Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (4): 20250324.doi: 10.7503/cjcu20250324
• Article • Previous Articles Next Articles
LIU Miaomiao1,2, FU Mengran1,2, GAO Die2, ZHANG Wanpeng1, LIANG Ying2, HE Yuanyuan3, ZHAO Qiaoqiao1(
), ZHAO Tingxing2(
), LI Hongbo2, DING Zicheng5, HAN Yanchun4(
)
Received:2025-10-31
Online:2026-04-10
Published:2026-01-10
Contact:
ZHAO Qiaoqiao, ZHAO Tingxing, HAN Yanchun
E-mail:18766192180@163.com;tingxingzhao@swust.edu.cn;ychan@ciac.ac.cn
Supported by:CLC Number:
TrendMD:
LIU Miaomiao, FU Mengran, GAO Die, ZHANG Wanpeng, LIANG Ying, HE Yuanyuan, ZHAO Qiaoqiao, ZHAO Tingxing, LI Hongbo, DING Zicheng, HAN Yanchun. Side-chain Engineering of “Bridging” Polymer Acceptors with Donor/Acceptor Dual Similarity for High-performance Ternary Organic Solar Cells[J]. Chem. J. Chinese Universities, 2026, 47(4): 20250324.
Fig.1 Chemical structures of D18, N3, BDT⁃C2C4 and BDT⁃C8(A), the normalized UV⁃Vis absorption spectra of neat film(B) and blend film(C), and energy levels of D18, N3, BDT⁃C2C4 and BDT⁃C8(D)
Fig.2 Contact angles of water(A) and ethylene glycol(B) on the surface of D18, N3, BDT⁃C2C4 and BDT⁃C8 films and the Flory⁃Huggins interaction parameter between PAs and D18/N3(C)
| Active layer | Voc/V | Jsc/(mA∙cm-2) | J | FF(%) | PCE(%) |
|---|---|---|---|---|---|
| D18∶N3 | 0.833 | 27.39 | 26.84 | 76.20 | 17.37 |
| D18∶N3∶BDT⁃C2C4 | 0.846 | 27.46 | 27.32 | 75.75 | 17.60 |
| D18∶N3∶BDT⁃C8 | 0.849 | 28.08 | 27.92 | 76.25 | 18.18 |
Table 1 Photovoltaic parameters of the OSCs based on different active layers
| Active layer | Voc/V | Jsc/(mA∙cm-2) | J | FF(%) | PCE(%) |
|---|---|---|---|---|---|
| D18∶N3 | 0.833 | 27.39 | 26.84 | 76.20 | 17.37 |
| D18∶N3∶BDT⁃C2C4 | 0.846 | 27.46 | 27.32 | 75.75 | 17.60 |
| D18∶N3∶BDT⁃C8 | 0.849 | 28.08 | 27.92 | 76.25 | 18.18 |
Fig.5 Hole⁃only(A) and electron⁃only mobilities(B) of the different active layers measured using the SCLC method, and comparison of the hole and electron mobilities and their ratios in different active layers(C)a. D18∶N3; b. D18∶N3∶BDT-C2C4; c. D18∶N3∶BDT-C8.
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