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| 1 | 量子点敏化太阳电池显示文摘基于量子限域效应的新型太阳电池——量子点敏化太阳电池(QD-SSCs),由于其最大理论转化效率超过了传统的Shockley-Queisser极限效率,已经成为目前最具研究潜力的太阳电池之一。本文综述了近几年来QD-SSCs领域的研究进展,主要从半导体氧化物纳米材料,特别是其低维纳米结构下的特殊性能;金属硫族化合物纳米晶;电解质;对电极等几个方面评述了电池材料的研究进展。另外,从量子点材料的制备和组装方面简述了目前电池光阳极的研究情况,并介绍了提高量子点光敏化性能的几个新途径。最后,从开路电压和短路电流角度分析了影响电池性能的几个关键因素,并对QD-SSCs今后的发展进行了展望。 | 刘锋 朱俊 魏俊峰 李毅 胡林华 戴松元 | 2013 | 化学进展2013，25，2： | 6 |
| 2 | The precursor compound of two types of ZnSe magic-sized clusters显示文摘Precursor compounds(PCs)link quantum dots(QDs)and magic-sized clusters(MSCs),which is pivotal in the conversion between QDs and MSCs.Here,for the first time,we report the transformation,synthesis,and composition of a type of ZnSe PCs.ZnSe PCs can be directly transformed to two different MSCs with the assistance of octylamine and acetic acid at room temperature.The two types of MSCs exhibit sharp absorption peaks at 299 and 328 nm which are denoted as MSC-299 and MSC-328.In the preparation of ZnSe PCs,diphenylphosphine(DPP)as an additive plays a key role which not only inhibits the thermal decomposition of Zn precursor,but also acts as a reducing agent to reduce the by-products produced in the reaction.The composition was explored by X-ray photoelectron spectroscopy,energy dispersive spectrometer,matrix-assisted laser desorption/ionization time-of-flight mass spectra with ZnSe PC powder appeared as white powder after purifying by toluene(Tol)and methanol(MeOH).The results indicate that the molar ratio of Zn/Se is 2:1 with a molecular of〜3,350 Da.Therefore,we propose that the molecular formula of ZnSe PCs is Zn_(32)Se_(16).In addition,at the molecular level,the covalent bond of Zn-Se is formed in ZnSe PCs.This study offers a deeper understanding of the transformation from PCs to MSCs and for the first time proposes the composition of PCs.Meanwhile,this research provides us with a new understanding of the role of DPP in the synthesis of colloidal semiconductor nanoparticles. | Xingxia Yang Meng Zhang Qiu Shen Yang Li Chaoran Luan Kui Yu | 2022 | Nano Research2022，15，1： | 0 |
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