首页|Multifunctional organic semiconductor for dopant-free perovskite solar cells
Multifunctional organic semiconductor for dopant-free perovskite solar cells
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
? 2022Replacing the orthogonal molecular core in 2,2′,7,7′-Tetrakis[N,N-di(4-methoxyphenyl)amino]? 9,9′-spirobifluorene (spiro-OMeTAD) with π-conjugated functional group is a promising strategy for designing of dopant-free hole transport materials (HTMs) for perovskite solar cells (PSCs). Here, an organic molecule with 9-fluorenone core, namely TPA-9F (2,7-bis(4-(bis(4-methoxyphenyl)amino)phenyl)? 9 H-fluoren-9-one), which featuring with excellent intermolecualr and interlayer interaction, was successfully developed and applied in PSCs. It's found that TPA-9F shows multifunctional characteristics, such as close interlayer interaction with perovskite surface, strong hole transport capacity and hydrophobicity. As a result, mesoscopic n-i-p structured PSCs employing dopant-free TPA-9F as HTM exhibit a high efficiency of 18.40%, which is much higher than that using dopant-free spiro-OMeTAD (9.38%). This work demonstrate the great potential of π-conjugated functional group in designing efficient organic p-type semiconductors for dopant-free PSCs.
CarbonylLayer interaction. hole transport materialP-type semiconductorPerovskite
Sun Y.、Zhao C.、Zhang J.、Peng Y.、Hu L.、Kong F.、Ghadari R.
展开 >
Key Laboratory of Photovoltaic and Energy Conservation Materials Institute of Solid State Physics HIPS Chinese Academy of Sciences
Computational Chemistry Laboratory Department of Organic and Biochemistry Faculty of Chemistry University of Tabriz
NSTL
Elsevier
