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首页> 外文期刊>RSC Advances >Influence of the rate of radiation energy on the charge-carrier kinetics application of all-inorganic CsPbBr3 perovskite nanocrystals
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Influence of the rate of radiation energy on the charge-carrier kinetics application of all-inorganic CsPbBr3 perovskite nanocrystals

机译：辐射能量对全无机CSPBBR3钙钛矿纳米晶体电荷载体动力学应用的影响

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摘要

In the field of optoelectronics, all-inorganic CsPbBr _(3) perovskite nanocrystals (PNCs) have gained significant interest on account of their superb processability and ultra-high stability among all the counterparts. In this study, we conducted an in-depth analysis of CsPbBr _(3) PNCs using joint transient optical spectroscopies (time-resolved photoluminescence and ultrafast transient absorption) in a very comprehensive manner. In order to understand the in-depth analysis of excited-state kinetics, the transient absorption spectroscopy has been performed. The structure of interest of CsPbBr _(3) PNCs was subjected to the rates of the radiation energy of 0.10 mW ( κ _(r) / κ _(nr) = ～0.62) and 0.30 mW ( κ _(r) / κ _(nr) = ～0.64). With the rate of radiation energy 0.30 mW, it was observed that there was a significant increase in hot carrier relaxation together with high radiative recombination, resulting in a decrease in charge trappings. Herein, we demonstrate that the tuning of the rate of radiation energies helps to understand the charge-carrier kinetics of CsPbBr _(3) PNCs, which would thus improve the manufacturing of efficient photovoltaic devices.
机译：在光电子学领域，全无机CSPBBR _（3）钙钛矿纳米晶体（PNC）由于其所有对应物之间的超级加工性和超高稳定性而获得了显着的兴趣。在该研究中，我们使用关节瞬态光谱（时间分辨的光致发光和超快瞬态吸收）对CSPBBR _（3）PNC进行了深入的分析，以非常综合的方式。为了理解激发状态动力学的深入分析，已经进行了瞬态吸收光谱。对CSPBBR _（3）PNC的感兴趣的结构进行了0.10mW（κ_（r）/κ_（nr）=〜0.62）和0.30mW（κ_（κ（κ）/κ的辐射能量的速率_（nr）=〜0.64）。随着辐射能量0.30mW的速率，观察到热载体弛豫的显着增加以及高辐射重组，导致充电陷阱降低。这里，我们证明了辐射能量的调整有助于了解CSPBBR _（3）PNC的电荷载体动力学，从而改善高效光伏器件的制造。

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