Robust interface engineering for high-performance and stable inverted planar perovskite solar cells via both poly(2-ethyl-2-oxazoline) nanodots

Xu, Lei-ming; Chen, Wei; He, Zhu-bing

10.1364/PV.2016.PM4B.4

2016

Optical Nanostructures and Advanced Materials for Photovoltaics, PV 2016

Leipzig, Germany

OSA - The Optical Society

Low temperature, stable and facile solution processes are the typical characters in mass production of next generation solar cells, especially for flexible consumable electronics. In this work, we employed a low cost, chemical stable, solution processing polymer, thermal treatment free poly(2-ethyl-2-oxazoline) (PEOz) nanodots, as an efficient interfacial layer on top of [6,6]-phenyl-C61-butyricacid methyl (PCBM) to fabricate inverted planar heterojunction (PHJ) perovskite solar cells. The performance of perovskite solar cells increased from 9.01% to 14.52% after inserting a thin layer of PEOz between PCBM and Ag. It was demonstrated that PEOz can effectively reduce the work function of silver electrode to form an ohmic contact between PCBM and silver, which dramatically enhance the electron extraction capability from PCBM to silver electrode. This study pays a way for the large scale fabrication of high efficiency perovskite thin film solar cells via low cost solution processing at low temperatures.
© OSA 2016.

第一 ; 通讯

EI

20171403545080

Cell engineering ; Electrodes ; Flexible electronics ; Heterojunctions ; Low temperature production ; Nanodots ; Nanostructured materials ; Nanostructures ; Ohmic contacts ; Perovskite ; Perovskite solar cells ; Polymer solar cells ; Silver ; Temperature

Biomedical Engineering:461.1 ; Minerals:482.2 ; Precious Metals:547.1 ; Thermodynamics:641.1 ; Solar Cells:702.3 ; Semiconductor Devices and Integrated Circuits:714.2 ; Electronic Equipment, General Purpose and Industrial:715 ; Nanotechnology:761 ; Solid State Physics:933

EV Compendex

Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG), South University of Science and Technology of China, No. 1088, Xueyuan Rd., Shenzhen, Guangdong,, China

Xu, Lei-ming,Chen, Wei,He, Zhu-bing. Robust interface engineering for high-performance and stable inverted planar perovskite solar cells via both poly(2-ethyl-2-oxazoline) nanodots[C]:OSA - The Optical Society,2016.