2025年3月20日 · In this study, we present a borax-assisted ball-milling and sonication-assisted solvent exfoliation method to prepare SnSe QDs with lateral sizes on the scale of 5 nm from SnSe single crystals. The resulting SnSe QDs feature pristine surfaces, high crystallinity, and an impressive yield of 43.3%.

2025年2月14日 · The strategically engineered energy band structure of the Cu-doped QDs facilitates carrier transport with SnSe 2 /MoTe 2 to form back-to-back type-II and type-III band alignments.

2020年3月15日 · QDs have the advantage of multiple exciton generation (MEG), high absorption coefficient and tuneable bandgap, low cost and easy synthesis. The QDs act as analogues to dye molecules in QD sensitized solar cells (QDSSCs) when compared with traditional dye-sensitized solar cells (DSSCs).

2018年1月1日 · Herein, we propose a unique nanostructure by designing SnSe 2 quantum dots (QDs) (5±2 nm) embedded on rGO through a facile one-pot solvothermal synthesis with subsequent lyophilisation and thermal annealing.

这些原始 snse qd 形成的薄膜显示出宽带隙和强光致发光。此外，snse qds 薄膜被用作 n-i-p 钙钛矿太阳能电池 （psc） 中的电子转移层 （etl），实现了 21.33% 的光电转换效率 （pce），接近基于 sno2 的 psc 的 pce （22%），明显高于在没有 etl 的 psc 中观察到的 14.49% 的 pce。

As a proof-of-concept, SnSe/ZnSe QDs are used as light absorbers for PEC hydrogen production, leading to a saturated photocurrent density of 7 mA cm −2, which is comparable to best values reported for PEC devices based on toxic-metal-free QDs. Our results indicate that Zn-stabilized SnSe QDs have great potential for use in emerging ...

2024年7月23日 · The nonlinear optical (NLO) absorption of the ${{\rm SnSe}_2}$ QDs was systematically explored using a combination of open-aperture Z-scan and pump–probe technologies. The derived NLO parameters and ultrafast carrier dynamics of the QDs were comparable to those of reported low-dimensional materials.

2019年7月5日 · Here, we report cathodic exfoliation of a bulk SnSe crystal for a high-yield (>90%) synthesis of sub-5 nm scale SnSe quantum dots (QDs). As-exfoliated SnSe QDs demonstrate a superior performance as the anode material for LIBs.

2022年7月8日 · Herein, SnSe2 QDs have successfully been prepared by liquid-phase ultrasonic exfoliation of the group IV metal-sulfide compounds. The morphology and structure of the SnSe2 QDs were characterized by transmission electron microscopy (TEM) and high-resolution transmission microscopy (HR-TEM), and the composition of the materials was analyzed by X ...

二硒化锡(SnSe2)是TMDs家族中的一种半导 体，具有明显的三明治结构，其中Sn原子平面被夹在 Se原子平面中，具有类似于CdI 2 双锥六边形结构，其