NiO_{x}/Spiro Hole Transport Bilayers for Stable Perovskite Solar Cells with Efficiency Exceeding 21%

Renjie Li; Pengyang Wang; Bingbing Chen; Xinghua Cui; Yi Ding; Yuelong Li; Dekun Zhang; Ying Zhao; Xiaodan Zhang

doi:10.1021/acsenergylett.9b02112

journal article·2020-01-10

NiO_x/Spiro Hole Transport Bilayers for Stable Perovskite Solar Cells with Efficiency Exceeding 21%

Renjie Li, Pengyang Wang, Bingbing Chen, Xinghua Cui, Yi Ding, Yuelong Li, Dekun Zhang, Ying Zhao, Xiaodan Zhang

ACS Energy Letters· Volume 5· Issue 1

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Source abstract

Abstract

Hole transport layers (HTLs) play a crucial role in the efficiency and stability of perovskite solar cells (PSCs). The most efficient PSCs based on spiro-OMeTAD (Spiro) generally have stability problems. Here, NiOx/Spiro HTL has been designed and implemented by combining the advantages of these two films. The results indicated that a device based on a NiOx/Spiro HTL has faster hole extraction ability and better energy alignment than that of a pure Spiro device, thus improving the PCE from 19.8 to 21.66%. Compared with the 60% initial efficiency of Spiro-based devices, the NiOx/Spiro bilayer devices have higher stability and maintain 90% initial efficiency over 1200 h. In this work, NiOx is applied to perovskite devices with N–I–P configuration, which provides a possible mitigation strategy to reduce the VOC deficit for efficient and stable devices.

Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Quantum Dots Synthesis And Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Photoelectronic Thin Film Devices and Technology of Nankai University, Tianjin 300350, People’s Republic of China

Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin 300350, People’s Republic of China

Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China

Renewable Energy Conversion and Storage Center of Nankai University, Tianjin 300072, China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities, Nankai University · Tianjin Science and Technology Project · Overseas Expertise Introduction Project for Discipline Innovation of Higher Education of China

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