Vertical TiO2 Nanorods as a Medium for Durable and High Efficiency Perovskite Solar Modules

Perovskite solar cells employing CH3NH3PbI3-xClx active layers show power conversion efficiency (PCE) as high as 20% in single cells and 13% in large area modules. However, their operational stability has often been limited due to degradation of the CH3NH3PbI3-xClx active layer. Here, we report a pe...

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Main Authors:	Azhar, Fakharuddin, Rajan, Jose, Francesco, Di Giacomo, Alessandro, L. Palma, Fabio, Matteocci, Irfan, Ahmed, Stefano, Razza, Alessandra, D'Epifanio, Silvia, Licoccia, Jamil, Ismail, Aldo, Di Carlo, Thomas, M. Brown
Format:	Article
Language:	English
Published:	American Chemical Society 2015
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/9542/ http://umpir.ump.edu.my/id/eprint/9542/ http://umpir.ump.edu.my/id/eprint/9542/ http://umpir.ump.edu.my/id/eprint/9542/1/Vertical%20TiO2%20Nanorods%20as%20a%20Medium%20for%20Durable%20and%20High%20Efficiency%20Perovskite%20Solar%20Modules.pdf

id	ump-9542
recordtype	eprints
spelling	ump-95422018-02-08T01:24:08Z http://umpir.ump.edu.my/id/eprint/9542/ Vertical TiO2 Nanorods as a Medium for Durable and High Efficiency Perovskite Solar Modules Azhar, Fakharuddin Rajan, Jose Francesco, Di Giacomo Alessandro, L. Palma Fabio, Matteocci Irfan, Ahmed Stefano, Razza Alessandra, D'Epifanio Silvia, Licoccia Jamil, Ismail Aldo, Di Carlo Thomas, M. Brown Q Science (General) Perovskite solar cells employing CH3NH3PbI3-xClx active layers show power conversion efficiency (PCE) as high as 20% in single cells and 13% in large area modules. However, their operational stability has often been limited due to degradation of the CH3NH3PbI3-xClx active layer. Here, we report a perovskite solar module (PSM, best and av. PCE 10.5% and 8.1%), which employs solution grown TiO2 nanorods (NRs) as electron transport layer, that showed an increase in performance (~5%) even after shelf life investigation for 2500 h. A crucial issue on the module fabrication was the patterning of the TiO2 NRs, which was solved by interfacial engineering during the growth process and using an optimized laser pulse for patterning. A shelf life comparison with PSMs built on TiO2 nanoparticles (NP, best & av. PCE ~7.9% & 5.5%) of similar thickness and on compact TiO2 layer (CL, best & av. PCE 5.8% & 4.9%) shows, in contrast to that observed for NR PSMs, that PCE in NP and CL PSMs dropped by ~50 and ~90%, respectively. This is due to the fact that the CH3NH3PbI3-xClx active layer shows superior phase stability when incorporated in devices with TiO2 NR scaffolds. American Chemical Society 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9542/1/Vertical%20TiO2%20Nanorods%20as%20a%20Medium%20for%20Durable%20and%20High%20Efficiency%20Perovskite%20Solar%20Modules.pdf Azhar, Fakharuddin and Rajan, Jose and Francesco, Di Giacomo and Alessandro, L. Palma and Fabio, Matteocci and Irfan, Ahmed and Stefano, Razza and Alessandra, D'Epifanio and Silvia, Licoccia and Jamil, Ismail and Aldo, Di Carlo and Thomas, M. Brown (2015) Vertical TiO2 Nanorods as a Medium for Durable and High Efficiency Perovskite Solar Modules. ACS Nano, 9 (8). pp. 8420-8429. ISSN 1936-0851 http://dx.doi.org/10.1021/acsnano.5b03265 DOI: 10.1021/acsnano.5b03265
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Azhar, Fakharuddin Rajan, Jose Francesco, Di Giacomo Alessandro, L. Palma Fabio, Matteocci Irfan, Ahmed Stefano, Razza Alessandra, D'Epifanio Silvia, Licoccia Jamil, Ismail Aldo, Di Carlo Thomas, M. Brown Vertical TiO2 Nanorods as a Medium for Durable and High Efficiency Perovskite Solar Modules
description	Perovskite solar cells employing CH3NH3PbI3-xClx active layers show power conversion efficiency (PCE) as high as 20% in single cells and 13% in large area modules. However, their operational stability has often been limited due to degradation of the CH3NH3PbI3-xClx active layer. Here, we report a perovskite solar module (PSM, best and av. PCE 10.5% and 8.1%), which employs solution grown TiO2 nanorods (NRs) as electron transport layer, that showed an increase in performance (~5%) even after shelf life investigation for 2500 h. A crucial issue on the module fabrication was the patterning of the TiO2 NRs, which was solved by interfacial engineering during the growth process and using an optimized laser pulse for patterning. A shelf life comparison with PSMs built on TiO2 nanoparticles (NP, best & av. PCE ~7.9% & 5.5%) of similar thickness and on compact TiO2 layer (CL, best & av. PCE 5.8% & 4.9%) shows, in contrast to that observed for NR PSMs, that PCE in NP and CL PSMs dropped by ~50 and ~90%, respectively. This is due to the fact that the CH3NH3PbI3-xClx active layer shows superior phase stability when incorporated in devices with TiO2 NR scaffolds.
format	Article
author	Azhar, Fakharuddin Rajan, Jose Francesco, Di Giacomo Alessandro, L. Palma Fabio, Matteocci Irfan, Ahmed Stefano, Razza Alessandra, D'Epifanio Silvia, Licoccia Jamil, Ismail Aldo, Di Carlo Thomas, M. Brown
author_facet	Azhar, Fakharuddin Rajan, Jose Francesco, Di Giacomo Alessandro, L. Palma Fabio, Matteocci Irfan, Ahmed Stefano, Razza Alessandra, D'Epifanio Silvia, Licoccia Jamil, Ismail Aldo, Di Carlo Thomas, M. Brown
author_sort	Azhar, Fakharuddin
title	Vertical TiO2 Nanorods as a Medium for Durable and High Efficiency Perovskite Solar Modules
title_short	Vertical TiO2 Nanorods as a Medium for Durable and High Efficiency Perovskite Solar Modules
title_full	Vertical TiO2 Nanorods as a Medium for Durable and High Efficiency Perovskite Solar Modules
title_fullStr	Vertical TiO2 Nanorods as a Medium for Durable and High Efficiency Perovskite Solar Modules
title_full_unstemmed	Vertical TiO2 Nanorods as a Medium for Durable and High Efficiency Perovskite Solar Modules
title_sort	vertical tio2 nanorods as a medium for durable and high efficiency perovskite solar modules
publisher	American Chemical Society
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/9542/ http://umpir.ump.edu.my/id/eprint/9542/ http://umpir.ump.edu.my/id/eprint/9542/ http://umpir.ump.edu.my/id/eprint/9542/1/Vertical%20TiO2%20Nanorods%20as%20a%20Medium%20for%20Durable%20and%20High%20Efficiency%20Perovskite%20Solar%20Modules.pdf
first_indexed	2023-09-18T22:08:13Z
last_indexed	2023-09-18T22:08:13Z
_version_	1777414851036971008

Vertical TiO2 Nanorods as a Medium for Durable and High Efficiency Perovskite Solar Modules

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