High-Performance, Air-Stable, Low-Temperature Processed Semitransparent Perovskite Solar Cells Enabled by Atomic Layer Deposition

Chang, Ching‐Ping; Lee, Kuan Ting; Huang, Wei-Chen; Siao, Hao Yi; Chang, Yu Chia

doi:10.1021/acs.chemmater.5b01933

Cited by 220 publications

(202 citation statements)

References 64 publications

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“…98 Chang et al use the concept of a dense alumina layer as protective barrier and show that the atomic layer deposition of an Al 2 O 3 layer significantly improves the air-stability due to the very low oxygen and water vapor transmission of the barrier layer. 99 More challenging is the device encapsulation for devices on flexible substrates. Weerasinghe and co-workers show that full encapsulation is needed for a flexible device.…”

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confidence: 99%

Research Update: Strategies for improving the stability of perovskite solar cells

et al. 2016

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The power-conversion efficiency of perovskite solar cells has soared up to 22.1% earlier this year. Within merely five years, the perovskite solar cell can now compete on efficiency with inorganic thin-film technologies, making it the most promising of the new, emerging photovoltaic solar cell technologies. The next grand challenge is now the aspect of stability. The hydrophilicity and volatility of the organic methylammonium makes the work-horse material methylammonium lead iodide vulnerable to degradation through humidity and heat. Additionally, ultraviolet radiation and oxygen constitute stressors which can deteriorate the device performance. There are two fundamental strategies to increasing the device stability: developing protective layers around the vulnerable perovskite absorber and developing a more resilient perovskite absorber. The most important reports in literature are summarized and analyzed here, letting us conclude that any long-term stability, on par with that of inorganic thin-film technologies, is only possible with a more resilient perovskite incorporated in a highly protective device design.

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confidence: 99%

Research Update: Strategies for improving the stability of perovskite solar cells

et al. 2016

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“…168 A top electrode made of silver nanowires has however been implemented in flexible PSCs based on metal fibers. In fact, a metal substrate can also be in the form of fibers or meshes, which have already been adopted in other PV technologies and OLEDs.…”

Section: View Article Onlinementioning

confidence: 99%

Progress, challenges and perspectives in flexible perovskite solar cells

Giacomo

Fakharuddin

Jose

et al. 2016

Energy Environ. Sci.

382

257

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a Perovskite solar cells have attracted enormous interest since their discovery only a few years ago because they are able to combine the benefits of high efficiency and remarkable ease of processing over large areas. Whereas most of research has been carried out on glass, perovskite deposition and synthesis is carried out at low temperatures (o150 1C) to convert precursors into its final semiconducting form. Thus, developing the technology on flexible substrates can be considered a suitable and exciting arena both from the manufacturing view point (e.g. web processing, low embodied energy manufacturing) and that of the applications (e.g. flexible, lightweight, portable, easy to integrate over both small, large and curved surfaces). Research has been accelerating on flexible PSCs and has achieved notable milestones including PCEs of 15.6% on laboratory cells, the first modules being manufactured, ultralight cells with record power per gram ratios, and even cells made on fibres.Reviewing the literature, it becomes apparent that more work can be carried out in closing the efficiency gap with glass based counterparts especially at the large-area module level and, in particular, investigating and improving the lifetime of these devices which are built on inherently permeable plastic films. Here we review and provide a perspective on the issues pertaining progress in materials, processes, devices, industrialization and costs of flexible perovskite solar cells. Broader contextFor a number of years, solar cells had been considered as an inferior energy technology due to high cost -even in the renewable energy paradigm; however, more recently progress in materials processing and engineering of highly efficient and stable solar panels have helped them emerge as a frontline renewable energy technology with energy payback time that has been lowered from over a decade to a couple of years (at least in some parts of the world) during the last ten years. Commercial solar panels are typically manufactured on rigid platforms. Fabricating them on flexible substrates, such as transparent plastics and metallic foils, would enable effective harvesting of energy in a number of diverse areas from indoor electronics to automobiles and from building integrated photovoltaics to portable applications. Furthermore, it would open up web-based roll-to-roll fabrication conducive to massive throughputs. Solution processable perovskite solar cells offer promising opportunities towards this end. Being these cells the most efficient among the solution processable ones, with efficiency in their laboratory scale devices on par with the commercially available silicon and thin film counterparts, significant recent efforts devoted to their manufacturing on flexible substrates have seen efficiencies rise as high as 15.6% together with moderate stability. We approach the developments in this area by critically analyzing the factors affecting the final performance indicators such as efficiency, stability, and functionality and relate these to its proces...

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“…Researchers worldwide have demonstrated many protective coatings to suppress the ingression of moisture into the perovskite layer. Depositing a protective layer of epoxy/Ag paint, CNTs, Al 2 O 3 , Cr 2 O 3 , and ZnO has proven to enhance the perovskite stability to a considerable amount [183][184][185][186]. Hwang et al used a hydrophobic polymer Polytetrafluoroethylene as a perovskite shielding layer, showing negligible PCE loss after 30 days of ambient exposure [187].…”

Section: By Proper Device Encapsulationmentioning

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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High-Performance, Air-Stable, Low-Temperature Processed Semitransparent Perovskite Solar Cells Enabled by Atomic Layer Deposition

Cited by 220 publications

References 64 publications

Research Update: Strategies for improving the stability of perovskite solar cells

Research Update: Strategies for improving the stability of perovskite solar cells

Progress, challenges and perspectives in flexible perovskite solar cells

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

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