Alanazi Tarek I, Alanazi Abdulaziz, Touti Ezzeddine, Agwa Ahmed M, Kraiem Habib, Alanazi Mohana, Alanazi Abdulrahman M, El Sabbagh Mona
Department of Physics, College of Science, Northern Border University, Arar 73222, Saudi Arabia.
Department of Electrical Engineering, College of Engineering, Northern Border University, Arar 73222, Saudi Arabia.
Polymers (Basel). 2023 Jun 5;15(11):2578. doi: 10.3390/polym15112578.
The low bandgap antimony selenide (SbSe) and wide bandgap organic solar cell (OSC) can be considered suitable bottom and top subcells for use in tandem solar cells. Some properties of these complementary candidates are their non-toxicity and cost-affordability. In this current simulation study, a two-terminal organic/SbSe thin-film tandem is proposed and designed through TCAD device simulations. To validate the device simulator platform, two solar cells were selected for tandem design, and their experimental data were chosen for calibrating the models and parameters utilized in the simulations. The initial OSC has an active blend layer, whose optical bandgap is 1.72 eV, while the initial SbSe cell has a bandgap energy of 1.23 eV. The structures of the initial standalone top and bottom cells are ITO/PEDOT:PSS/DR3TSBDT:PCBM/PFN/Al, and FTO/CdS/SbSe/Spiro-OMeTAD/Au, while the recorded efficiencies of these individual cells are about 9.45% and 7.89%, respectively. The selected OSC employs polymer-based carrier transport layers, specifically PEDOT:PSS, an inherently conductive polymer, as an HTL, and PFN, a semiconducting polymer, as an ETL. The simulation is performed on the connected initial cells for two cases. The first case is for inverted (p-i-n)/(p-i-n) cells and the second is for the conventional (n-i-p)/(n-i-p) configuration. Both tandems are investigated in terms of the most important layer materials and parameters. After designing the current matching condition, the tandem PCEs are boosted to 21.52% and 19.14% for the inverted and conventional tandem cells, respectively. All TCAD device simulations are made by employing the Atlas device simulator given an illumination of AM1.5G (100 mW/cm). This present study can offer design principles and valuable suggestions for eco-friendly solar cells made entirely of thin films, which can achieve flexibility for prospective use in wearable electronics.
低带隙硒化锑（SbSe）和宽带隙有机太阳能电池（OSC）可被视为适用于串联太阳能电池的底部和顶部子电池。这些互补候选材料的一些特性是它们的无毒和成本可承受性。在当前的模拟研究中，通过TCAD器件模拟提出并设计了一种两端有机/SbSe薄膜串联结构。为了验证器件模拟器平台，选择了两个太阳能电池进行串联设计，并选择它们的实验数据来校准模拟中使用的模型和参数。初始的OSC有一个活性共混层，其光学带隙为1.72 eV，而初始的SbSe电池的带隙能量为1.23 eV。初始独立顶部和底部电池的结构分别为ITO/PEDOT:PSS/DR3TSBDT:PCBM/PFN/Al和FTO/CdS/SbSe/Spiro-OMeTAD/Au，而这些单个电池记录的效率分别约为9.45%和7.89%。所选的OSC采用基于聚合物的载流子传输层，具体而言，固有导电聚合物PEDOT:PSS作为空穴传输层，半导体聚合物PFN作为电子传输层。针对两种情况对连接的初始电池进行模拟。第一种情况是用于倒置的（p-i-n）/（p-i-n）电池，第二种情况是用于传统的（n-i-p）/（n-i-p）配置。对两种串联结构都从最重要的层材料和参数方面进行了研究。在设计了电流匹配条件后，倒置和传统串联电池的串联功率转换效率（PCE）分别提高到21.52%和19.14%。所有TCAD器件模拟均使用Atlas器件模拟器在AM1.5G（100 mW/cm）光照条件下进行。本研究可为完全由薄膜制成的环保太阳能电池提供设计原则和有价值的建议，这类电池可为可穿戴电子产品的未来应用实现灵活性。
