Commercial Applications of Indoor Photovoltaics Based on Flexible Perovskite Solar Cells

Editorial Material Chemistry, Physical

The Path to Perovskite Commercialization: A Perspective from the United States Solar Energy Technologies Office

Timothy D. Siegler et al.

ACS ENERGY LETTERS (2022)

Article Chemistry, Multidisciplinary

Charge Extraction in Flexible Perovskite Solar Cell Architectures for Indoor Applications - with up to 31% Efficiency

Cristina Teixeira et al.

Summary: Perovskite solar cells have high efficiencies even under low-light indoor conditions. Different architectures, including metal electrode, carbon electrode, and HTM-free carbon electrode, have been proposed for specific applications. The carbon electrode structure shows high stability and adaptability for large-scale production, while the HTM-free carbon electrode simplifies the fabrication process. These new structures achieve record efficiencies for flexible PSCs at indoor light conditions.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Multidisciplinary Sciences

Perovskite solar cells with atomically coherent interlayers on SnO2 electrodes

Hanul Min et al.

Summary: By introducing an interlayer between the electron-transporting and perovskite layers in perovskite solar cells, researchers have successfully enhanced charge extraction and transport from the perovskite, leading to higher power conversion efficiency and fewer interfacial defects. The coherent interlayer allowed the fabrication of devices with a certified efficiency of 25.5%, which maintained about 90% of its initial efficiency even after continuous light exposure for 500 hours. The findings provide guidelines for designing defect-minimizing interfaces in metal halide perovskites and electron-transporting layers.

NATURE (2021)

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Article Nanoscience & Nanotechnology

Roll-to-roll manufacturing toward lab-to-fab-translation of perovskite solar cells

Tae-Youl Yang et al.

Summary: Perovskite solar cells (PSCs) as an emerging photovoltaic technology have made some breakthroughs towards commercialization, but there are still issues to be addressed for large-scale production using roll-to-roll (R2R) processes, including scalable deposition of layers, considerations for the R2R process, and factors like low-temperature heat treatment.

APL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

40.1% Record Low-Light Solar-Cell Efficiency by Holistic Trap-Passivation using Micrometer-Thick Perovskite Film

Xilai He et al.

Summary: Perovskite solar cells show high efficiency in both full sunlight and low-light conditions, with a record efficiency of 40.1% achieved under warm LED light. A holistic passivation strategy reduces trap states in both surface and bulk of the perovskite film, resulting in increased charge carrier lifetimes and decreased nonradiative recombination loss. This work paves the way for high-performance, self-powered IoT devices.

ADVANCED MATERIALS (2021)

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Article Chemistry, Physical

Emerging Indoor Photovoltaic Technologies for Sustainable Internet of Things

Vincenzo Pecunia et al.

Summary: This article discusses the challenge of powering IoT devices through energy harvesting, with a focus on indoor photovoltaics as an attractive solution. It highlights the importance of eco-friendly materials and fabrication processes in order to sustainably power IoT devices. Emerging lead-free perovskite-inspired IPV technologies offer a promising direction for low-cost, durable, and efficient energy harvesting that is not harmful to users or the environment.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Physical