Guest‐Induced Photophysical Property Switching of Artificial Light‐Harvesting Dendrimers

Jeong, Young Hwan; Son, Minjung; Yoon, Hongsik; Kim, Pyosang; Lee, Do Hyung; Kim, Dongho; Jang, Woo Dong

doi:10.1002/anie.201400835

Cited by 57 publications

(28 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[51] There have been several reports of dendritic structures that exhibit a Stokes' shift that is large enough to reduce reabsorption. [52][53][54][55][56] For example, Akkaya et al reported a dendritic system composed of borondipyrromethene (bodipy) dyes with varying degrees of functionalization with styryl groups.…”

Section: Tuning the Effective Stokes' Shift Using Energy Transfer Casmentioning

confidence: 99%

Towards Efficient Spectral Converters through Materials Design for Luminescent Solar Devices

2017

View full text Add to dashboard Cite

Single-junction photovoltaic devices exhibit a bottleneck in their efficiency due to incomplete or inefficient harvesting of photons in the low- or high-energy regions of the solar spectrum. Spectral converters can be used to convert solar photons into energies that are more effectively captured by the photovoltaic device through a photoluminescence process. Here, recent advances in the fields of luminescent solar concentration, luminescent downshifting, and upconversion are discussed. The focus is specifically on the role that materials science has to play in overcoming barriers in the optical performance in all spectral converters and on their successful integration with both established (e.g., c-Si, GaAs) and emerging (perovskite, organic, dye-sensitized) cell types. Current challenges and emerging research directions, which need to be addressed for the development of next-generation luminescent solar devices, are also discussed.

show abstract

Section: Tuning the Effective Stokes' Shift Using Energy Transfer Casmentioning

confidence: 99%

Towards Efficient Spectral Converters through Materials Design for Luminescent Solar Devices

2017

View full text Add to dashboard Cite

show abstract

“…Considering the characteristic spectral evolution shown in decay associated spectra and that the singlet excited state of zinc porphyrin species mainly decays via intersystem crossing to a triplet state rather than fluorescence emission, we can assign the TA decay of monomeric zinc porphyrin to intersystem crossing. [40][41][42][43][44] Unlike the spectral evolution of the monomeric zinc porphyrin, the TA spectra of dendrimers show distinct and fast spectral changes. The ground state bleach (GSB) of donor (543 nm) is reduced, while the GSB of acceptor (517 nm) is increased, and the SE of donor (637 nm) is shifted to longer wavelengths.…”

Section: Fret Efficiencies Of Multiporphyrin Dendrimersmentioning

confidence: 99%

Enhancement of Energy Transfer Efficiency with Structural Control of Multichromophore Light‐Harvesting Assembly

Lee

Kim

et al. 2020

Advanced Science

View full text Add to dashboard Cite

Multichromophore systems (MCSs) are envisioned as building blocks of molecular optoelectronic devices. While it is important to understand the characteristics of energy transfer in MCSs, the effect of multiple donors on energy transfer has not been understood completely, mainly due to the lack of a platform to investigate such an effect systematically. Here, a systematic study on how the number of donors (n D) and interchromophore distances affect the efficiency of energy transfer (FRET) is presented. Specifically, FRET is calculated for a series of model MCSs using simulations, a series of multiporphyrin dendrimers with systematic variation of n D and interdonor distances is synthesized, and FRET s of those dendrimers using transient absorption spectroscopy are measured. The simulations predict FRET in the multiporphyrin dendrimers well. In particular, it is found that FRET is enhanced by donor-to-donor energy transfer only when structural heterogeneity exists in an MCS, and the relationships between the FRET enhancement and the structural parameters of the MCS are revealed.

show abstract

“…These branches may contain a large number of reactive end groups. Several porphyrin-core dendrimers were synthesized and their properties investigated in recent years [20,21,22,23,24]. The biomedical applications of these compounds are also of interest [25].…”

Section: Introductionmentioning

confidence: 99%

Photophysics and photochemistry of porphyrin core PAMAM dendrimers. Excited states interaction with quinones

Militello

Arbeloa

Ramírez³

et al. 2020

Journal of Photochemistry and Photobiology A: Chemistry

View full text Add to dashboard Cite

This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

Guest‐Induced Photophysical Property Switching of Artificial Light‐Harvesting Dendrimers

Cited by 57 publications

References 26 publications

Towards Efficient Spectral Converters through Materials Design for Luminescent Solar Devices

Towards Efficient Spectral Converters through Materials Design for Luminescent Solar Devices

Enhancement of Energy Transfer Efficiency with Structural Control of Multichromophore Light‐Harvesting Assembly

Photophysics and photochemistry of porphyrin core PAMAM dendrimers. Excited states interaction with quinones

Contact Info

Product

Resources

About