钙钛矿太阳能电池界面工程优化研究
Optimization of Interfacial Engineering of Perovskite Solar Cells
摘要
Abstract
Hybrid organic-inorganic perovskite solar cells(PSCs)have attracted global attention as one of the most promising photovoltaic materials due to their high efficiency,low energy consumption and low cost.However,non-radiative recombination caused by interface defects severely inhibits the performance of PSCs.To solve this critical issue,the particle size of nickel oxide(NiOx)hole transport layer was reduced to improve the particle size uniformity and achieve efficient hole transport.Furthermore,the antisolvent acting time of the perovskite film was optimized to reduce the interfacial non-radiative recombination and interfacial defect.As a result,the crystalline quality is improved and power conversion efficiency(PCE)of the perovskite solar cells increase from 10.11%to 18.37%.Kelvin probe atomic force microscopy(KPFM)study shows that the contact potential difference(CPD)of the optimized perovskite film in the illumination condition increases by 120.39 mV compared with that under the dark condition.Analysis by piezoelectric atomic force microscopy(PFM)reveals that the ferroelectric polarization of the optimized interfacial perovskite films hardly changes from illumination to dark states,indicating that reducing interfacial defects can decrease the hysteresis effect of the PSCs.It is concluded that optimizing the NiOx hole transport layer and improving the quality of perovskite film can reduce the interface defects,the non-radiative recombination and the hysteresis effect,and improve PCE of perovskite solar cells.关键词
钙钛矿太阳能电池/原子力显微镜/接触电位差/铁电极化Key words
perovskite solar cell/atomic force microscopy/contact potential difference/ferroelectric polarization分类
化学化工引用本文复制引用
王烨,侯登录,赵晋津,焦忆楠,郭军霞,刘欢,李睿,尚子璇,张士东,王永浩,耿海川..钙钛矿太阳能电池界面工程优化研究[J].无机材料学报,2023,38(11):1323-1330,中插11,9.基金项目
国家自然科学基金(U2130128,11772207) （U2130128,11772207）
中央引导地方科技发展资金(216Z4302G) （216Z4302G）
河北省市场监管局科技计划(2023ZC03) （2023ZC03）
河北省创新能力提升计划(22567604H) （22567604H）
京津冀基础研究合作专项(H2022205047,22JCZXJC00060,E3B33911DF) （H2022205047,22JCZXJC00060,E3B33911DF）
河北师范大学博士科研启动基金(L2023B18) （L2023B18）
石家庄铁道大学研究生创新资助项目(YC2022068)National Natural Science Foundation of China(U2130128,11772207) （YC2022068）
The Central Government Guiding Local Science and Technology Development Project(216Z4302G) （216Z4302G）
The Hebei Administration for Market Supervision Science and Technology Project List(2023ZC03) （2023ZC03）
The Innovation Capability Improvement Plan Project of Hebei Province(22567604H) （22567604H）
The Basic Research Cooperation Special Foundation of Beijing-Tianjin-Hebei Region(H2022205047,22JCZXJC00060,E3B33911DF) （H2022205047,22JCZXJC00060,E3B33911DF）
Ph.D Scientific Research Start-up Fund of Hebei Normal University(L2023B18) （L2023B18）
Postgraduate Innovation Funding Project of Shijiazhuang Tiedao University(YC2022068) （YC2022068）
