Hysteresis Effects in Photovoltaic Devices Based on a Two-Dimensional Molecular Ferroelectric

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2024-09-26 DOI:10.1021/acsaelm.4c0129510.1021/acsaelm.4c01295

Qifu Yao, Qishuo Li, Shaojie Jiang, Jianping Yang, Weiwei Mao* and Xing’ao Li*,

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Abstract

Narrow bandgap two-dimensional molecular ferroelectric materials have enormous potential in the field of optoelectronics, but excellent species are still scarce. (4-Iodobutylammonium)₂(methylammonium)₂Pb₃I₁₀ (IBMPI) has been demonstrated to be a low-bandgap two-dimensional biaxial mixed perovskite molecular ferroelectric. In this work, we used IBMPI as the light-absorbing layer to fabricate p-i-n structured photovoltaic devices. Under the irradiation of AM 1.5 G, the IBMPI-based solar devices exhibit significant photovoltaic effects (V_OC ≈ 0.78 V, J_SC ≈ 5.07 mA/cm²). In addition, by adjustment of the bias history, the intrinsic ferroelectric polarization and ion migration in IBMPI can also be used to adjust photovoltaic performance, especially the open-circuit voltage and fill factor. This work indicates that this two-dimensional molecular ferroelectric is a potential candidate material for preparing tunable photovoltaic devices.

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基于二维分子铁电体的光伏设备中的磁滞效应

窄带隙二维分子铁电材料在光电领域具有巨大的潜力，但优秀的品种仍然稀缺。(4-Iodobutylammonium)2(methylammonium)2Pb3I10 (IBMPI) 已被证明是一种低带隙二维双轴混合包晶分子铁电体。在这项研究中，我们利用 IBMPI 作为光吸收层，制作了 pi-n 结构的光伏器件。在 AM 1.5 G 的辐照下，基于 IBMPI 的太阳能器件表现出显著的光伏效应（VOC ≈ 0.78 V，JSC ≈ 5.07 mA/cm2）。此外，通过调整偏置历史，IBMPI 中的固有铁电极化和离子迁移也可用于调整光伏性能，尤其是开路电压和填充因子。这项工作表明，这种二维分子铁电体是制备可调光伏器件的潜在候选材料。

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.