Статья

Strong-bonding hole-transport layers reduce ultraviolet degradation of perovskite solar cells

Chengbin FeiDepartment of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USAAnastasia KuvayskayaDepartment of Chemistry, Colorado School of Mines, Golden, CO 80401, USAXiaoqiang ShiDepartment of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USAMengru WangDepartment of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USAZhifang ShiDepartment of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USAHaoyang JiaoDepartment of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USATimothy J. SilvermanMaterials, Chemicals, and Computational Science Directorate, National Renewable Energy Laboratory, Golden, CO 80401, USAMichael Owen‐BelliniMaterials, Chemicals, and Computational Science Directorate, National Renewable Energy Laboratory, Golden, CO 80401, USAYifan DongChemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USAYeming XianDepartment of Physics and Astronomy, University of Toledo, Toledo, OH 43606, USARebecca A. ScheidtChemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USAXiaoming WangDepartment of Physics and Astronomy, University of Toledo, Toledo, OH 43606, USAGuang YangDepartment of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USAHangyu GuDepartment of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USANengxu LiDepartment of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USAConnor J. DolanDepartment of Nanoengineering, University of California San Diego, La Jolla, CA 92093, USAZhewen J. D. DengDepartment of Nanoengineering, University of California San Diego, La Jolla, CA 92093, USADeniz N. CakanDepartment of Nanoengineering, University of California San Diego, La Jolla, CA 92093, USADavid P. FenningDepartment of Nanoengineering, University of California San Diego, La Jolla, CA 92093, USAYanfa YanDepartment of Physics and Astronomy, University of Toledo, Toledo, OH 43606, USAMatthew C. BeardChemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USALaura T. SchelhasMaterials, Chemicals, and Computational Science Directorate, National Renewable Energy Laboratory, Golden, CO 80401, USAAlan SellingerChemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USAJinsong HuangDepartment of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA

2024en

ABI

Аннотация

The light-emitting diodes (LEDs) used in indoor testing of perovskite solar cells do not expose them to the levels of ultraviolet (UV) radiation that they would receive in actual outdoor use. We report degradation mechanisms of p-i-n-structured perovskite solar cells under unfiltered sunlight and with LEDs. Weak chemical bonding between perovskites and polymer hole-transporting materials (HTMs) and transparent conducting oxides (TCOs) dominate the accelerated A-site cation migration, rather than direct degradation of HTMs. An aromatic phosphonic acid, [2-(9-ethyl-9H-carbazol-3-yl)ethyl]phosphonic acid (EtCz3EPA), enhanced bonding at the perovskite/HTM/TCO region with a phosphonic acid group bonded to TCOs and a nitrogen group interacting with lead in perovskites. A hybrid HTM of EtCz3EPA with strong hole-extraction polymers retained high efficiency and improved the UV stability of perovskite devices, and a champion perovskite minimodule-independently measured by the Perovskite PV Accelerator for Commercializing Technologies (PACT) center-retained operational efficiency of >16% after 29 weeks of outdoor testing.

Перевод пока недоступен

Идентификаторы

DOI: 10.1126/science.adi4531

Цитирования и источники

Цитирований: 4Использованных источников: 0

Показатели — AkademScholar