The hexagonal Boron Nitride (hBN) nanostructures with tuned physicochemical properties find huge applications in optoelectronic devices Herein, we have synthesized nanocomposite of hBN with graphene oxide (GO) in various ratios to acquire composition-dependent variation in their structural, surface electronic, linear, and non-linear optical properties. The insertion of GO in hBN nanosheets has modified their strain landscape, the electronic charge transfers from GO to hBN, increased the working time of free charge carriers, and suppressed electron-hole recombination, thus modifying its work function (WF). GO-hBN nanocomposites observed to have reduced bandgap where creation of defect induced mid-gap states lead to enhancement in non-linear absorption of two photons. Herein, we have established a linear relationship between Urbach energy (), a measure of disorders and non-linear absorption coefficient (). Additionally, we have observed that the tuned bandgap of the nanocomposites has significantly enhanced their performance as high-performance photocatalysts for the degradation of methyl orange, compared to bare hBN or GO. As a result, we discovered that , , WF and photodegradation activity of GO-hBN nanocomposites exhibit analogous variations in response to changes in the content of GO. Thus, by strategically prioritizing the modification of a single parameter while considering the potential effects on other relevant properties for application purpose, GO-hBN can effectively harness large spectrum areas for catalytic and optoelectronic applications.

中文翻译：

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具有可调非线性光学和表面电子特性的 GO-hBN 纳米复合材料中增强光催化响应的出现

具有调节物理化学性质的六方氮化硼（hBN）纳米结构在光电器件中具有巨大的应用在这里，我们合成了不同比例的六方氮化硼（hBN）与氧化石墨烯（GO）的纳米复合材料，以获得其结构、表面电子、线性、和非线性光学特性。在 hBN 纳米片中插入 GO 改变了它们的应变景观，电子电荷从 GO 转移到 hBN，增加了自由载流子的工作时间，并抑制了电子-空穴复合，从而改变了其功函数 (WF)。 GO-hBN 纳米复合材料观察到带隙减小，其中缺陷诱导的中带隙态的产生导致两个光子的非线性吸收增强。在此，我们建立了乌尔巴赫能量 (Urbach energy)（疾病测量）与非线性吸收系数 () 之间的线性关系。此外，我们还观察到，与裸六方氮化硼或氧化石墨烯相比，纳米复合材料的带隙可调，显着增强了其作为高性能光催化剂降解甲基橙的性能。结果，我们发现 GO-hBN 纳米复合材料的 、 、WF 和光降解活性随着 GO 含量的变化而表现出类似的变化。因此，通过战略性地优先考虑单个参数的修改，同时考虑对应用目的其他相关性能的潜在影响，GO-hBN 可以有效地利用大光谱区域进行催化和光电应用。