High-efficiency perovskite solar cells with long operation lifetime (Presentation Recording)

Chenchen Yang; Weiran Cao; Nathan T. Shewmon; Jiangeng Xue

doi:10.1117/12.2188564

5 October 2015 High-efficiency perovskite solar cells with long operation lifetime (Presentation Recording)

Chenchen Yang, Weiran Cao, Nathan T. Shewmon, Jiangeng Xue

Proceedings Volume 9567, Organic Photovoltaics XVI; 956717 (2015) https://doi.org/10.1117/12.2188564
Event: SPIE Organic Photonics + Electronics, 2015, San Diego, California, United States

Abstract

Perovskite solar cells have attracted tremendous attention for their outstanding energy conversion efficiency in the past few years. Due to the development of active materials, device architectures and processing methods, power conversion efficiency (PCE) of perovskite solar cells is now growing up to 20%. Beyond the efficiency, to get rid of Lead, the widely-used toxic element in the perovskite layers, as well as to improve the device/module operation lifetime are the other two major challenges that need to be solved before their commercialization. Here, we apply a layer of ZnO nanoparticles onto to a planar perovskite solar cell, which can not only improve the electron transport/extraction in the devices but highly improve the device operation lifetime. The devices were fabricated by spin-coating a poly(3,4-ethylenedioxythuiphene):polystyrene sulfonate (PEDOT:PSS) layer onto a glass/ITO substrate, followed by the deposition of a perovskite layer from a lead chloride (PbCl2) and methyl ammonium iodine (MAI) blend precursor solution. After that, a layer of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) and a layer of ZnO nanoparticles were successively deposited as the electron transport layers, and the device was finished by thermally evaporation Al as the cathode. Such planar perovskite solar cell with ZnO NPs exhibits a maximum PCE of up to 14.1%, which is about 35% higher than that without the ZnO layer. Moreover, the device remains 80% of its initial PCE after 2500 hours under 1 sum illumination, majorly due to the protection of ZnO layer that prevent the diffusion of oxygen and moisture molecules into the perovskite layers as revealed by x-ray photoelectron spectroscopy studies.

Conference Presentation

Citation Download Citation

Chenchen Yang, Weiran Cao, Nathan T. Shewmon, and Jiangeng Xue "High-efficiency perovskite solar cells with long operation lifetime (Presentation Recording)", Proc. SPIE 9567, Organic Photovoltaics XVI, 956717 (5 October 2015); https://doi.org/10.1117/12.2188564

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Perovskite

Solar cells

Zinc oxide

Nanoparticles

Electron transport

Lead

Aluminum

Show All Keywords

Keywords/Phrases

Search In:

Publication Years