Li Jia-Sen, Liang Chun-Jun, Ji Chao, Gong Hong-Kang, Song Qi, Zhang Hui-Min, Liu Ning. Improvement in performance of carbon-based perovskite solar cells by adding 1, 8-diiodooctane into hole transport layer 3-hexylthiopheneJ. Acta Physica Sinica, 2021, 70(19): 198403. DOI: 10.7498/aps.70.20210586