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Cooperativity at the organic/inorganic interface 有机/无机界面的协同性
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00078-9
Lingang Zhang, Junfu Liu, Zhiyu Pan, Zuhong Lu
{"title":"Cooperativity at the organic/inorganic interface","authors":"Lingang Zhang,&nbsp;Junfu Liu,&nbsp;Zhiyu Pan,&nbsp;Zuhong Lu","doi":"10.1016/S0968-5677(98)00078-9","DOIUrl":"10.1016/S0968-5677(98)00078-9","url":null,"abstract":"<div><p>Cooperativity at the organic/inorganic interface is investigated at the Langmuir monolayer/nanoparticles interface with transmission electron microscopy and Brewster angle microscopy. Mineralization-induced collapse of the Langmuir monolayer is, for the first time, reported and factors that influence the cooperativity at the organic/inorganic interface are suggested. This study may provide an insight into the biomineralization and the fabrication of biomimetic materials.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 577-581"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00078-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76778780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
The mixing interaction and energy transfer between the conduction band of SrS and the levels of Ce3+∗ SrS导电带与Ce3+ *能级之间的混合相互作用和能量传递
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00052-2
Chunxiang Xu , Lu Zhuhong , Zheng Xu , Xurong Xu , Zhidong Lou
{"title":"The mixing interaction and energy transfer between the conduction band of SrS and the levels of Ce3+∗","authors":"Chunxiang Xu ,&nbsp;Lu Zhuhong ,&nbsp;Zheng Xu ,&nbsp;Xurong Xu ,&nbsp;Zhidong Lou","doi":"10.1016/S0968-5677(98)00052-2","DOIUrl":"10.1016/S0968-5677(98)00052-2","url":null,"abstract":"<div><p>The behavior of hot-electrons is very important for thin film electroluminescence (TFEL) devices. In SrS:Ce TFEL, the electrons in excited states of Ce<sup>3+</sup> ions are easily to be ionized into conduction band under a high electric field, and are easily trapped by the ionized luminescent centers under a low electric field. In this paper, the dependence of ionization possibility on the field strength is studied and the emission wave forms were determined. The energy transfer process is discussed.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 465-467"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00052-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74577132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
CdSe/TiO2 nanocrystalline solar cells CdSe/TiO2纳米晶太阳能电池
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00109-6
J.H. Fang, X.M. Lu, X.F. Zhang, D.G. Fu, Z.H. Lu
{"title":"CdSe/TiO2 nanocrystalline solar cells","authors":"J.H. Fang,&nbsp;X.M. Lu,&nbsp;X.F. Zhang,&nbsp;D.G. Fu,&nbsp;Z.H. Lu","doi":"10.1016/S0968-5677(98)00109-6","DOIUrl":"10.1016/S0968-5677(98)00109-6","url":null,"abstract":"<div><p>CdSe sensitized TiO<sub>2</sub> nanocrystalline solar cells were made with the participation of silicotungstic acid (STA) during the deposition of CdSe, the resulting Voc and Isc were 0.23<!--> <!-->V<!--> <!-->cm<sup>-2</sup> and 10<!--> <!-->mA<!--> <!-->cm<sup>-2</sup>, respectively. The doping, time and microporous membrane effects were also discussed.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 709-711"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00109-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77305676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
FTIR-ATR study of self-assembled thiol monolayers on gold 金表面自组装巯基单层膜的红外光谱- atr研究
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00085-6
Ran Zu, Hanming Ding, Wei Li, Dongmei Wang, Shiquan Xi
{"title":"FTIR-ATR study of self-assembled thiol monolayers on gold","authors":"Ran Zu,&nbsp;Hanming Ding,&nbsp;Wei Li,&nbsp;Dongmei Wang,&nbsp;Shiquan Xi","doi":"10.1016/S0968-5677(98)00085-6","DOIUrl":"10.1016/S0968-5677(98)00085-6","url":null,"abstract":"<div><p>Self-assembled monolayers of 1-teradecanethiol on gold were characterized by means of FTIR-ATR measurements, XPS and contact angle measurements. Linear dichroism measurements using FTIR-ATR are used to estimate the orientation of the alkyl chains. An equation for calculating the orientation angles of the alkyls chains was deduced.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 607-609"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00085-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81322226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Spectral study on the formation of a self-assembled mesoscopic supercoil 自组装介观超线圈形成的光谱研究
