Identification of Degradation Mechanisms in Slot-Die-Coated Nonfullerene ITO-Free Organic Solar Cells Using Different Illumination Spectra

Arredondo, B.; Pozo, Gonzalo del; Hernández‐Balaguera, Enrique; Martín, Diego; González, María del Carmen López; Romero, B.; López-Fraguas, Eduardo; Vergaz, Ricardo; Quintana, Xabier; Lamminaho, Jani; Destouesse, Elodie; Ahmadpour, Mehrad; Turkovic, Vida; Madsen, Morten

doi:10.1021/acsaem.0c00711

Cited by 8 publications

(6 citation statements)

References 45 publications

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“…The antioxidants are relevant as industrial processing always allows for inclusion of small amounts of oxygen in the cell during fabrication (done in air), which even the best encapsulant cannot protect against. Transport layer interface degradation is also well-known, in particular for many new non-fullerene based organic solar cell systems [236,237], for example due to photocatalytic decomposition of these molecules at metal oxide interfaces. This has made studies on transport layer interfaces very relevant for the OPV field [238].…”

Section: Pv Generators For Iotmentioning

confidence: 99%

Powering internet-of-things from ambient energy: a review

et al. 2023

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Internet-of-thing (IoT) is an assembly of devices that collect and share data with other devices and communicate via the internet. This massive network of devices, generates and communicates data and is the key to the value in IoT, allowing access to raw information, gaining insight, and making an intelligent decisions. Today, there are billions of IoT devices such as sensors and actuators deployed. Many of these applications are easy to connect, but those tucked away in hard-to-access spots will need to harvest ambient energy. Therefore, the aim is to create devices that are self-report in real-time. Efforts are underway to install a self-powered unit in IoT devices that can generate sufficient power from environmental conditions such as light, vibration, and heat. In this review paper, we discuss the recent progress made in materials and device development in power- and, storage units, and power management relevant for IoT applications. This review paper will give a comprehensive overview for new researchers entering the field of IoT and a collection of challenges as well as perspectives for people already working in this field.

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Section: Pv Generators For Iotmentioning

confidence: 99%

Powering internet-of-things from ambient energy: a review

et al. 2023

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“…Consequently, ITIC exhibits much stronger degradation under UV light compared to the visible light region. In addition to the UV light, Arredondo et al [64] also used two monochromatic illuminations (λ = 630 and 450 nm) to study the photon stability of PBDB-T:ITIC system upon red or blue incident light. They found that although blue light can penetrate deeper in the sample while red light is mainly absorbed near the anode, the incident red light at 630 nm caused significant degradation in the photoactive layer.…”

Section: (8 Of 23)mentioning

confidence: 99%

Stability Of Non‐Fullerene Electron Acceptors and Their Photovoltaic Devices

Liu

Wang

2021

Adv Funct Materials

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Non-fullerene electron acceptors (NFAs) are recognized as "rising star" in recent years in the organic solar cells (OSCs) community. In contrast to the traditional fullerene electron acceptors, NFAs promise superior feasibility in molecular design with tunable optoelectronic properties, experiencing unprecedented development in the last 5 years with maximum achievable power conversion efficiencies over 18% are acquired in NFA based OSCs. Nevertheless, the stability of NFAs and their OSCs is still problematic and not well understood, and is regarded as the bottleneck toward the commercialization of NFA based OSCs. In this review, recent advances and current understanding of the stability of NFAs and their corresponding OSCs are presented. Specifically, three key factors, including chemical-, photon-, and thermal-, induced degradations in NFAs are analyzed and summarized, with approaches to enhance the stability suggested. This is followed by the discussion of shelf and operational stability of NFA based OSCs, with highlights of operational stabilities in inert, ambient, indoor, and outdoor conditions. It is envisaged that operational lifetime of over 20 years in real world is achievable via the joint efforts from material design, morphology control, interfacial engineering, and encapsulation technology.

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“…The introduction (or doping) of various materials, such as perylene bisimides, fullerene derivatives, aluminum, and different two-dimensional (2D) materials, into ZnO electron transport layers have been reported, yielding, e.g., improved conductivity and electron extraction properties and thus enhancing the overall device performance. A main drawback is the photocatalytic activity of ZnO, which in particular for several nonfullerene acceptor molecules has shown to lead to photodegradation of the active layer molecules and thus significantly hamper the device lifetime. − In recent years, MXenes, a young class of 2D transition metal carbides and nitrides consisting of the general formula M n +1 X n T x , where M indicates a transition metal, X indicates C and/or N, and T x indicates terminal groups such as −OH, −F, O, or −Cl, have been extensively explored, as MXenes exhibit high electrical conductivity, high transmittance, as well as good chemical stability. Moreover, MXenes exhibit versatile surface chemistry, and the opportunities of tailoring their surface characteristics and work functions has triggered huge attention for the perovskite and OSC fields. − …”

Section: Introductionmentioning

confidence: 99%

2D MXene-Based Electron Transport Layers for Nonhalogenated Solvent-Processed Stable Organic Solar Cells

Aryal

Pazniak

Kumari

et al. 2023

ACS Appl. Energy Mater.

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Implementation of 2D materials is one of the promising routes for improving the efficiency and stability of organic solar cells (OSCs). Due to their tunable optical and electronic properties, MXenes, a family of 2D transition metal carbides and nitrides, have attracted considerable attention and demonstrated their potential for next-generation solar cells. In this work, Ti3C2T x MXene was added into ZnO precursors and applied as a modified composite electron transport layer (ETL) in PM6:N3-based inverted OSCs. The nonhalogenated solvent o-xylene was employed as the active layer solvent for the development of stable, efficient, and eco-friendly OSCs. By optimizing the concentration of Ti3C2T x in the ZnO ETL, the solar cells exhibited power conversion efficiencies (PCEs) of 14.1 and 13.7% for 0.5 and 2 wt % MXene, respectively, as compared to neat ZnO layer devices with a PCE of 14.9%. Interestingly, the MXene-based PM6:N3 OSC devices showed superior device stability compared to the reference cells. It is demonstrated that the MXene introduced in the composite ZnO-based ETL mitigates the photocatalytic decomposition of the organic active layer on the ZnO surface, as analyzed via optical spectroscopy and hard X-ray photoelectron spectroscopy, which appears as a main reason for improved device stability. We thus report on the usage of MXene in green solvent-processed OSCs to enhance the lifetime of solar cells and thus address an important bottleneck in high-performance nonfullerene acceptor solar cells.

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Identification of Degradation Mechanisms in Slot-Die-Coated Nonfullerene ITO-Free Organic Solar Cells Using Different Illumination Spectra

Cited by 8 publications

References 45 publications

Powering internet-of-things from ambient energy: a review

Powering internet-of-things from ambient energy: a review

Stability Of Non‐Fullerene Electron Acceptors and Their Photovoltaic Devices

2D MXene-Based Electron Transport Layers for Nonhalogenated Solvent-Processed Stable Organic Solar Cells

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