Topic
Xanthene
About: Xanthene is a research topic. Over the lifetime, 2132 publications have been published within this topic receiving 34803 citations. The topic is also known as: Xanthene & dibenzo[a,e]pyran.
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TL;DR: In this paper, the two-photon absorption coefficients of thionine and erythrosine at 1064 and 532 nm were measured using nanosecond (10ns) and 40-ps pulses (0.8 −10−11 and 1.0 −11 −11 W−1 respectively).
2 citations
TL;DR: In this article , a low-cost spiro[fluorene-9,9′-xanthene] core-based hole transport materials (HTM) was designed and synthesized through molecular engineering of the efficient HTM SFX-DM by introducing extra 4,4′-dimethoxydiphenylamine units to enlarge the π-conjugation range and to further modulate the charge transport property.
Abstract: Efficient hole transport and excellent film formation properties are essential for efficient hole transport materials (HTMs) in perovskite solar cells (PCSs). And, the π-conjugated system and the steric configuration of HTMs can affect charge-carrier mobility and film formation. So, it is feasible to develop efficient HTMs via optimizing the molecular configuration and enlarging the π-conjugation system. Herein, a low-cost spiro[fluorene-9,9′-xanthene] (SFX) core-based HTM, named SFX-DM-DPA, is designed and synthesized through molecular engineering of the efficient HTM SFX-DM by introducing extra 4,4′-dimethoxydiphenylamine units to enlarge the π-conjugation range and to further modulate the charge transport property. The resulting HTM demonstrates enhanced hole extraction/transport efficiency and desired film formation ability. PSCs based on SFX-DM-DPA yielded an impressive efficiency of 22.7%. These results confirmed the importance of precise structural adjustment of the π-conjugated range for developing low-cost and highly efficient HTMs.
2 citations
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TL;DR: In this paper , a novel thermostable, photoactive and solvable polyamides containing fluorene and xanthene groups were synthesized, as was a ZnO-based composite, which were used as antibacterial and anticancer agents and as absorbents to remove MB dye.
2 citations