{"product_id":"spectroscopy-of-carbazole-based-conjugated-polymers-von-ripon-dey","title":"Spectroscopy of Carbazole-based Conjugated Polymers","description":"\u003cp\u003eThis book describes Opto-electronic properties of three new carbazole based co-polymers that can be implemented as host in phosphorescence polymer light-emitting diode. We present absorption, steady-state emission and time resolved emission spectroscopy of carbazole based conjugated polymers. The decay kinetics of triplet emission of the co-polymers was observed after optical excitation. Several findings such as optical band-gap, singlet to singlet transition energies, triplet to triplet transition energies, exchange energies (¿EST), Stoke''s shift have been presented. The onset of absorption is at 3.10-3.25 eV for P1, P2 and P3 polymers respectively. One emission band originating from singlet excited state is observed at RT. The gaps between singlet and triplet excited states are 0.44-0.47 eV. From decay kinetics the triplet excited state life-times were found to be several orders of ms at 10-13 K that reduces to less than 3 ms at room temperature. At room temperature delayed fluorescence has been observed for all three polymers. An energy band diagram including lower lying excited states has been constructed and compared.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783843374200\"\u003e\u003ch3\u003eOptical Absorption, Steady-state Emission and Time-resolved Emission Spectroscopy regards\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783843374200","offer_id":39497102032989,"sku":"9783843374200","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/27a627c2-0ead-4e5d-8757-14a45b3d234c.jpg?v=1757656503","url":"https:\/\/shop.autorenwelt.de\/en\/products\/spectroscopy-of-carbazole-based-conjugated-polymers-von-ripon-dey","provider":"Autorenwelt Shop","version":"1.0","type":"link"}