A Novel Dye-Sensitized Solar Cell Structure Based on Metal Photoanode without FTO/ITO

In pursuit of a renewable, inexpensive, sustainable, and compact energy source to replace fossil fuels, solar photovoltaic devices have become an ideal alternative to meet human needs for environmentally friendly, affordable, and portable power sources. It is due to their excellent mechanical robustness and outstanding energy conversion efficiency. Concerning the increasing demand for flexible and wearable electronic devices with standalone power sources, much attention has been paid to photovoltaics' flexibility and lightweight developments. Along with high mechanical flexibility and lightweight, flexible photovoltaic devices have the advantages of conformability, bendability, wearability, moldability, and roll‐to‐roll processing into complex shapes that can produce niche products. Emerging solar cells, among other photovoltaic technologies, have been exalted for their high conversion efficiency, low cost, and ease of production, making them a viable new‐generation photovoltaic technology. The main commercialization choice for cutting‐edge solar cells is flexible dye‐sensitized and perovskite solar cells since they can be made using a roll‐to‐roll printing technique and are appropriate for mass manufacturing. More significantly, flexible evolving solar cells may be created on ultrathin and light substrates to fulfill the demands of the developing flexible electronics industry and discover uses that are not possible with traditional photovoltaic technology. In any flexible device, the substrate is a backbone on which further materials rely. A flexible substrate reduces the installation and transportation charges, thereby reducing the system price and increasing power conversion efficiency. In this review, we comprehensively assess relevant materials suitable for making flexible photovoltaic devices. Several flexible substrate materials, including ultra‐thin glass, metal foils, and various types of polymer materials, have been considered. For conducting materials, transparent conducting oxides, metal nanowires/grids, carbon nanomaterials, and conducting polymers have also been comprehended. Progress on various flexible foils, fabrication and stability issues, current challenges, and solutions to those challenges of using conductive polymer substrate is endorsed and reviewed in detail. The originality of this holistic study lies in its ability to offer a thorough overview of recent advancements in flexible dye‐sensitized and perovskite solar cells on polymer substrates, which is conceivable and worthy as a roadmap for future research work.

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“…Flexible dye sensitized solar cells on polymer substrates. Reproduced with permission from the other studies 211–216 …”

Section: Polymer Substrates Based Flexible Emerging Pvsmentioning

confidence: 99%

Progress, challenges, and perspectives on polymer substrates for emerging flexible solar cells: A holistic panoramic review

Subudhi

Punetha

2023

Progress in Photovoltaics

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“…Similarly, Dong et al fabricated 2D SnS nanoflakes on PET substrate for flexible and broadband photodetectors and found very high responsivity of 69 A W –1 at 1550 nm and rise and fall time of 44 and 53 ms, respectively . These observations reveal that the substrate options selected for the device fabrication are vital for each of the many photodetectors under investigation, and the ones that have been so far researched include Si, fluorine-doped tin oxide (FTO) glass, indium tin oxide (ITO) glass, and, in the majority of cases, PET substrate as the flexible one. − Therefore, it is crucial to consider alternative substrate materials that enable the electronic components to bend and stretch without breaking, in light of the interest in flexible and wearable electronic gadgets. Additionally, it is usually preferable to have scalable production, provided the resources are affordable and environmentally benign.…”

Section: Introductionmentioning

confidence: 99%

Flexible and Hand-Printed Photodetector Based on Mg–SnS Nanoflakes

Shah,

Pataniya,

Som

et al. 2024

ACS Appl. Nano Mater.

