Ferrocene Interlayer for a Stable and Gap-Free P3HT-Based Perovskite Solar Cell as a Low-Cost Power Source for Indoor IoTs

IF 6.5 1区物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Photonics Pub Date : 2025-01-15 DOI:10.1021/acsphotonics.4c01469

Chaowaphat Seriwattanachai, Somboon Sahasithiwat, Thana Chotchuangchutchaval, Ladda Srathongsian, Worawat Wattanathana, Zhijun Ning, Napan Phuphathanaphong, Patawee Sakata, Ko Ko Shin Thant, Thunrada Sukwiboon, Anuchytt Inna, Thanawat Kanlayapattamapong, Anusit Kaewprajak, Pisist Kumnorkaew, Ratchadaporn Supruangnet, Thipusa Wongpinij, Hideki Nakajima, Duangmanee Wongratanaphisan, Pasit Pakawatpanurut, Pipat Ruankham, Pongsakorn Kanjanaboos

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引用次数: 0

Abstract

Although poly(3-hexylthiophene-2,5-diyl) (P3HT) with its stability-boosting hydrophobic surface is a promising low-cost alternative dopant-free hole transport material for n-i-p perovskite solar cells (PSCs), the P3HT-based PSCs suffer from surface energy mismatch between hydrophilic perovskite and hydrophobic P3HT, which results in interlayer gap, poor electronic contact, and poor charge extraction. In this study, low-cost ferrocene (Fc) acts as an interlayer at the perovskite/P3HT interface, inducing the replacement of the hydrophobic edge-on stacking of alkyl side chains with the hydrophilic π–π stacking of thiophene rings within the P3HT structure to mitigate such an energy mismatch. With an optimal amount of Fc, an average PCE of 23.6% has been achieved under indoor light at 1000 lux in comparison to 20.6% of P3HT-based PSCs without Fc. In addition, an unencapsulated device with the interlayer can retain 80% of initial PCE (T80) over 12 months in the dark with 70% RH, longer than T80 of 8 months without Fc. Finally, a Bluetooth sensor module is powered by three Fc-passivated P3HT-based PSCs connected in series to demonstrate the capacity of replacing batteries used for the Internet of Things (IoTs).

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一种稳定无间隙p3ht钙钛矿太阳能电池的二茂铁中间层作为室内物联网的低成本电源

尽管具有增强稳定性的疏水表面的聚（3-己基噻吩-2,5-二基）（P3HT）是一种很有前途的低成本无掺杂空穴传输材料，但基于P3HT的PSCs存在亲水性钙钛矿与疏水性P3HT之间的表面能不匹配，导致层间间隙、电子接触不良和电荷提取不良。在本研究中，低成本的二烯铁（Fc）作为钙钛矿/P3HT界面的中间层，导致P3HT结构中烷基侧链的疏水边上堆叠被噻吩环的亲水π -π堆叠取代，以减轻这种能量错配。在最佳Fc量下，在1000勒克斯的室内光照下，PCE平均为23.6%，而没有Fc的p3ht基PSCs为20.6%。此外，带有夹层的未封装器件在70% RH的黑暗条件下可以在12个月内保留80%的初始PCE (T80)，比没有Fc的T80的8个月更长。最后，蓝牙传感器模块由三个fc钝化p3ht的psc串联供电，以展示替代物联网（iot）电池的能力。

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来源期刊

ACS Photonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

11.90

自引率

5.70%

发文量

438

审稿时长

2.3 months

期刊介绍： Published as soon as accepted and summarized in monthly issues, ACS Photonics will publish Research Articles, Letters, Perspectives, and Reviews, to encompass the full scope of published research in this field.