Chalcopyrite-type CuInS2 NCs was synthesized by the hot-soap method. Mixed solutions, CuI and InCl3 dissolved in the mixture of the tri-octylphosphite and 1-octadecene and the sulfur dissolved in tri-phenylphosphite, ...Chalcopyrite-type CuInS2 NCs was synthesized by the hot-soap method. Mixed solutions, CuI and InCl3 dissolved in the mixture of the tri-octylphosphite and 1-octadecene and the sulfur dissolved in tri-phenylphosphite, were used as source solutions; the hexadecylamine was additionally mixed as a surfactant before the reaction. It was observed that the product CuInS2 NCs structurally transformed from the chalcopyrite(CP)-or zincblende(ZB)-to the wurtzite(WZ)-type depending on the amount of the surfactant and a storage time after the surfactant addition. Very weak photoluminescence in the near-infrared region was observed for the CP-or ZB-type NCs. This band was attributable to the electronhole recombination via defect levels. No photoluminescence was detected for the wurtzite-type NCs.展开更多
在各种唯美主义的摄影家眼里,玛丽安(Mary Ann O' Donnell)的摄影几乎算不上什么"作品",它只是一些经过电脑合成的日常事物的杂乱意象的拼贴,无法用经典摄影所要遵循的空间场景、主次关系、光影追踪、构图法则等进行解读。但你分...在各种唯美主义的摄影家眼里,玛丽安(Mary Ann O' Donnell)的摄影几乎算不上什么"作品",它只是一些经过电脑合成的日常事物的杂乱意象的拼贴,无法用经典摄影所要遵循的空间场景、主次关系、光影追踪、构图法则等进行解读。但你分明可以感受到她那种不同寻常的“导样”的目光,将城市中我们所不小心忽略的东西重新放在了一个特定的画面当中进行审视。展开更多
Have you heard Mide? Coule be.Mike is a professional reader,and he's everywhere these days. On MapQuest, the Web-based map service,he'll read aloud whatever directions you ask for. If you like to have AOL or Y...Have you heard Mide? Coule be.Mike is a professional reader,and he's everywhere these days. On MapQuest, the Web-based map service,he'll read aloud whatever directions you ask for. If you like to have AOL or Yahoo! e-mail read aloud to you over the phone, that's Mike's voice you 're hearing.展开更多
文摘Chalcopyrite-type CuInS2 NCs was synthesized by the hot-soap method. Mixed solutions, CuI and InCl3 dissolved in the mixture of the tri-octylphosphite and 1-octadecene and the sulfur dissolved in tri-phenylphosphite, were used as source solutions; the hexadecylamine was additionally mixed as a surfactant before the reaction. It was observed that the product CuInS2 NCs structurally transformed from the chalcopyrite(CP)-or zincblende(ZB)-to the wurtzite(WZ)-type depending on the amount of the surfactant and a storage time after the surfactant addition. Very weak photoluminescence in the near-infrared region was observed for the CP-or ZB-type NCs. This band was attributable to the electronhole recombination via defect levels. No photoluminescence was detected for the wurtzite-type NCs.
文摘在各种唯美主义的摄影家眼里,玛丽安(Mary Ann O' Donnell)的摄影几乎算不上什么"作品",它只是一些经过电脑合成的日常事物的杂乱意象的拼贴,无法用经典摄影所要遵循的空间场景、主次关系、光影追踪、构图法则等进行解读。但你分明可以感受到她那种不同寻常的“导样”的目光,将城市中我们所不小心忽略的东西重新放在了一个特定的画面当中进行审视。
文摘Have you heard Mide? Coule be.Mike is a professional reader,and he's everywhere these days. On MapQuest, the Web-based map service,he'll read aloud whatever directions you ask for. If you like to have AOL or Yahoo! e-mail read aloud to you over the phone, that's Mike's voice you 're hearing.