{"id":502,"date":"2015-06-05T00:21:08","date_gmt":"2015-06-05T04:21:08","guid":{"rendered":"http:\/\/scholarblogs.emory.edu\/lianlab\/?page_id=502"},"modified":"2020-01-06T16:32:04","modified_gmt":"2020-01-06T20:32:04","slug":"transient-absorption-spectroscopy","status":"publish","type":"page","link":"https:\/\/scholarblogs.emory.edu\/lianlab\/transient-absorption-spectroscopy\/","title":{"rendered":"Transient Absorption Spectroscopy"},"content":{"rendered":"

\"2\"<\/a>In the femtosecond transient absorption (fs-TA) technique a femtosecond pump pulse creates initial excited states, which are detected through changes in the transmission of a time-delayed probe pulse. In our lab, fs-TA experiments on quantum dot (QD) systems use UV or visible light as the pump, and white light continuum (WLC) as the probe, which can monitor electronic transitions. Meanwhile, we can also use mid-IR probe pulses obtained by difference-frequency mixing of two near-IR pulses provide an alternative way to study QD intraband transitions. This technique allow us to study the interfacial charge separation dynamics in photovoltaic nanomaterials.<\/p>\n

 <\/p>\n

\n

Selected Publications<\/h4>\n\n\n\n\n\n
\"\"<\/a><\/td>\nHaiming Zhu, Ye Yang, Kaifeng Wu, Tianquan Lian,  \u201dCharge Transfer Dynamics from Photoexcited Semiconductor Quantum Dots<\/a>\u201d, Annu. Rev. Phys. Chem.<\/strong>, 2016, 67,1<\/td>\n<\/tr>\n
\"\"<\/td>\nKaifeng Wu, Tianquan Lian, \u201dQuantum confined colloidal nanorod heterostructures for solar-to-fuel conversion<\/a>\u201d Chem. Soc. Rev., <\/em>2016<\/strong>, 45<\/em>, 3781-810.<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nKaifeng Wu, Haiming Zhu, Tianquan Lian, \u201dUltrafast Exciton Dynamics and Light-Driven H2<\/sub> Evolution in Colloidal Semiconductor Nanorods and Pt-Tipped Nanorods<\/a>\u201d Acc. Chem. Res.<\/strong>, 2015, 48, 851\u2013859<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/h4>\n
\n

Other research Fields<\/h4>\n\n\n\n
\"\"<\/a>  <\/p>\n

Sum Frenquency Generation<\/a><\/p>\n<\/td>\n

\"\"<\/p>\n

Single particle spectroscopy<\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
\"\"<\/a>  <\/p>\n

Electric Field Induced Second harmonic generation<\/a><\/p>\n<\/td>\n

\"\"<\/a>  <\/p>\n

Surface enhanced Raman spectroscopy<\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

In the femtosecond transient absorption (fs-TA) technique a femtosecond pump pulse creates initial excited states, which are detected through changes in the transmission of a time-delayed probe pulse. In our lab, fs-TA experiments on quantum<\/p>\n","protected":false},"author":2944,"featured_media":0,"parent":0,"menu_order":14,"comment_status":"closed","ping_status":"closed","template":"template-fullwidth.php","meta":{"ngg_post_thumbnail":0,"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-502","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/scholarblogs.emory.edu\/lianlab\/wp-json\/wp\/v2\/pages\/502","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scholarblogs.emory.edu\/lianlab\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/scholarblogs.emory.edu\/lianlab\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/scholarblogs.emory.edu\/lianlab\/wp-json\/wp\/v2\/users\/2944"}],"replies":[{"embeddable":true,"href":"https:\/\/scholarblogs.emory.edu\/lianlab\/wp-json\/wp\/v2\/comments?post=502"}],"version-history":[{"count":26,"href":"https:\/\/scholarblogs.emory.edu\/lianlab\/wp-json\/wp\/v2\/pages\/502\/revisions"}],"predecessor-version":[{"id":1542,"href":"https:\/\/scholarblogs.emory.edu\/lianlab\/wp-json\/wp\/v2\/pages\/502\/revisions\/1542"}],"wp:attachment":[{"href":"https:\/\/scholarblogs.emory.edu\/lianlab\/wp-json\/wp\/v2\/media?parent=502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}