{"id":145,"date":"2016-11-09T12:18:11","date_gmt":"2016-11-09T12:18:11","guid":{"rendered":"http:\/\/flythemesdemo.net\/campus\/?p=11"},"modified":"2023-10-26T13:00:53","modified_gmt":"2023-10-26T12:00:53","slug":"final-year-performance-of-students","status":"publish","type":"post","link":"https:\/\/www.ujfi.fei.stuba.sk\/en\/final-year-performance-of-students\/","title":{"rendered":"Fluorescen\u010dn\u00e1 spektroskopia materi\u00e1lov pre organick\u00fa mikroelektroniku a\u00a0fotovoltaiku"},"content":{"rendered":"\n

Ka\u017ed\u00e1 l\u00e1tka pohlcuje ist\u00fd typ elektromagnetick\u00e9ho \u017eiarenia. Zlo\u017eit\u00e9 molekuly organick\u00fdch polovodi\u010dov
absorbuj\u00fa \u010dasto vo vidite\u013enej \u010dasti spektra. Pohlten\u00fd fot\u00f3n sp\u00f4sob\u00ed zv\u00fd\u0161enie energie (excit\u00e1ciu) l\u00e1tky,
ktor\u00e1 sa po \u010dase zbavuje prebyto\u010dnej energie op\u00e4tovn\u00fdm vy\u017eiaren\u00edm fot\u00f3nu, ale s\u00a0ni\u017e\u0161ou frekvenciou.
Meranie spektra \u017eiarenia l\u00e1tky sp\u00f4soben\u00e9ho optickou excit\u00e1ciou sa naz\u00fdva fluorescen\u010dn\u00e1 spektroskopia. To, ak\u00e9 svetlo l\u00e1tka pohlt\u00ed a n\u00e1sledne vy\u017eiari ve\u013ea napovie o \u0161trukt\u00fare samotn\u00fdch molek\u00fal, ale aj o ich vz\u00e1jomnom p\u00f4soben\u00ed. Pracujeme s farbivami v tekut\u00fdch rozp\u00fa\u0161\u0165adl\u00e1ch, ale aj s tenk\u00fdmi vrstvami na pevnom substr\u00e1te. Meriame tzv. excita\u010dn\u00e9 a emisn\u00e9 spektr\u00e1 v rozsahu od 250 nm do 900 nm. Dok\u00e1\u017eeme zis\u0165ova\u0165 aj dobu \u017eivota vzbuden\u00e9ho stavu molekuly met\u00f3dou korelovan\u00e9ho po\u010d\u00edtania fot\u00f3nov v \u010dasovej dom\u00e9ne od 100 ps.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Sk\u00famali sme napr\u00edklad s\u00favis medzi pr\u00edtomnos\u0165ou defektn\u00fdch stavov v zak\u00e1zanom p\u00e1se vrstvy P3HT
na ITO a poklesom intenzity prechodu S 0 \u2013 S 1 v emisnom spektre vzorky. P3HT je l\u00e1tka, ktor\u00e1 sa
\u0161tudovala najm\u00e4 v minulom desa\u0165ro\u010d\u00ed. Na\u0161e zistenie v\u0161ak umo\u017e\u0148uje \u010fal\u0161\u00ed z\u00e1kladn\u00fd v\u00fdskum podobn\u00fdch molek\u00fal, ktor\u00e9 maj\u00fa potenci\u00e1l vyu\u017eitia v modernej organickej mirkoelektronike a elektroenergetike.<\/p>\n\n\n\n

Viac v \u010dl\u00e1nku:<\/p>\n\n\n\n

KOTOROV\u00c1, So\u0148a \u2013 V\u00c1RY, Tom\u00e1\u0161 \u2013 CHLP\u00cdK, Juraj \u2013 TOU\u0160EK, Ji\u0159\u00ed \u2013 TOU\u0160KOV\u00c1, Jana \u2013 RUTSCH, Radka \u2013 V\u00c9GS\u00d6, Karol \u2013 \u0160IFFALOVI\u010c, Peter \u2013 N\u00c1DA\u017dDY, Vojtech \u2013 MAJKOV\u00c1, Eva \u2013 CIR\u00c1K, J\u00falius. The influence of surface roughness on the presence of polymorphs and defect states in P3HT layers. In Applied Surface Science. Vol. 573, (2022), Art. no. 151539 [7] s. ISSN 0169-4332<\/a><\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

Ka\u017ed\u00e1 l\u00e1tka pohlcuje ist\u00fd typ elektromagnetick\u00e9ho \u017eiarenia. Zlo\u017eit\u00e9 molekuly organick\u00fdch polovodi\u010dovabsorbuj\u00fa \u010dasto vo vidite\u013enej \u010dasti spektra. Pohlten\u00fd fot\u00f3n sp\u00f4sob\u00ed zv\u00fd\u0161enie energie (excit\u00e1ciu) l\u00e1tky,ktor\u00e1 sa po \u010dase zbavuje prebyto\u010dnej energie op\u00e4tovn\u00fdm vy\u017eiaren\u00edm fot\u00f3nu, ale s\u00a0ni\u017e\u0161ou frekvenciou.Meranie spektra \u017eiarenia l\u00e1tky sp\u00f4soben\u00e9ho optickou excit\u00e1ciou sa naz\u00fdva fluorescen\u010dn\u00e1 spektroskopia. To, ak\u00e9 svetlo l\u00e1tka pohlt\u00ed a n\u00e1sledne vy\u017eiari ve\u013ea napovie o \u0161trukt\u00fare samotn\u00fdch molek\u00fal, ale aj o ich vz\u00e1jomnom p\u00f4soben\u00ed. Pracujeme s farbivami v tekut\u00fdch rozp\u00fa\u0161\u0165adl\u00e1ch, ale aj s tenk\u00fdmi vrstvami na pevnom substr\u00e1te. Meriame tzv. excita\u010dn\u00e9 a emisn\u00e9 spektr\u00e1 v rozsahu od 250 nm do 900 nm. Dok\u00e1\u017eeme zis\u0165ova\u0165 aj dobu \u017eivota vzbuden\u00e9ho stavu… <\/p>\n","protected":false},"author":1,"featured_media":764,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fyzika-materialov"],"_links":{"self":[{"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/posts\/145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/comments?post=145"}],"version-history":[{"count":0,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/posts\/145\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/media\/764"}],"wp:attachment":[{"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/media?parent=145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/categories?post=145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ujfi.fei.stuba.sk\/en\/wp-json\/wp\/v2\/tags?post=145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}