Unknown

Dataset Information

0

Highly-efficient red-to-yellow/green upconversion sensitized by phthalocyanine palladium with high triplet energy-level.


ABSTRACT: Soluble 3,7,11,15-tetra(tert-butyl)phthalocyanine palladium (TBPcPd) and 3,7,11,15-tetra(pentyloxy)phthalocyanine palladium (POPcPd) were synthesized and employed as sensitizers in expectation of achieving red-to-yellow/green upconversion (UC), doped with rubrene (Rub) and 9,10-bis(phenylethynyl)anthracene (BPEA), respectively. Under excitation of a 655 nm diode laser (∼1.5 W cm-2), a maximum red-to-green UC efficiency of 0.07% and a maximum red-to-yellow UC efficiency of 8.03% were obtained and the latter can drive a Si-photodiode to generate obvious photocurrent. The results showed that although a large triplet energy-level difference (ΔE = 3 E sen. - 3 E anni.) of the sensitizer (3 E sen.)/annihilator (3 E anni.) pair helps to improve the upconversion, the sensitizer/annihilator pair with a ΔE value less than zero still works. However, when the ΔE ≤ -0.05 eV, this bicomponent pair is not valid anymore. Thus, a comparison of the ΔE value can predict whether the sensitizer/annihilator pair is useful, which presents a quantitatively evaluated approach for exploring new-type upconversion systems for the first time.

SUBMITTER: Wang K 

PROVIDER: S-EPMC9033214 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

altmetric image

Publications

Highly-efficient red-to-yellow/green upconversion sensitized by phthalocyanine palladium with high triplet energy-level.

Wang Kai K   Huang Suqin S   Ding Ping P   Liang Zuoqin Z   Chen Shuoran S   Li Lin L   Ye Changqing C   Wang Xiaomei X  

RSC advances 20210517 29


Soluble 3,7,11,15-tetra(<i>tert</i>-butyl)phthalocyanine palladium (TBPcPd) and 3,7,11,15-tetra(pentyloxy)phthalocyanine palladium (POPcPd) were synthesized and employed as sensitizers in expectation of achieving red-to-yellow/green upconversion (UC), doped with rubrene (Rub) and 9,10-bis(phenylethynyl)anthracene (BPEA), respectively. Under excitation of a 655 nm diode laser (∼1.5 W cm<sup>-2</sup>), a maximum red-to-green UC efficiency of 0.07% and a maximum red-to-yellow UC efficiency of 8.03%  ...[more]

Similar Datasets

| S-EPMC9322448 | biostudies-literature
| S-EPMC6043590 | biostudies-literature
| S-EPMC6115628 | biostudies-literature
| S-EPMC8211736 | biostudies-literature
| S-EPMC10107691 | biostudies-literature
| S-EPMC7728324 | biostudies-literature
| S-EPMC6115614 | biostudies-literature
| S-EPMC9578683 | biostudies-literature
| S-EPMC8565365 | biostudies-literature
| S-EPMC4915588 | biostudies-literature