当前位置：
X-MOL 学术
›
Adv. Energy Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
High Open-Circuit Voltage (1.197 V) in Large-Area (1 cm2) Inverted Perovskite Solar Cell via Interface Planarization and Highly Polar Self-Assembled Monolayer
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2024-01-02 , DOI: 10.1002/aenm.202303941 Anxin Sun 1 , Congcong Tian 1 , Rongshan Zhuang 1, 2 , Chen Chen 3 , Yiting Zheng 1 , Xueyun Wu 1 , Chen Tang 1 , Yuan Liu 1 , Zihao Li 1 , Beilin Ouyang 1 , Jiajun Du 1 , Ziyi Li 1 , Jingyu Cai 1 , Jinling Chen 1 , Xiling Wu 1 , Yong Hua 2 , Chun‐Chao Chen 1
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2024-01-02 , DOI: 10.1002/aenm.202303941 Anxin Sun 1 , Congcong Tian 1 , Rongshan Zhuang 1, 2 , Chen Chen 3 , Yiting Zheng 1 , Xueyun Wu 1 , Chen Tang 1 , Yuan Liu 1 , Zihao Li 1 , Beilin Ouyang 1 , Jiajun Du 1 , Ziyi Li 1 , Jingyu Cai 1 , Jinling Chen 1 , Xiling Wu 1 , Yong Hua 2 , Chun‐Chao Chen 1
Affiliation
|
The efficiency loss caused by area scaling is one of the key factors hindering the industrial development of perovskite solar cells. The energy loss and contact issues in the buried interface are the main reasons. Here, a new self-assembled monolayer (SAM), Ph-4PACz, with a large dipole moment (2.32 D) is obtained . It is found that Ph-4PACz with high polarity can improve the band alignment and minimize the energy loss , resulting in an open-circuit voltage (Voc) as high as 1.2 V for 1.55 eV perovskite. However, when applied to large-area devices, the fill factor (FF) still suffered from significant attenuation. Therefore, alumina nanoparticles (Al2O3-NPs) are introduced to the interface between Ph-4PACz and rough FTO substrate to further improve the flatness , resulting in a conformal perovskite film with almost no voids in the buried interface, thus promoting low exciton binding energy, fast hot-carrier extraction and low non-radiative recombination. The final devices achieved a small-area power conversion efficiency (PCE) of 25.60% and a large-area (1 cm2) PCE of 24.61% (certified at 24.48%), which represents one of the highest PCE for single device ≥ 1 cm2 area. Additionally, mini-modules and stability testing are also carried out to demonstrate the feasibility of commercialization.
中文翻译：
通过界面平坦化和高极性自组装单层在大面积 (1 cm2) 倒置钙钛矿太阳能电池中实现高开路电压 (1.197 V)
面积缩放引起的效率损失是阻碍钙钛矿太阳能电池产业发展的关键因素之一。埋入界面的能量损失和接触问题是主要原因。在这里，获得了具有大偶极矩（2.32 D）的新型自组装单层（SAM）Ph-4PACz。研究发现，具有高极性的Ph-4PACz可以改善能带排列并最大限度地减少能量损失，从而使1.55 eV钙钛矿的开路电压（V oc）高达1.2 V。然而，当应用于大面积器件时，填充因子（FF）仍然出现明显衰减。因此，将氧化铝纳米颗粒（Al 2 O 3 -NPs）引入到Ph-4PACz和粗糙FTO基底之间的界面以进一步提高平坦度，形成埋入界面几乎没有空隙的共形钙钛矿薄膜，从而促进低激子结合能、快速热载流子提取和低非辐射复合。最终器件实现了25.60%的小面积功率转换效率（PCE）和24.61%的大面积（1 cm 2）PCE（认证为24.48%），这是单器件≥1的最高PCE之一厘米2面积。此外，还进行了迷你模块和稳定性测试，以证明商业化的可行性。
更新日期：2024-01-02
中文翻译：
通过界面平坦化和高极性自组装单层在大面积 (1 cm2) 倒置钙钛矿太阳能电池中实现高开路电压 (1.197 V)
面积缩放引起的效率损失是阻碍钙钛矿太阳能电池产业发展的关键因素之一。埋入界面的能量损失和接触问题是主要原因。在这里，获得了具有大偶极矩（2.32 D）的新型自组装单层（SAM）Ph-4PACz。研究发现，具有高极性的Ph-4PACz可以改善能带排列并最大限度地减少能量损失，从而使1.55 eV钙钛矿的开路电压（V oc）高达1.2 V。然而，当应用于大面积器件时，填充因子（FF）仍然出现明显衰减。因此，将氧化铝纳米颗粒（Al 2 O 3 -NPs）引入到Ph-4PACz和粗糙FTO基底之间的界面以进一步提高平坦度，形成埋入界面几乎没有空隙的共形钙钛矿薄膜，从而促进低激子结合能、快速热载流子提取和低非辐射复合。最终器件实现了25.60%的小面积功率转换效率（PCE）和24.61%的大面积（1 cm 2）PCE（认证为24.48%），这是单器件≥1的最高PCE之一厘米2面积。此外，还进行了迷你模块和稳定性测试，以证明商业化的可行性。
京公网安备 11010802027423号