrO2 layer is incorporated into an inverted planar configuration of indium tin oxides (ITO)/c‐CuCrO2/perovskite/[6,6]‐phenyl‐C61‐butyric acid methyl ester (PCBM)/bathocuproine (BCP)/Ag, to result in the high steady‐state power conversion efficiency of 19.0% versus 17.1% for the typical low temperature solution‐processed NiOx‐based devices. More importantly, the optimized CuCrO2‐based device exhibits a much enhanced photostability than the reference device due to the greater UV light‐harvesting of the CuCrO2 layer, which can efficiently prevent the perovskite film from intense UV light exposure to avoid associated degradation. The results demonstrate the promising potential of CuCrO2 nanocrystals as an efficient HTL for realizing high‐performance and photostable inverted PVSCs.

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New generation perovskite solar cells with solution-processed amino-substituted perylene diimide derivative as electron-transport layer

Abstract: In this study, for the first time, we introduced amino-substituted perylene diimide derivative (N-PDI) as an alternative electron transport layer (ETL) to replace the commonly used TiO2 in planar heterojunction perovskite solar cells.

Cited by 123 publications

References 60 publications

Effect of Electron‐Transport Material on Light‐Induced Degradation of Inverted Planar Junction Perovskite Solar Cells

Effect of Electron‐Transport Material on Light‐Induced Degradation of Inverted Planar Junction Perovskite Solar Cells

Perylene Diimide‐Based Electron‐Transporting Material for Perovskite Solar Cells with Undoped Poly(3‐hexylthiophene) as Hole‐Transporting Material

Low‐Temperature Solution‐Processed CuCrO₂ Hole‐Transporting Layer for Efficient and Photostable Perovskite Solar Cells

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New generation perovskite solar cells with solution-processed amino-substituted perylene diimide derivative as electron-transport layer

Abstract: In this study, for the first time, we introduced amino-substituted perylene diimide derivative (N-PDI) as an alternative electron transport layer (ETL) to replace the commonly used TiO2 in planar heterojunction perovskite solar cells.

Cited by 123 publications

References 60 publications

Effect of Electron‐Transport Material on Light‐Induced Degradation of Inverted Planar Junction Perovskite Solar Cells

Effect of Electron‐Transport Material on Light‐Induced Degradation of Inverted Planar Junction Perovskite Solar Cells

Perylene Diimide‐Based Electron‐Transporting Material for Perovskite Solar Cells with Undoped Poly(3‐hexylthiophene) as Hole‐Transporting Material

Low‐Temperature Solution‐Processed CuCrO2 Hole‐Transporting Layer for Efficient and Photostable Perovskite Solar Cells

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Low‐Temperature Solution‐Processed CuCrO₂ Hole‐Transporting Layer for Efficient and Photostable Perovskite Solar Cells