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00115-1
W.S. Yang, R. Lu, X.D. Chai, N. Lu, S.G. Chen, Y.S. Jiang, Y.W. Cao, X.Y. Tang, T.J. Li
{"title":"Spectral study on the formation of a self-assembled mesoscopic supercoil","authors":"W.S. Yang,&nbsp;R. Lu,&nbsp;X.D. Chai,&nbsp;N. Lu,&nbsp;S.G. Chen,&nbsp;Y.S. Jiang,&nbsp;Y.W. Cao,&nbsp;X.Y. Tang,&nbsp;T.J. Li","doi":"10.1016/S0968-5677(98)00115-1","DOIUrl":"10.1016/S0968-5677(98)00115-1","url":null,"abstract":"<div><p>Molecular recognition directing self-assembly of two complementary molecular components, 5-(4-dodecyloxybenzylidene)-2,4,6-(1H,3H)-pyrimidinetrione (<strong>B</strong>) and 4-amino-2,6-didodecylamino-1,3,5-triazine (<strong>M</strong>), was found to form a mesoscopic supercoil structure with length of several tens of μm and diameter of ca. 300 nm. Fluorescence spectral studies show that it takes more than 1200<!--> <!-->h for the self-assembling process to reach the equilibrium in chloroform. It was suggested that in this system with positive cooperation, at least two steps were involved in the self-assembling process. First, supramolecular tapes, cyclic hexamers, are formed based on the network of triple complementary hydrogen bonds between <strong>B</strong> and <strong>M</strong>. Second, π-aromatic stacking and van der Waals interactions drive further the assembling of tapes into more complex nanometric strand. The coiling of the strands results in the formation of the supercoil structure.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 741-745"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00115-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89545937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Porphyrin–TiO2 nanoparticle heterostructure assembly by Langmuir–Blodgett method Langmuir-Blodgett法组装卟啉- tio2纳米颗粒异质结构
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00083-2
J.H. Yang , Y.M. Chen , Y.B. Bai , M. Xian , D.F. Shen , Y.Q. Wang , S.R. Du , R. Lu , T.J. Li , Y. Wu , W.Q. Xu
{"title":"Porphyrin–TiO2 nanoparticle heterostructure assembly by Langmuir–Blodgett method","authors":"J.H. Yang ,&nbsp;Y.M. Chen ,&nbsp;Y.B. Bai ,&nbsp;M. Xian ,&nbsp;D.F. Shen ,&nbsp;Y.Q. Wang ,&nbsp;S.R. Du ,&nbsp;R. Lu ,&nbsp;T.J. Li ,&nbsp;Y. Wu ,&nbsp;W.Q. Xu","doi":"10.1016/S0968-5677(98)00083-2","DOIUrl":"10.1016/S0968-5677(98)00083-2","url":null,"abstract":"<div><p>Surface pressure–area (<em>π</em>–A) isotherm characteristics of 5,10,15-(4-hydroxyphenyl)-20-(4-hexadecyloxyphenyl) porphyrin monolayers on both the water and TiO<sub>2</sub> hydrosol subphases, the UV–vis absorption and fluorescence spectra of the monolayers deposited onto CaF<sub>2</sub> substrates are investigated. <em>π</em>–A isotherms find that the porphyrin ring extends to lie more flat on a TiO<sub>2</sub> hydrosol surface than on a water surface. The UV–vis absorption spectra of the deposited monolayers prove that the porphyrin TiO<sub>2</sub> nanoparticle heterostructure assembly is formed, in which the J-aggregated effect of porphyrin is weakened, comparing with that in the monolayer deposited from water subphase. The fluorescence spectra show that the fluorescent emission quenching by the photoinduced electron transfer from the excited porphyrin molecule to TiO<sub>2</sub> nanoparticle, occurs under excitation in the Soret band region of porphyrin.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 599-602"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00083-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87857713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Changing organic electroluminescent color by the voltage applied 通过施加电压改变有机电致发光的颜色
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00098-4
Guangming Wang , Yuanzhen Xiang , Chunwei Yuan , Zuhong Lu , Junzhe Hu , Xiangzhen Sun
