High-Performance and Stable Perovskite Solar Cells Using Carbon Quantum Dots and Upconversion Nanoparticles

被引：11

作者：

Alkahtani, Masfer ^{[1
]}

Alenzi, Sultan M. ^{[2
]}

Alsolami, Abdulellah ^{[3
]}

Alsofyani, Najla ^{[1
]}

Alfahd, Anfal ^{[1
]}

Alzahrani, Yahya A. ^{[1
,3
]}

Aljuwayr, Abdulaziz ^{[1
]}

Abduljawad, Marwan ^{[3
]}

机构：

[1] King Abdulaziz City Sci & Technol KACST, Natl Ctr Renewable Energy, Riyadh 11442, Saudi Arabia

[2] King Abdulaziz City Sci & Technol KACST, Natl Ctr Nanotechnol & Semicond, Riyadh 11442, Saudi Arabia

[3] King Abdulaziz City Sci & Technol KACST, Mat Sci Res Inst MSRI, Natl Petrochem Technol Ctr NPTC, Riyadh 11442, Saudi Arabia

来源：

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES | 2022年 / 23卷 / 22期

关键词：

carbon quantum dots; upconversion nanoparticles; lithium; perovskite solar cells; TRIHALIDE; CRYSTAL; LENGTHS;

D O I：

10.3390/ijms232214441

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Upconversion nanoparticles (UCNPs) and carbon quantum dots (CQDs) have recently received a lot of attention as promising materials to improve the stability and efficiency of perovskite solar cells (PSCs). This is because they can passivate the surfaces of perovskite-sensitive materials and act as a spectrum converter for sunlight. In this study, we mixed and added both promising nanomaterials to PSC layers at the ideal mixing ratios. When compared to the pristine PSCs, the fabricated PSCs showed improved power conversion efficiency (PCE), from 16.57% to 20.44%, a higher photocurrent, and a superior fill factor (FF), which increased from 70% to 75%. Furthermore, the incorporation of CQDs into the manufactured PSCs shielded the perovskite layer from water contact, producing a device that was more stable than the original.

引用

页数：12

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