Is Cu a stable electrode material in hybrid perovskite solar cells for a 30-year lifetime?

Zhao, Jingjing; Zheng, Xiaopeng; Deng, Yehao; Li, Tao; Shao, Yuchuan; Gruverman, Alexei; Shield, Jeffrey E.; Huang, Jinsong

doi:10.1039/c6ee02980a

Cited by 265 publications

(241 citation statements)

References 41 publications

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“…In contrast, the device using the Ti/Au cathode discards the PCBM as a ETM and ensures a perfect contact between the perovskite and metal cathode, providing sufficient protection and avoiding the perovskite and PEDOT:PSS contact with the air. Moreover, it must be highlighted that Ti in direct contact with MAPbI 3 showed no reaction for a long-term exposure to moisture and oxygen, what is different from other common metal cathodes, such as Au, Al, Ag and Cu 13 . These make the PCE of the Ti/Au based ETM-free device remain above 70% of the initial value even after 300 h of storage in the ambient environment.…”

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confidence: 86%

“…At present, its PCE is below 8% and significantly less than that of HTM-free PSCs12, with large photocurrent hysteresis and lighting-soaking effects812. Moreover, the common metal cathodes, such as Ag, Al and Au strongly react with hybrid perovskite, which is one of the important reasons for the poor stability of PSCs1213. Even, Cu in direct contact with perovskite exposure to the air should also be reacted13.…”

mentioning

confidence: 99%

“…Moreover, the common metal cathodes, such as Ag, Al and Au strongly react with hybrid perovskite, which is one of the important reasons for the poor stability of PSCs1213. Even, Cu in direct contact with perovskite exposure to the air should also be reacted13. Therefore, it is urgent to find new cathode materials to improve the performances of the ETM-free PSCs.…”

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confidence: 99%

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Ti/Au Cathode for Electronic transport material-free organic-inorganic hybrid perovskite solar cells

Shi

Chen

Zheng

et al. 2016

Sci Rep

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We have fabricated organic-inorganic hybrid perovskite solar cell that uses a Ti/Au multilayer as cathode and does not use electron transport materials, and achieved the highest power conversion efficiency close to 13% with high reproducibility and hysteresis-free photocurrent curves. Our cell has a Schottky planar heterojunction structure (ITO/PEDOT:PSS/perovskite/Ti/Au), in which the Ti insertion layer isolate the perovskite and Au layers, thus proving good contact between the Au and perovskite and increasing the cells’ shunt resistance greatly. Moreover, the Ti/Au cathode in direct contact with hybrid perovskite showed no reaction for a long-term exposure to the air, and can provide sufficient protection and avoid the perovskite and PEDOT:PSS layers contact with moisture. Hence, the Ti/Au based devices retain about 70% of their original efficiency after 300 h storage in the ambient environment.

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confidence: 86%

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confidence: 99%

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confidence: 99%

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Ti/Au Cathode for Electronic transport material-free organic-inorganic hybrid perovskite solar cells

Shi

Chen

Zheng

et al. 2016

Sci Rep

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“…Copper (Cu) may be an ideal electrode material, which is stable even in direct contact with perovskite for many years, and there is no notable diffusion of Cu into the perovskite. [170] …”

Section: Wwwadvenergymatdementioning

confidence: 99%

Interface Engineering for Highly Efficient and Stable Planar p‐i‐n Perovskite Solar Cells

Yang

Meng

Yang

2017

Advanced Energy Materials

369

265

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Organic‐inorganic halide perovskite materials have become a shining star in the photovoltaic field due to their unique properties, such as high absorption coefficient, optimal bandgap, and high defect tolerance, which also lead to the breathtaking increase in power conversion efficiency from 3.8% to over 22% in just seven years. Although the highest efficiency was obtained from the TiO2 mesoporous structure, there are increasing studies focusing on the planar structure device due to its processibility for large‐scale production. In particular, the planar p‐i‐n structure has attracted increasing attention on account of its tremendous advantages in, among other things, eliminating hysteresis alongside a competitive certified efficiency of over 20%. Crucial for the device performance enhancement has been the interface engineering for the past few years, especially for such planar p‐i‐n devices. The interface engineering aims to optimize device properties, such as charge transfer, defect passivation, band alignment, etc. Herein, recent progress on the interface engineering of planar p‐i‐n structure devices is reviewed. This review is mainly focused on the interface design between each layer in p‐i‐n structure devices, as well as grain boundaries, which are the interfaces between polycrystalline perovskite domains. Promising research directions are also suggested for further improvements.

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“…However, due to Ag [191] and Al [192] not being as favoured because of stability issues, PSCs utilise more costly Au electrodes. Recent studies however have demonstrated the use of other materials such as MoO x /Al electrodes that inhibit the decomposition of perovskite films [194], multi-walled carbon nanotubes that are more cost effective and stable than gold [195], and even Cu which has a predicted stability lifetime of over 22 years at the nominal operating cell temperature [196]. Kaltenbrunner et al proposed Cr 2 O 3 /Cr-Au metal contact for enhanced stability by shielding the Au contact from oxidation and chemical etching due to MAPbI 3 released Iodine [185].…”

Section: Electrodesmentioning

confidence: 99%

Analysing the Prospects of Perovskite Solar Cells within the Purview of Recent Scientific Advancements

et al. 2018

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Abstract:For any given technology to be successful, its ability to compete with the other existing technologies is the key. Over the last five years, perovskite solar cells have entered the research spectrum with tremendous market prospects. These cells provide easy and low cost processability and are an efficient alternative to the existing solar cell technologies in the market. In this review article, we first go over the innovation and the scientific findings that have been going on in the field of perovskite solar cells (PSCs) and then present a short case study of perovskite solar cells based on their energy payback time. Our review aims to be comprehensive, considering the cost, the efficiency, and the stability of the PSCs. Later, we suggest areas for improvement in the field, and how the future might be shaped.

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Is Cu a stable electrode material in hybrid perovskite solar cells for a 30-year lifetime?

Abstract: Here we explored the potential of using copper as the electrode material for long-term stability of perovskite solar cells.

Cited by 265 publications

References 41 publications

Ti/Au Cathode for Electronic transport material-free organic-inorganic hybrid perovskite solar cells

Ti/Au Cathode for Electronic transport material-free organic-inorganic hybrid perovskite solar cells

Interface Engineering for Highly Efficient and Stable Planar p‐i‐n Perovskite Solar Cells

Analysing the Prospects of Perovskite Solar Cells within the Purview of Recent Scientific Advancements

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