1. Size – limitation for J-aggregates using confinement
Conditions for perfect 2D J-aggregation by self-assembly
and efficient FRET
Not necessary
Water (or other protic, polar solvents). Water is, however, the most favourable solvent in most cases
Pre-formed crit. Jagg nuclei in solution
Inherent molecular structure favouring J-aggregation
Hours for final J-aggregate growth
PAMAM, Dendrons etc.
Mesopores or macropores
Necessary
Rigidized surfaces
Size – limitation for J-aggregates using confinement
Surface states allowing formation of crit. nuclei geometrically
Cooperativity to eliminate defects by pi-interactions
Adsorptive surface states for M,D (and crit. nuclei if already present)
Charge interactions allowing molecules to approach such surface states
Highly ordered surfaces to enable cooperative 2D-growth without defects
Some seconds to minutes for diffusional growth of Jaggs from M and D

2. Potential Advantages of CSEM patent US 9238582 granted Jan 19, 2016
for backlight display panels
vs. st.o.a. QDEF July 2017
Cheaper large-area production roll to roll
More energy efficient % re-emission
Non toxic QD Cd-free feasible
Brighter FRET enhancement 10 fold
Higher contrast /color saturation less cross-talk between spectra
Flexible panels thin transparent polyester films
Ecological production aq. solutions, Silos
Existing production technologies ink-jet functionalization
Ecological and cheap disposal of waste no toxicity problems
Mechanical robustness Encapsulation
High storage stability (min. 5 years) Tested at R.T.
Light-stability increases by factor 103 due to PVA, mesopores and FRET.
CSEM devices show the highest light-stability of J-aggregates and QD in air ever observed.
However, encapsulation to avoid oxygen and moisture is still necessary to ensure
stability of such devices for lighting- and display applications as with all commercial QD devices where encapsulation is state of art….
Dots: 20 m diam.