AI Article Synopsis
- - The efficiency of perovskite solar cells (PSCs) is largely influenced by the quality of their interface, especially the buried bottom surface of the perovskite film.
- - Using MoS quantum dots for passivation improves the crystallinity of perovskite films, leading to better light emission properties and longer lifetimes for emitted light.
- - The incorporation of MoS quantum dots not only aids in hole collection but also reduces electron leakage, resulting in a significant increase in power conversion efficiency from 17.87% to 19.95%.
Article Abstract
The interface of perovskite solar cells (PSCs) determines their power conversion efficiency (PCE). Here, the buried bottom surface of a perovskite film is efficiently passivated by using MoS quantum dots. The perovskite films prepared on top of MoS-assisted substrates show enhanced crystallinity, as evidenced by improved photoluminescence and a prolonged emission lifetime. MoS quantum dots with a large bandgap of 2.68 eV not only facilitate hole collection but also prevent the photogenerated electrons from flowing to the hole transport layer. Overall promotion leads to decreased trap density and an enhanced built-in electric field, thus increasing the device PCE from 17.87% to 19.95%.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9460046 | PMC |
| http://dx.doi.org/10.3390/nano12173079 | DOI Listing |
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