From Kitchen to Rooftop: Lightweight and Flexible Perovskite Solar Cell incorporating Aluminium foil as a Dual-purpose Electrode

Arun Kumar^a, Sonia Rani^a, Dhriti Sundar Ghosh^a

^aIndian Institute of Technology Bhilai, Old Dhamtari Road, Raipur, India

International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV23)

London, United Kingdom, 2023 June 12th - 14th

Organizers: Tracey Clarke, James Durrant and Trystan Watson

Poster, Arun Kumar, 058
Publication date: 30th March 2023

Flexible and lightweight photovoltaic devices have attracted great attention in recent years owing to their application in wearable and portable electronic devices. However, the use of polymer substrates obstructs the fabrication of highly efficient and functionally stable devices due to their limitations like low transmittance, poor temperature tolerance, photodegradation, high material cost, etc. In addition, conventional flexible transparent electrodes such as indium tin oxide (ITO) deposited on polymeric substrates have poor electro-optical properties compared to their glass counterpart and are still brittle, which not only negatively affect the performance of the device but also the flexibility/bendability.

Here in this work, for the realization of a flexible photovoltaic device, a kitchen-grade aluminum foil providing a lightweight, low-cost, mechanically flexible substrate-cum-electrode has been utilized for the fabrication of the devices. Also, an indium-free, oxide-metal-oxide (OMO) based transparent electrode (TE) exhibiting a sheet resistance below 7 Ω/□ and an average visible transmittance above 75% is used as a top TE. A power conversion efficiency (PCE) of over 10% is obtained with a high power per unit weight of over 1.2 W/g which is much higher than conventional solar cells. The present work traces a way towards the fabrication of lightweight and flexible photovoltaic and other optoelectronic devices by incorporation of metallic foil as substrate-cum-electrode.

References:

[1] Feleki, B. T., Bouwer, R. K. M., Zardetto, V., Wienk, M. M. & Janssen, R. A. J. p-i-n Perovskite Solar Cells on Steel Substrates. ACS Appl. Energy Mater. 5, 6709–6715 (2022). 2. Abdollahi Nejand, B., Nazari, P., Gharibzadeh, S., Ahmadi, V. & Moshaii, A. All-inorganic large-area low-cost and durable flexible perovskite solar cells using copper foil as a substrate. Chem. Commun. 53, 747–750 (2017). 3. Xiao, Y., Han, G., Zhou, H. & Wu, J. An efficient titanium foil based perovskite solar cell: using a titanium dioxide nanowire array anode and transparent poly(3,4-ethylenedioxythiophene) electrode. RSC Adv. 6, 2778–2784 (2016).

[2] Abdollahi Nejand, B., Nazari, P., Gharibzadeh, S., Ahmadi, V. & Moshaii, A. All-inorganic large-area low-cost and durable flexible perovskite solar cells using copper foil as a substrate. Chem. Commun. 53, 747–750 (2017).

[3] Xiao, Y., Han, G., Zhou, H. & Wu, J. An efficient titanium foil based perovskite solar cell: using a titanium dioxide nanowire array anode and transparent poly(3,4-ethylenedioxythiophene) electrode. RSC Adv. 6, 2778–2784 (2016).

Acknowledgements:

Arun Kumar and Sonia Rani acknowledge Prime Minister Research Fellowship (PMRF-192002-1086 and PMRF-192002-2025 respectively). Dhriti Sundar Ghosh acknowledges funding support from the Department of Science and Technology (DST) of India via grants DST/NM/NT/2018/146, ECR/2018/002132, and SB/S2/RJN-048/2016.

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