配位离子与纳米颗粒的反应:表/界面、组分的精确调控及应用
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- 英文论文题名：Inorganic metal/semiconductor hetero-nanostructure synthetic chemistry and optoelectronic properties research
- 论文作者：张加涛 ; 刘佳佳 ; 徐萌 ; 刘佳
- 英文论文作者：Jiatao Zhang ; Jiajia Liu ; Meng Xu ; Jia Liu ; Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications ; School of Materials Science and Engineering ; Beijing Institute of Technology
- 年：2016
- 作者机构：北京理工大学材料学院结构可控先进功能材料与绿色应用北京市重点实验室;
- 论文关键词：离子交换反应 ; 异质结构 ; 金属/半导体 ; 调控合成 ; 光电性能
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十六分会：纳米材料合成与组装
- 语种：中文
- 分类号：O641.4;TB383.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十六分会 ; 纳米材料合成与组装
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：174k
- 原文格式：D
- 会议级别：全国
摘要
如何实现半导体结构单元在不同形貌金属纳米晶上的单晶性、掺杂引起的能带调控,以及尺寸、形貌、组分、异质界面接触、间隔的精准调控,是实现其光化学能转换和光电转换的关键。我们利用配位离子与纳米颗粒的反应:i)提出了不同膦配体配位的阳离子交换反应制备金属/半导体核壳结构及掺杂半导体结构的新方法;ii)实现了多种金属/单晶半导体核壳纳米晶的形貌、组分、异质界面的协同调控,探索了其光化学能转换应用;iii)发展了半导体纳米晶中异价取代掺杂及表/界面调控新方法,实现了p-/n-型电子掺杂态和掺杂发光的调控,探索了其光电转换应用。
To achieve flexible coupling between Plasmon and excition and then enhance optoelectronic applications, the synergistic tailoring of shape, size, composition, crystallization, hetero-interface and the distance between two nanoscopic components comparable to the characteristic length of plasmon/exciton interactions are key materials issues. By controlling ions exchange reactions between molecular complexes and colloidal nanostructures, we showed that: i) proposed the new synthesis method, namely different kinds of phosphine initialized cation exchange reactions, to precisely synthesize metal/semiconductor hetero-nanostructures and doped semiconductor nanostructures; ii) realized synergistic tailoring on morphologies, compositions and hetero-interfaces of many kinds of metal@monocrystalline semiconductor core/shell nanocrystals and the exploration of their photochemical energy conversion applications; iii) developed the new cation exchange strategy to realize the successive control of substitutional heterovalent doping, surface/interface control, doped luminescence and p-/n-type electronic impurities in semiconductor nanostructures, and explored their photoelectric conversion applications.
To achieve flexible coupling between Plasmon and excition and then enhance optoelectronic applications, the synergistic tailoring of shape, size, composition, crystallization, hetero-interface and the distance between two nanoscopic components comparable to the characteristic length of plasmon/exciton interactions are key materials issues. By controlling ions exchange reactions between molecular complexes and colloidal nanostructures, we showed that: i) proposed the new synthesis method, namely different kinds of phosphine initialized cation exchange reactions, to precisely synthesize metal/semiconductor hetero-nanostructures and doped semiconductor nanostructures; ii) realized synergistic tailoring on morphologies, compositions and hetero-interfaces of many kinds of metal@monocrystalline semiconductor core/shell nanocrystals and the exploration of their photochemical energy conversion applications; iii) developed the new cation exchange strategy to realize the successive control of substitutional heterovalent doping, surface/interface control, doped luminescence and p-/n-type electronic impurities in semiconductor nanostructures, and explored their photoelectric conversion applications.
引文
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