Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (1): 20250325.doi: 10.7503/cjcu20250325
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LI Rui, LIU Junjun, TAO Songyuan, ZHU Zhicheng, YANG Bai(
)
Received:2025-10-31
Online:2026-01-10
Published:2025-12-06
Contact:
YANG Bai
E-mail:byangchem@jlu.edu.cn
Supported by:CLC Number:
TrendMD:
LI Rui, LIU Junjun, TAO Songyuan, ZHU Zhicheng, YANG Bai. Influence of Average Functionality of Precursors and Crosslink-enhanced Emission Effect on Solid-state Luminescence Performance of Carbonized Polymer Dots[J]. Chem. J. Chinese Universities, 2026, 47(1): 20250325.
| Sample | τ1/ns | Percent(%) | τ2 /ns | Percent(%) | τAvg/ns |
|---|---|---|---|---|---|
| CPDs⁃NH2 | 1.65 | 58.62 | 7.61 | 41.38 | 4.12 |
| CPDs⁃2NH2 | 3.19 | 68.53 | 9.56 | 31.47 | 5.19 |
| CPDs⁃3NH2 | 3.31 | 57.56 | 10.00 | 42.44 | 6.15 |
Table 1 PL lifetime of CPDs-NH2, CPDs-2NH2 and CPDs-3NH2 powder
| Sample | τ1/ns | Percent(%) | τ2 /ns | Percent(%) | τAvg/ns |
|---|---|---|---|---|---|
| CPDs⁃NH2 | 1.65 | 58.62 | 7.61 | 41.38 | 4.12 |
| CPDs⁃2NH2 | 3.19 | 68.53 | 9.56 | 31.47 | 5.19 |
| CPDs⁃3NH2 | 3.31 | 57.56 | 10.00 | 42.44 | 6.15 |
| Sample | τ1/ms | Percent(%) | τ2/ms | Percent(%) | τ3/ms | Percent(%) | τAvg/ms |
|---|---|---|---|---|---|---|---|
| CPDs⁃NH2 | 21.12 | 22.96 | 120.50 | 44.98 | 422.50 | 32.06 | 194.50 |
| CPDs⁃2NH2 | 69.51 | 16.90 | 273.50 | 54.21 | 717.40 | 28.90 | 367.34 |
| CPDs⁃3NH2 | 70.78 | 10.41 | 309.20 | 50.47 | 891.90 | 39.12 | 512.33 |
Table 2 RTP lifetime of CPDs-NH2, CPDs-2NH2 and CPDs-3NH2 powder
| Sample | τ1/ms | Percent(%) | τ2/ms | Percent(%) | τ3/ms | Percent(%) | τAvg/ms |
|---|---|---|---|---|---|---|---|
| CPDs⁃NH2 | 21.12 | 22.96 | 120.50 | 44.98 | 422.50 | 32.06 | 194.50 |
| CPDs⁃2NH2 | 69.51 | 16.90 | 273.50 | 54.21 | 717.40 | 28.90 | 367.34 |
| CPDs⁃3NH2 | 70.78 | 10.41 | 309.20 | 50.47 | 891.90 | 39.12 | 512.33 |
| Sample | Mass fraction(%) | |||
|---|---|---|---|---|
| C | O | H | N | |
| CPDs⁃NH2 | 48.57 | 45.14 | 5.89 | 0.40 |
| CPDs⁃2NH2 | 49.10 | 43.50 | 6.09 | 1.31 |
| CPDs⁃3NH2 | 48.39 | 42.99 | 6.29 | 2.33 |
Table 3 Elemental analysis of CPDs-NH2, CPDs-2NH2 and CPDs-3NH2
| Sample | Mass fraction(%) | |||
|---|---|---|---|---|
| C | O | H | N | |
| CPDs⁃NH2 | 48.57 | 45.14 | 5.89 | 0.40 |
| CPDs⁃2NH2 | 49.10 | 43.50 | 6.09 | 1.31 |
| CPDs⁃3NH2 | 48.39 | 42.99 | 6.29 | 2.33 |
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