Thermodynamic Processes of Perovskite Photovoltaic Devices: Mechanisms, Simulation, and Manipulation

Tianshu Ma; Yidan An; Zhenhai YangZhenhai AiYuqi ZhangChanglei WangXiaofeng Li

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Thermodynamic Processes of Perovskite Photovoltaic Devices: Mechanisms, Simulation, and Manipulation

机译：Thermodynamic Processes of Perovskite Photovoltaic Devices: Mechanisms, Simulation, and Manipulation

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Perovskite-based single-junction and tandem solar cells have recentlyattracted considerable attention due to their remarkable advantages in powerconversion efficiency (PCE) and fabrication cost; however, their commercializationremains challenging. One crucial limiting factor is the incompetentthermal management, which is inclined to degrade the PCE and stabilityof the device. Here, a rigorous opto–electro–thermal (OET) simulation isperformed to disclose the internal energy conversion and heat mechanismswithin devices. Taking a low-bandgap PSC as an example, the microscopicenergy conversion processes concerning the contributions from thermalization,Joule, Peltier, and bulk/interface recombination heats are quantitativelyidentified. Then various thermal manipulation strategies are proposed,including external (cooling effect) and internal (transport layer materials, photoluminescencecolorants, and tandem strategy) methods with the purposes ofreducing the heat generation and device temperature. Through the joint OEToptimization, the predicted temperature of the considered single-junction(tandem) PSC is reduced to 44.3 ℃ (33.5 ℃) with the possible PCE up to22.35 (29.08). Based on the simulation, a tandem PSC (under two-terminalconfiguration) is fabricated and a PCE of 25.03 is realized. This studyoffers an effective approach for energy analysis and manipulation to realizehigher-performance PSCs with lower operation temperatures.

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来源
《Advanced functional materials》 |2023年第15期|2212596.1-2212596.11|共11页
作者
Tianshu Ma; Yidan An; Zhenhai YangZhenhai AiYuqi ZhangChanglei WangXiaofeng Li;
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作者单位

School of Optoelectronic Science and Engineering & CollaborativeInnovation Center of Suzhou Nano Science and TechnologyKey Lab of Advanced Optical Manufacturing Technologies of JiangsuProvince & Key Lab of Modern Optical Technologies of EducationMinistry;

Department of Materials Science and EngineeringCity University of Hong Kong83 Tat Chee Avenue, Kowloon, Hong Kong 999077, P. R. China;

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正文语种英语
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opto-electro-thermal simulations; perovskite solar cells; tandems; temperature effect; thermal manipulations;

Thermodynamic Processes of Perovskite Photovoltaic Devices: Mechanisms, Simulation, and Manipulation

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