Details

Autor(en) / Beteiligte

• He, Yanjie
• Pang, Xinchang
• Jiang, Beibei
• Feng, Chaowei
• Harn, Yeu‐Wei
• Chen, Yihuang
• Yoon, Young Jun
• Pan, Shuang
• Lu, Cheng‐Hsin
• Chang, Yajing
• Zebarjadi, Mona
• Kang, Zhitao
• Thadhani, Naresh
• Peng, Juan
• Lin, Zhiqun

Titel

Unconventional Route to Uniform Hollow Semiconducting Nanoparticles with Tailorable Dimensions, Compositions, Surface Chemistry, and Near‐Infrared Absorption

Ist Teil von

• Angewandte Chemie International Edition, 2017-10, Vol.56 (42), p.12946-12951

Auflage

International ed. in English

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Despite impressive recent advances in the synthesis of lead chalcogenide solid nanoparticles, there are no examples of lead chalcogenide hollow nanoparticles (HNPs) with controlled diameter and shell thickness as current synthetic approaches for HNPs have inherent limitations associated with their complexity, inability to precisely control the dimensions, and limited possibilities with regard to applicable materials. Herein, we report on an unconventional strategy for crafting uniform lead chalcogenide (PbS and PbTe) HNPs with tailorable size, surface chemistry, and near‐IR absorption. Amphiphilic star‐like triblock copolymers [polystyrene‐block‐poly(acrylic acid)‐block‐polystyrene and polystyrene‐block‐poly(acrylic acid)‐block‐poly(3,4‐ethylenedioxythiophene)] were rationally synthesized and exploited as nanoreactors for the formation of uniform PbS and PbTe HNPs. Compared to their solid counterparts, the near‐IR absorption of the HNPs is blue‐shifted owing to the hollow interior. This strategy can be readily extended to other types of intriguing low‐band‐gap HNPs for diverse applications. An unconventional strategy for the synthesis of uniform PbS and PbTe hollow nanoparticles with tailorable sizes, surface chemistry, and near‐IR absorption is based on the use of the amphiphilic star‐like triblock copolymers polystyrene‐block‐poly(acrylic acid)‐block‐polystyrene (PS‐b‐PAA‐b‐PS) and polystyrene‐block‐poly(acrylic acid)‐block‐poly(3,4‐ethylenedioxythiophene) (PS‐b‐PAA‐b‐PEDOT) as nanoreactors.