CN105839187B - 一种有机-无机杂化半导体晶体材料及其合成方法与应用 - Google Patents
一种有机-无机杂化半导体晶体材料及其合成方法与应用 Download PDFInfo
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Abstract
本发明公开了一种有机‑无机杂化半导体晶体材料及其合成方法与应用,该半导体晶体材料为[Pb3I10Cu2(phen)4]n,是通过温和水热制得。该半导体晶体材料在340nm的紫外光照射下,产生波长近410nm的荧光,实际上是将紫外光转化为可见光,故可广泛地应用于光能转换,可用于制作荧光发光器件。该半导体晶体材料可用于太阳能电池和光电开关。而且该半导体晶体材料具有磁铁性,研究它的合成可以有助于磁自旋器件的设计。
Description
技术领域
本发明涉及半导体材料领域,具体涉及一种有机-无机杂化半导体晶体材料及其合成方法与应用。
背景技术
有机-无机杂化半导体晶体材料具有独特的拓扑结构和性质,以及潜在的应用价值,可作为功能材料应用到光、电、磁等领域,因此受到了人们的广泛关注并且得到突飞猛进的发展。
基于Pb/I骨架的有机-无机杂化半导体晶体材料具有丰富的光电性能,如光致发光、电致发光、光致变色、热致变色、非线性光学性质等,可应用于太阳能电池、光电开关等领域。由于材料的性质与结构存在必然的联系,所以材料及化学学家通过选择适当的合成方法和有机配体,合成出大量的具有0D、1D、2D、3D该类半导体材料。
在Pb/I骨架引入第二金属离子,除了形成新颖的结构,还将改变Pb/I骨架的电子结构,这将势必影响材料的光电性能。而如果第二金属离子是磁性离子,将可获得磁性Pb/I半导体材料,拓宽它的应用范围,而关于这方面的报道非常少。本专利正是涉及通过简易的水热法成功引入磁性金属离子Cu2+到Pb/I骨架而形成的一种有机-无机杂化半导体晶体材料。
发明内容
本发明的目的在于提供一种易于制备,配体原料便宜,产率高的有机-无机杂化半导体晶体材料。
为了实现上述目的,本发明采用如下技术方案:
一种有机-无机杂化半导体晶体材料,该半导体晶体材料的化学式为[Pb3I10Cu2(phen)4]n,空间群为P21/n,晶胞参数为 β=112.263(5)°,单胞体积
一种有机-无机杂化半导体晶体材料的合成方法,室温下,将PbI2,KI,CuI,邻菲罗啉和水,搅拌混合均匀,密封加热到120-200℃,保温12-72h,再冷却到室温,得到的沉淀用水洗涤多次后,得到所述的半导体晶体材料。
本发明一种有机-无机杂化半导体晶体材料用于制作荧光发光器件的用途。
本发明一种有机-无机杂化半导体晶体材料用于太阳能电池的用途。
本发明一种有机-无机杂化半导体晶体材料用于光电开关的用途。
采用上述方案后,与现有技术相比,本发明的优点和积极效果为:本发明的半导体晶体材料易于制备,配体原料便宜,产率高。
通过X射线单晶衍射实验得到本发明的半导体晶体材料的单晶结构,同时证明了此半导体晶体材料为高度结晶的晶体材料。应用红外吸收光谱证明了结构中存在的邻菲罗啉。通过热重分析证明该材料可在温度30-250℃范围内保持稳定,具有较宽温度范围应用的价值。该半导体晶体材料在340nm的紫外光照射下,产生波长近410nm的荧光。另外还具有磁铁性。
附图说明
图1为本发明中[Pb3I10Cu2(phen)4]n的结构图。
具体实施方式
一种有机-无机杂化半导体晶体材料,如图1所示,该半导体晶体材料的化学式为[Pb3I10Cu2(phen)4]n,空间群为P21/n,晶胞参数为 β=112.263(5)°,单胞体积
本发明一种有机-无机杂化半导体晶体材料可用于制作荧光发光器件、太阳能电池和光电开关。
实施例1:
一种有机-无机杂化半导体晶体材料的合成方法:室温下,将46mg PbI2,17mg KI,19mg CuI,18mg邻菲罗啉和16mL水加入到20mL的高压釜中,并搅拌混合均匀。将该混合溶液加热到180℃,并保温36h,然后以3℃/h冷却到室温。得到的沉淀用水洗涤多次后,得到灰黄色块状晶体。根据使用的PbI2计算得到其产率为55.2%。
实施例2:
一种有机-无机杂化半导体晶体材料的合成方法:室温下,将46mg PbI2,33mg KI,19mg CuI,18mg邻菲罗啉和16mL水加入到20mL的高压釜中,并搅拌混合均匀。将该混合溶液加热到160℃,并保温36h,然后以2℃/h冷却到室温。得到的沉淀用水洗涤多次后,得到灰黄色块状晶体。根据使用的PbI2计算得到其产率为48.3%。
实施例3:
一种有机-无机杂化半导体晶体材料的合成方法:室温下,将46mg PbI2,33mg KI,38mg CuI,54mg邻菲罗啉和14mL水加入到20mL的高压釜中,并搅拌混合均匀。将该混合溶液加热到120℃,并保温72h,然后以2℃/h冷却到室温。得到的沉淀用水洗涤多次后,得到灰黄色块状晶体。根据使用的PbI2计算得到其产率为47.6%。
实施例4:
一种有机-无机杂化半导体晶体材料的合成方法:室温下,将46mg PbI2,50mg KI,57mg CuI,18mg邻菲罗啉和14mL水加入到20mL的高压釜中,并搅拌混合均匀。将该混合溶液加热到200℃,并保温12h,然后以3℃/h冷却到室温。得到的沉淀用水洗涤多次后,得到灰黄色块状晶体。根据使用的PbI2计算得到其产率为54.8%。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为本发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以作出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (5)
1.一种有机-无机杂化半导体晶体材料,其特征在于:该半导体晶体材料的化学式为[Pb3I10Cu2(phen)4]n,空间群为P21/n,晶胞参数为 β=112.263(5)°,单胞体积
2.如权利要求1所述的一种有机-无机杂化半导体晶体材料的合成方法,其特征在于:室温下,将PbI2,KI,CuI,邻菲罗啉和水,搅拌混合均匀,密封加热到120-200℃,保温12-72h,再冷却到室温,得到的沉淀用水洗涤多次后,得到所述的半导体晶体材料。
3.如权利要求1所述的一种有机-无机杂化半导体晶体材料用于制作荧光发光器件的用途。
4.如权利要求1所述的一种有机-无机杂化半导体晶体材料用于太阳能电池的用途。
5.如权利要求1所述的一种有机-无机杂化半导体晶体材料用于光电开关的用途。
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