排序方式: 共有5条查询结果,搜索用时 93 毫秒
1
1.
2.
IntroductionDye sensitizedsolarcells (DSSC)havebecomethefocusofmanyinvestigationssinceMichaelGr tzelandco workersmadethedyemoleculesadsorbedonaporousnet workoftheinterconnectednanometer sizedcrystallinesofawidebandgapsemiconductor.1 3Animpressivesolar to electricalenergyconversionefficiencyof 10 %hasbeenre portedanditmakespracticalapplicationfeasible .4 Thissystemconsistsofadye coatedsemiconductorelectrodeandacounterelectrodearrangedinasandwichconfigura tionandtheinter electrodespaceisfilled… 相似文献
3.
Two new mixed-ligand ruthenium(Ⅱ) complexes,Ru(dcbpy)-(LL)NCS)2[where dcbpy=4,4‘-dicarboxyl-2,2‘‘-bipyridine,LL=4,4‘-bis(N-methyl-anilinomethyl)-2,2‘‘-bipyridine(2)],were synthesized,and the tphotophysical properties of these complexes were studied.The metal-to-ligand charge transfer (MLCT) transitions of these complexes exhibited solvatochromic effect due to the existence of NCS ligands.The MLCT energies also strongly depend on the pH values of the solutions because of protonation and deprotonation of the carboxyl groups.The pKa values of the ground state,4.0 for 1 and 3.8 for 2,were obtained from the titration curves.The photoelectrochemical properties of 1 and 2 as sensitizers in sandwich-type solar cells have been studied.Complex 1 exhibited better photoelectrochemical behavior than complex 2 as expected.It was proved that the design of mixed-ligand complex by introducing electron donating group in one of the ligands should be a promising approach. 相似文献
4.
IntroductionThehighsensitivityandselectivityofmolecularfluores cenceorluminescencehavebeenwidelyutilizedinmonitoringH+ ,Ca2 + ,Na+ ,Mg2 + ,andotherimportantcationoran ionionsinbiologicalorenvironmentalsystems.Duetothesensitiveresponseofluminescenceuponmicroenviromentalchanges (e .g .polarityofsolvent,pH ,thepresenceofions) ,bipyridinecomplexesofRe(I)andRu(II)withmetaltoligandchargetransferexcitedstatesconstitutealargefami lyofchemicalsensors.1 5Intheseprobingmolecules ,theco operationofthe… 相似文献
5.
化学工业出版社以服务工科院校本科教学为基础,理、工、农、林、医兼具,品种齐全,覆盖专业基础课和专业方向课。在销品种约300种,其中“十二五”规划教材20种,“十一五”规划教材24种,四大化学理论课教材约80种。目前,出版社已经借助云服务、公众号、教学平台等开展在线资源和新形态教材建设。未来我社将紧跟教改动态,积极利用信息技术,着重策划出版一批特色突出的高质量教材,同时加大对国外优秀化学教材的引进力度。 相似文献
1