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High-performance photodetection is becoming increasingly important for the advancement of technology. Very few materials are available that can respond to light across the ultraviolet to the infrared (IR) range. These materials are very much required for optoelectronic devices. Two-dimensional (2D) layered materials became relevant following the discovery of graphene. Transition-metal chalcogenides belong to the 2D layered material class, as well. The field of optoelectronic applications makes extensive use of them. The current study investigated the photodetector device by doping pure SnS nanoflakes with Fe, Mn, Mg, Pd, and W. These materials were used to create paper-based, flexible, biodegradable electronics through a solvent-free hand-print technique. The Mgdoped SnS photodetector has the highest photo response performance among the devices. With a specific detectivity value of 1.64 × 10 10 Jones and a responsivity value of 52 mA W −1 , the 7% Mg-doped SnS exhibits the best response among the different Mg doping. Extensive on−off cycles were used to assess the switching stability of the device, observing clear photo response and photoswitching behavior. The photoswitching curves of the device as created and the device after 8 months show an amazing degree of consistency, indicating the device's resilience in open-air environments. The device was bent repeatedly to test its twisting, foldability, and flexibility. It continuously displayed a definite photoswitching trend. Testing in a very basic and acidic environment verified the device's chemical stability, and its photo response and photoswitching functions remain functional. When the paperbased photodetector's thermal stability was examined at various temperatures, the findings demonstrated that the device continues to function normally and produce photocurrent. Considering how quickly technology is developing nowadays and how much waste is produced by electronics, switching to paper-based gadgets could help achieve sustainability goals.

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“…[ 21 ] Yang and co‐workers fabricated all‐metal (stainless‐steel) electrode (structure having external light‐receiving layer and small holes on the electrode) based TCO‐free DSSCs utilizing N719 dye with PCE of 0.83%. [ 22 ] Their PCE increased to 3.86% when titanium was used as a photoanode. In this work, we are exploring the TCO‐less DSSC with organic‐metal‐free indoline dyes D 205 and D 131 instead of commonly utilized Ru‐based N71 dye because it is very expensive owing to rarity of the metal and requires very high purification process and it also possesses lower absorption coefficients compared with its organic counterparts employing iodine electrolyte with respect to its TCO‐based DSSC counterpart.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Device Parameters for Back‐Contact Transparent Conductive Oxide–Less Dye‐Sensitized Solar Cells Fabrication

Molla

Baranwal

Hayase

et al. 2023

Physica Status Solidi (a)

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Transparent conductive oxide–less (TCO‐less) dye‐sensitized solar cell (DSSC) has been constructed and characterized employing mesoporous TiO2‐coated stainless‐steel mesh (S‐S‐mesh or Mesh) as a bendable photoanode and iodine‐based redox electrolyte. Efforts have been directed toward optimizing electronic parameters to enhance the power conversion efficiency (PCE) of TCO‐less DSSC to equalize its TCO‐based DSSC counterpart. It is found that protection of Mesh is essential for increasing the PCE of TCO‐less DSSCs employing iodine electrolyte as assured by suppressed reverse saturation current and better diode factor. The PCE of 5.6% is obtained with TCO‐less DSSC compared with TCO‐based DSSC with PCE of 6.09%. A bit of decrease in PCE with TCO‐less DSSC is due to larger resistance in TiO2/dye/electrolyte as well as within electrolyte as evident by electrochemical impedance spectroscopy (EIS) study owing to the Mesh having perforated holes and larger thickness of electrolyte absorbing sheet of the porous polytetrafluoroethylene film (35 μm) compared to TCO‐based DSSC without any barriers and lower electrolyte layer thickness of 25 μm.

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A Novel Dye-Sensitized Solar Cell Structure Based on Metal Photoanode without FTO/ITO

Cited by 8 publications

References 38 publications

Progress, challenges, and perspectives on polymer substrates for emerging flexible solar cells: A holistic panoramic review

Progress, challenges, and perspectives on polymer substrates for emerging flexible solar cells: A holistic panoramic review

Flexible and Hand-Printed Photodetector Based on Mg–SnS Nanoflakes

Optimization of Device Parameters for Back‐Contact Transparent Conductive Oxide–Less Dye‐Sensitized Solar Cells Fabrication

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