N,N-Di-para-methylthiophenylamine-Substituted (2-Ethylhexyl)-9H-Carbazole: A Simple, Dopant-Free Hole-Transporting Material for Planar Perovskite Solar Cells

1. Xu, L.
2. Huang, P.
3. Zhang, J.
4. Jia, X.
5. Ma, Z.
6. Sun, Y.
7. Zhou, Y.
8. Yuan, N.-Y.
9. Ding, J.-N.