Chemistry

Picosecond time-resolved photon antibunching measures nanoscale exciton motion and the true number of chromophores

G. J. Hedley, T. Schröder, et al.

Discover the groundbreaking picosecond time-resolved antibunching (psTRAB) technique that unveils nanoscale exciton motion and reveals the accurate count of chromophores in multichromophoric systems. This innovative research by Gordon J. Hedley and colleagues offers insights into exciton diffusion across multiple dimensions using DNA origami and conjugated polymer aggregates.

00:00

Playback language: English

Index

Abstract

This paper introduces picosecond time-resolved antibunching (psTRAB) to measure nanoscale exciton motion and the true number of chromophores in multichromophoric systems. By analyzing photon statistics with pulsed excitation, psTRAB distinguishes between photon antibunching arising from the particle-like nature of light and that resulting from exciton diffusion and annihilation. The method is validated using DNA origami structures with a known number of chromophores and applied to conjugated polymer aggregates, revealing details of exciton diffusion in one, two, and three dimensions.

Publisher

Nature Communications

Published On

Feb 26, 2021

Authors

Gordon J. Hedley, Tim Schröder, Florian Steiner, Theresa Eder, Felix J. Hofmann, Sebastian Bange, Dirk Laux, Sigurd Höger, Philip Tinnefeld, John M. Lupton, Jan Vogelsang

Related Publications

Explore these studies to deepen your understanding of the subject.

Business

Risk identification approaches and the number of risks identified: the use of work breakdown structure and business process

R. Kountur and M. R. Sari

Psychology

Do perceived control and time orientation mediate the effect of early life adversity on reproductive behaviour and health status? Insights from the European Value Study and the European Social Survey

B. C. Farkas, V. Chambon, et al.

Health and Fitness

Mediating effect of fat mass, lean mass, blood pressure and insulin resistance on the associations of accelerometer-based sedentary time and physical activity with arterial stiffness, carotid IMT and carotid elasticity in 1574 adolescents

A. O. Agbaje

Transportation

How has the Covid-19 pandemic affected wheelchair users? Time-series analysis of the number of railway passengers in Tokyo

Y. Arai, Y. Niwa, et al.

Listen, Learn & Level Up

Over 10,000 hours of research content in 25+ fields, available in 12+ languages.

No more digging through PDFs, just hit play and absorb the world's latest research in your language, on your time.

listen to research audio papers with researchbunny