摘要
钙钛矿太阳能电池自2009年被提出以来取得了迅猛的进展,其性能甚至超越了其他类型电池多年的积累,在2013年被Science评为国际十大科技进展之一.截至目前,钙钛矿电池已经取得了转换效率为20.1%的佳绩,并在不久的未来有望继续迅速突破.本文主要总结了2014年至今钙钛矿电池研究所取得的部分最新进展,从钙钛矿太阳能电池的基本结构、工作机理、界面调控、制备工艺等方面出发,针对提高电池效率及稳定性、环境友好化等几个亟待改进的问题进行概述总结.本文在现有研究成果的基础上,对未来仍需努力的方向进行展望,有助于我国研究者迅速了解钙钛矿太阳能电池研究的最新动向并取得进一步突破.
As an important kind of clean and renewable energy source, solar cells are attracting more and more attention in recent years due to their great potential in addressing the energy crisis issues. In this context, developing novel solar cells with both high power conversion efficiency and low cost is becoming a hot research topic worldwide. In 2009, CH3NH3PbI3 and CH3NH3PbBr3 were firstly fabricated as quantum dot and used in dye-sensitized solar cell （DSSC） with a power conversion efficiency of 3.8%. Since then, many fascinating breakthroughs on perovskite-based solar cells have been achieved in an amazing speed, especially in recent 5 years. The overall performance of perovskite-based solar ceils has outperformed several other types of traditional solar ceils. Due to the importance of perovskite-based solar cells, the related research has been elected as one of the top 10 scientific breakthroughs in 2013 by Science magazine. So far, a high power conversion efficiency up to 20.1% has been reported by Korea Research Institute of Chemical Technology （KRICT）. The perovskite-based solar cells are with low cost and easy to be fabricated. Based on their excellent properties, such as good optical absorption and high charge transfer efficiency, breakthroughs on much higher power conversion efficiencies can be expected in the future. Here we summarize some state-of-the-art research advances on perovskite-based solar cells achieved from 2014 to now. We focus on the basics of perovskite-based solar cells, interface control, synthesis routes, etc. Current strategies for improving the power conversion efficiency, stability and eco-friendliness are summarized. Moreover, we propose the challenges that need to be overcome in the near future. Firstly, the working mechanism of those high efficiency solar cells is still an open question. Secondly, how to improve both the power conversion efficiency and the stability is still a big challenge. The perovskite-based solar cells are actually very sensitive to the ambient water va
出处
《科学通报》
EI
CAS
CSCD
北大核心
2016年第4期489-500,1-2,共12页
Chinese Science Bulletin
基金
国家重点基础研究发展计划(2015CB932500,2014CB932401)
国家自然科学基金(51372131,51372133)资助
关键词
钙钛矿太阳能电池
转换效率
稳定性
环境友好
perovskite solar cells, power conversion efficiency, stability, eco-friendly
