Dopant-Free Hole-Transport Materials Based on Methoxytriphenylamine-Substituted Indacenodithienothiophene for Solution-Processed Perovskite Solar Cells

1. Liu, X.
2. Zheng, X.
3. Wang, Y.
4. Chen, Z.
5. Yao, F.
6. Zhang, Q.
7. Fang, G.
8. Chen, Z.-K.
9. Huang, W.
10. Xu, Z.-X.