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Table 1 A summarization table of Δd, ΔP, ΔE, and Δλ at different set currents by tunneling theory

From: Exploring the Intrinsic Piezofluorochromic Mechanism of TPE-An by STS Technique

	ΔI ₂₁	ΔI ₃₁	ΔI ₄₁	ΔI ₅₁
Δd (Å)	−0.12	−0.25	−0.35	−0.38
ΔP (Pa)	1.38 × 10⁴	2.90 × 10⁴	4.05 × 10⁴	4.38 × 10⁴
ΔE _g (eV)	−0.57	−0.81	−0.87	−1.11
Δλ (nm)	26.93	40.26	43.81	59.01

Δ I ₂₁ = I ₂ − I ₁, Δ I ₃₁ = I ₃ − I ₁, ∆I ₄₁ = I ₄ − I ₁, ∆I ₅₁ = I ₅ − I ₁
d is the tip-surface distance, P is the pressure on the sample’s surface, Eg is the HOMO-LUMO gap, and λ is the wavelength of PL peak

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