Photoinduced luminescence of fac-[Re(CO)3(phen)(stpy)]+ in CH3CN and PMMA

Photoinduced isomerization and luminescence of fac-[Re(CO)3(ph2phen)(bpe)]+

“…The photophysical system and procedures have been described in detail elsewhere. 11,21 The emission spectra were obtained using a 1.000 cm path length quartz cuvet and a front face arrangement for polymer films. + (see Figure 1) corroborated the assignments.…”

“…13,21 The [ReCl(CO) 5 ] complex (0.27 g, 0.75 mmol) and an excess of ph 2 phen (0.5 g, 1.5 mmol) were suspended in 30 mL of xylene (Nuclear) and heated to reflux for 6 hours. After cooling, the resulting solid was separated by filtration and washed with xylene.…”

“…11,21 The fac-[Re(CO) 3 (ph 2 phen)(trans-bpe)]PF 6 complex was dissolved in acetonitrile, added to an acetonitrile solution of PMMA and left to dry.…”

“…In our previous works [10][11][12][13]16,17,21,22 the photoisomerization of trans-L in fac-[Re(CO) 3 (NN)(trans-L)] + , NN = polypyridynes and L = 1,2-bis(4-pyridyl)ethylene (bpe), or 4-styrylpyridine (stpy), and the luminescence of their photoproducts were investigated. Here, we extend our investigations by using 4,7-diphenyl-1,10-phenanthroline (ph 2 phen) as a polypyridyl ligand in the photoisomerization of trans-bpe in fac-[Re(CO) 3 (ph 2 phen)(trans-bpe)] + in order to observe the tunability of the photochemical and photophysical behaviors of trans-and cis-isomer complexes.…”

Enhanced Photoelectrical Performance of DSSC by Co-Doped SnO₂ Nanoparticles

“…Due to their cost efficiency, non-toxicity, and complete biodegradation, natural dyes have been a popular subject of research. Thus far, several natural dyes have been utilized as sensitizers in DSSCs, such as cyanin [18][19][20][21][22][23][24][25][26][27], chlorophyll [28] etc. In this paper we investigate the effect of structural and morphology of SnO 2 nano particles on the performance of DSSC by comparing cells with different natural dyes.…”