Modeling ligand crosslinking for interlocking quantum dots in thin-films

Abstract

When integrating quantum dots (QDs) into thin-film photonic through solution process, dissolution of QD films should be prevented against exposure to various solvents in the post-processing steps. Amongst various approaches,...

Nondestructive Photopatterning of Heavy‐Metal‐Free Quantum Dots

“…The probability of a single LiXer to have more than two photoactivated azide units (η 1 ) can be simply estimated from η Phl using $\[{\eta _1} = \sum\nolimits_{i = 2}^n {{}_n{C_i} \times {{({\eta _{{\rm{Phl}}}})}^i} \times {{(1 - {\eta _{{\rm{Phl}}}})}^{n - i}}} \]$ (Figure 2E). The ability of these photoactive LiXers to crosslink the ligands of different QDs (η 2 ) can be estimated using a kinetic Monte Carlo simulation, [ 47 ] which breaks down the reaction kinetics of the crosslinking process for different LiXers in different physical dimensions (Figure 2F;Figures S15 and 16, Supporting Information). It was found that owing to the structural bulkiness, n ‐LiXers with higher n are more likely to reside on the outer periphery of the QD ligands, and this effect is even more pronounced for sterically engineered IP‐ n ‐LiXers.…”