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High-Performance Inverted Perovskite Solar Cells Using DopedPoly(triarylamine) as the Hole Transport Layer

Penulis : Yawen Liu, [-]
Kontributor / Dosen Pembimbing :
  • Zhihai Liu,Eun-Cheol Lee
Jenis Koleksi : Jurnal elektronik
Tahun Terbit :
Penerbit : Kimia
Fakultas : Fakultas Matematika dan Ilmu Pengetahuan Alam
Subjek : Chemistry
Kata Kunci : perovskite solar cells, doping, stability, hole transport layer, CuSCN, CuI, PTAA
Sumber : ACSAppl.EnergyMater.XXXX, XXX, XXX?XXX
Staf Input/Edit : Latifa Noor  
File : 1 file
Tanggal Input : 11 Mar 2019

Organolead trihalide perovskite materials have attractedconsiderable interest because of their successful application in fabricatinghigh-efficiency photovoltaic cells. Charge transport layers play a significant rolein improving the efficiency and stability of perovskite solar cells (PSCs). In thiswork, we investigated the p-type doping effect of the poly(triarylamine)(PTAA) layer on the performance of PSCs by using three dopants. We observethat doping copper(I) thiocyanate (CuSCN) into PTAA led to a higherperformance improvement for the PSCs than the use of copper(I) iodide (CuI)or lithium salt (Li-TFSI) as the dopant. The power conversion efficiency (PCE)of the PSCs significantly improved from 14.22% to 18.16% upon doping 2.0 wt% CuSCN with simultaneously enhanced open-circuit voltage, short-circuitcurrent density, andfill factor. The long-term stability of the PSCs was alsoimproved with significantly reduced PCE degradation (from 79% to 25%) after200 h. Our results provide a simple method to improve the performance of planar PSCs by adding dopants into PTAA.

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