当前位置：
X-MOL 学术
›
Nano Lett.
›
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.)
Fluorine Functionalized Graphene Nano Platelets for Highly Stable Inverted Perovskite Solar Cells
Nano Letters ( IF 9.6 ) Pub Date : 2017-09-14 00:00:00 , DOI: 10.1021/acs.nanolett.7b03225 Gi-Hwan Kim 1 , Hyungsu Jang 1 , Yung Jin Yoon 1 , Jaeki Jeong 1 , Song Yi Park 1 , Bright Walker 1 , In-Yup Jeon 2 , Yimhyun Jo 3 , Hyun Yoon 3 , Minjin Kim 3 , Jong-Beom Baek 1 , Dong Suk Kim 3 , Jin Young Kim 1
Nano Letters ( IF 9.6 ) Pub Date : 2017-09-14 00:00:00 , DOI: 10.1021/acs.nanolett.7b03225 Gi-Hwan Kim 1 , Hyungsu Jang 1 , Yung Jin Yoon 1 , Jaeki Jeong 1 , Song Yi Park 1 , Bright Walker 1 , In-Yup Jeon 2 , Yimhyun Jo 3 , Hyun Yoon 3 , Minjin Kim 3 , Jong-Beom Baek 1 , Dong Suk Kim 3 , Jin Young Kim 1
Affiliation
|
Edged-selectively fluorine (F) functionalized graphene nanoplatelets (EFGnPs-F) with a p–i–n structure of perovskite solar cells achieved 82% stability relative to initial performance over 30 days of air exposure without encapsulation. The enhanced stability stems from F-substitution on EFGnPs; fluorocarbons such as polytetrafluoroethylene are well-known for their superhydrophobic properties and being impervious to chemical degradation. These hydrophobic moieties tightly protect perovskite layers from air degradation. To directly compare the effect of similar hydrophilic graphene layers, edge-selectively hydrogen functionalized graphene nanoplatelet (EFGnPs-H) treated devices were tested under the same conditions. Like the pristine MAPbI3 perovskite devices, EFGnPs-H treated devices were completely degraded after 10 days. The hydrophobic properties of EFGnPs-F were characterized by contact angle measurement. The test results showed great water repellency compared to pristine perovskite films or EFGnPs-H coated films. This resulted in highly air-stable p–i–n perovskite solar cells.
中文翻译：
氟官能化石墨烯纳米血小板，用于高度稳定的钙钛矿反型太阳能电池。
钙钛矿型太阳能电池具有ap–i–n结构的边缘选择性氟（F）功能化石墨烯纳米片（EFGnPs-F）在30天内暴露于未封装的情况下相对于初始性能具有82％的稳定性。增强的稳定性源于EFGnPs的F取代。诸如聚四氟乙烯之类的碳氟化合物因其超疏水特性而闻名，并且不易发生化学降解。这些疏水部分紧密保护钙钛矿层免受空气降解。为了直接比较相似的亲水性石墨烯层的效果，在相同条件下测试了边缘选择性氢官能化石墨烯纳米片（EFGnPs-H）处理的设备。像原始的MAPbI 3钙钛矿设备，经EFGnPs-H处理的设备在10天后已完全降解。EFGnPs-F的疏水性通过接触角测量来表征。测试结果表明，与原始钙钛矿薄膜或EFGnPs-H涂层薄膜相比，该产品具有出色的拒水性。这产生了高度空气稳定的p–i–n钙钛矿太阳能电池。
更新日期：2017-09-15
中文翻译：
氟官能化石墨烯纳米血小板，用于高度稳定的钙钛矿反型太阳能电池。
钙钛矿型太阳能电池具有ap–i–n结构的边缘选择性氟（F）功能化石墨烯纳米片（EFGnPs-F）在30天内暴露于未封装的情况下相对于初始性能具有82％的稳定性。增强的稳定性源于EFGnPs的F取代。诸如聚四氟乙烯之类的碳氟化合物因其超疏水特性而闻名，并且不易发生化学降解。这些疏水部分紧密保护钙钛矿层免受空气降解。为了直接比较相似的亲水性石墨烯层的效果，在相同条件下测试了边缘选择性氢官能化石墨烯纳米片（EFGnPs-H）处理的设备。像原始的MAPbI 3钙钛矿设备，经EFGnPs-H处理的设备在10天后已完全降解。EFGnPs-F的疏水性通过接触角测量来表征。测试结果表明，与原始钙钛矿薄膜或EFGnPs-H涂层薄膜相比，该产品具有出色的拒水性。这产生了高度空气稳定的p–i–n钙钛矿太阳能电池。
京公网安备 11010802027423号