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Carbon-Based Electrode Engineering Boosts the Efficiency of All Low-Temperature-Processed Perovskite Solar Cells AITranslate

Sisi He; Longbin Qiu; DaeYong Son; Zonghao Liu; Emilio J. JuarezPerez; Luis K. Ono; Collin Stecker; Yabing Qi;
Okinawa Institute of Science and Technology Graduate University (OIST); Okinawa Institute of Science and Technology Graduate University (OIST); Okinawa Institute of Science and Technology Graduate University (OIST); Okinawa Institute of Science and Technology Graduate University (OIST); Okinawa Institute of Science and Technology Graduate University (OIST); Okinawa Institute of Science and Technology Graduate University (OIST); Okinawa Institute of Science and Technology Graduate University (OIST); Okinawa Institute of Science and Technology Graduate University (OIST)
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Abstract AITranslate

Carbon electrode-based perovskite solar cells (PSCs) with low-cost and long-term stability have been recognized as a competitive candidate toward future practical applications. However, energy level mismatch and ineffective hole extraction at the carbon electrode/perovskite interface limit device performance. Herein, we develop a low-cost carbon-based electrode that utilizes a cheap small-molecule semiconductor copper phthalocyanine (CuPc) as both the interface modifier and dopant. The resultant planar PSC yields a power conversion efficiency of 14.8%, ∼30% higher than that based on the bare carbon electrode. This is due to higher work function and better hole extraction properties of the CuPc-modified carbon electrodes. The simple modification process of the carbon electrode has potential applications for large-scale fabrication. We further applied such electrodes in large-area solar modules and flexible solar cells, demonstrating their capability of upscaling and flexibility.

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DOI：https://doi.org/10.1021/acsenergylett.9b01294

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Citation Information:

Carbon electrode-based perovskite solar cells (PSCs) with low-cost and long-term stability have been recognized as a competitive candidate toward future practical applications. However, energy level mismatch and ineffective hole extraction at the carbon electrode/perovskite interface limit device performance. Herein, we develop a low-cost carbon-based electrode that utilizes a cheap small-molecule semiconductor copper phthalocyanine (CuPc) as both the interface modifier and dopant. The resultant planar PSC yields a power conversion efficiency of 14.8%, ∼30% higher than that based on the bare carbon electrode. This is due to higher work function and better hole extraction properties of the CuPc-modified carbon electrodes. The simple modification process of the carbon electrode has potential applications for large-scale fabrication. We further applied such electrodes in large-area solar modules and flexible solar cells, demonstrating their capability of upscaling and flexibility.

quote

GB/T 7714-2015 [1] Sisi He, Longbin Qiu, DaeYong Son, et al. ACS Energy Letters, 2019(4). DOI:10.1021/acsenergylett.9b01294.
MLA [1] Sisi He, et al., ACS Energy Letters, no. 4, 2019, https://doi.org/10.1021/acsenergylett.9b01294.
APA [1] Sisi He, Longbin Qiu, DaeYong Son, Zonghao Liu, Emilio J. JuarezPerez, Luis K. Ono, Collin Stecker, & Yabing Qi. (2019). ACS Energy Letters(4). https://doi.org/10.1021/acsenergylett.9b01294
IEEE [1] Sisi He, Longbin Qiu, DaeYong Son, Zonghao Liu, Emilio J. JuarezPerez, Luis K. Ono, Collin Stecker, and Yabing Qi, ACS Energy Letters, no. 4, 2019, doi: 10.1021/acsenergylett.9b01294.