Lee, Woosung Choi, Jun Namgoong, Jin Woong Kim, Se Hun Sun, Kyung Chul Jeong, Sung Hoon Yoo, Kicheon Ko, Min Jae Kim, Jae Pil 2024-01-20T10:00:44Z 2024-01-20T10:00:44Z 2021-09-05 2014-05 0143-7208 https://pubs.kist.re.kr/handle/201004/126825 Phenoxazine derivatives with heterocyclic bridge units and an additional donor were synthesized and applied to dye-sensitized solar cells. To study the effects of these substituents on the DSSC performance, the photophysical, electrochemical, and photovoltaic properties of the dyes were investigated. The introduced heterocyclic bridge units furan and thiophene improved the short-circuit current due to the red-shifted absorption spectra of the dyes. The ethoxyphenyl ring introduced to the phenoxazine moiety as an additional donor broadened the spectrum of the dye, while the reduced adsorption of the dye caused by its non-planar structure limited the enhancement of the short-circuit current. Among the synthesized dyes, the one with furan as a bridge unit showed the best overall conversion efficiency of 5.26%. (C) 2014 Elsevier Ltd. All rights reserved. English ELSEVIER SCI LTD ORGANIC-DYES PHOTOVOLTAIC PROPERTIES CONVERSION-EFFICIENCY ELECTRON LIFETIME SEMICONDUCTORS ENHANCEMENT PORPHYRINS SPACERS FILMS The effect of five-membered heterocyclic bridges and ethoxyphenyl substitution on the performance of phenoxazine-based dye-sensitized solar cells Article 10.1016/j.dyepig.2013.12.022 1 DYES AND PIGMENTS, v.104, pp.185 - 193 DYES AND PIGMENTS 104 185 193 scie scopus 000332051200025 2-s2.0-84893184427 Chemistry, Applied Engineering, Chemical Materials Science, Textiles Chemistry Engineering Materials Science Article ORGANIC-DYES PHOTOVOLTAIC PROPERTIES CONVERSION-EFFICIENCY ELECTRON LIFETIME SEMICONDUCTORS ENHANCEMENT PORPHYRINS SPACERS FILMS Dye-sensitized solar cells Phenoxazine dyes Five-membered heterocyclic bridges Ethoxyphenyl substitution Dihedral angle Dye adsorption