{"title":"Changing organic electroluminescent color by the voltage applied","authors":"Guangming Wang ,&nbsp;Yuanzhen Xiang ,&nbsp;Chunwei Yuan ,&nbsp;Zuhong Lu ,&nbsp;Junzhe Hu ,&nbsp;Xiangzhen Sun","doi":"10.1016/S0968-5677(98)00098-4","DOIUrl":"10.1016/S0968-5677(98)00098-4","url":null,"abstract":"<div><p>Organic electroluminescent (EL) devices with one layer of Alq(CH<sub>3</sub>)<sub>2</sub> doped with poly(<em>N</em>-vinylcarbozle) (PVK) (Alq(CH<sub>3</sub>)<sub>2</sub>/PVK) as the EL-emitting layer sandwiched between indium tin-oxide (ITO) and aluminum electrodes have been fabricated by spin coating on to ITO. We found that two EL-peak intensities at the position of 520<!--> <!-->nm from Alq(CH<sub>3</sub>)<sub>2</sub> and at 470<!--> <!-->nm from PVK change with different voltages applied to the organic EL devices. According to the analysis of the experimental results, it could be inferred that a charge transfer from Alq(CH<sub>3</sub>)<sub>2</sub>to PVK may take place in the Alq(CH<sub>3</sub>)<sub>2</sub>/PVK mixed film, leading to a much increased the EL intensity of the peak <span><math><mtext>(λ=470</mtext><mspace></mspace><mtext>nm</mtext><mtext>)</mtext></math></span> from the PVK and a slight increase in the EL intensity of the peak <span><math><mtext>(λ=520</mtext><mspace></mspace><mtext>nm</mtext><mtext>)</mtext></math></span> from Alq(CH<sub>3</sub>)<sub>2</sub> with the voltage elevation at the higher voltages applied.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 665-667"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00098-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86425713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Jordan scenario is behind the Van Hove scenario. Towards a quantum chemical theory of high temperature superconductivity 范霍夫的故事背后是乔丹的故事。迈向高温超导的量子化学理论
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00061-3
G. Biczo
{"title":"A Jordan scenario is behind the Van Hove scenario. Towards a quantum chemical theory of high temperature superconductivity","authors":"G. Biczo","doi":"10.1016/S0968-5677(98)00061-3","DOIUrl":"10.1016/S0968-5677(98)00061-3","url":null,"abstract":"<div><p>It is suggested that the appearance of Jordan blocks in the normal form of the recursion (transfer) matrix is responsible for high temperature superconductivity and related phenomena. Several published observations are discussed to support this idea. The draft of a quantum chemical theory is given for a more complete verification.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 503-505"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00061-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88681907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Real-time analysis of ultrathin films’ evolution 超薄膜演变的实时分析
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00060-1
Yi-Wen Chen, Jian-Hua Gu, Zu-Hong Lu
{"title":"Real-time analysis of ultrathin films’ evolution","authors":"Yi-Wen Chen,&nbsp;Jian-Hua Gu,&nbsp;Zu-Hong Lu","doi":"10.1016/S0968-5677(98)00060-1","DOIUrl":"10.1016/S0968-5677(98)00060-1","url":null,"abstract":"<div><p>The system of real-time evolution and analysis of films’ parameters has been suggested and developed. Its principle is based on surface plasmon resonance. The results of Ag film left in air have been obtained by this system.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 501-502"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00060-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88831220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of polymerization conditions on morphologies of polypyrrole 聚合条件对聚吡咯形貌的影响
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00117-5
Chunwei Yuan, Ping Li, Jingning Shan, Haiqian Zhang
{"title":"Influence of polymerization conditions on morphologies of polypyrrole","authors":"Chunwei Yuan,&nbsp;Ping Li,&nbsp;Jingning Shan,&nbsp;Haiqian Zhang","doi":"10.1016/S0968-5677(98)00117-5","DOIUrl":"10.1016/S0968-5677(98)00117-5","url":null,"abstract":"<div><p>Using a needle-circle electrode configuration, we investigated the relationship between morphologies of polypyrrole (PPy) and polymerization conditions, such as the kinds of electrolyte, solvent and electrode, the concentrations of electrolyte and monomer, the applied voltages, etc. The various morphologies of PPy are classified into seven types. The influence of the substrate was also taken into account. Four types of morphologies of PPy under the mica are shown. We recently obtained organized PPy particles by the induction of the mica substrate. The neuron network-like interconnections of PPy fabricated by controlling the polymerization conditions are shown.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 751-755"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00117-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91352539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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