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Title: Highly Efficient Perovskite Solar Modules by Scalable Fabrication and Interconnection Optimization

Journal Article · · ACS Energy Letters

To push perovskite solar cell (PSC) technology toward practical applications, large-area perovskite solar modules with multiple subcells need to be developed by fully scalable deposition approaches. Here, we demonstrate a deposition scheme for perovskite module fabrication with spray coating of a TiO2 electron transport layer (ETL) and blade coating of both a perovskite absorber layer and a spiro-OMeTAD-based hole transport layer (HTL). The TiO2 ETL remaining in the interconnection between subcells significantly affects the module performance. Reducing the TiO2 thickness changes the interconnection contact from a Schottky diode to ohmic behavior. Owing to interconnection resistance reduction, the perovskite modules with a 10 nm TiO2 layer show enhanced performance mainly associated with an improved fill factor. Finally, we demonstrate a four-cell MA0.7FA0.3PbI3 perovskite module with a stabilized power conversion efficiency (PCE) of 15.6% measured from an aperture area of ~10.36 cm2, corresponding to an active-area module PCE of 17.9% with a geometric fill factor of ~87.3%.

Research Organization:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1419411
Report Number(s):
NREL/JA-5900-70289
Journal Information:
ACS Energy Letters, Vol. 3, Issue 2; ISSN 2380-8195
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 117 works
Citation information provided by
Web of Science

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Cited By (19)

Toward High‐Throughput Texturing of Polymer Foils for Enhanced Light Trapping in Flexible Perovskite Solar Cells Using Roll‐to‐Roll Hot Embossing journal January 2020
Opportunities and challenges for tandem solar cells using metal halide perovskite semiconductors journal July 2018
Negligible‐Pb‐Waste and Upscalable Perovskite Deposition Technology for High‐Operational‐Stability Perovskite Solar Modules journal February 2019
Effects of temperature and coating speed on the morphology of solution-sheared halide perovskite thin-films journal January 2018
Wide-bandgap, low-bandgap, and tandem perovskite solar cells journal July 2019
Increasing markets and decreasing package weight for high-specific-power photovoltaics journal November 2018
Thin‐film solar cells exceeding 22% solar cell efficiency: An overview on CdTe-, Cu(In,Ga)Se 2 -, and perovskite-based materials journal December 2018
Novel approaches and scalability prospects of copper based hole transporting materials for planar perovskite solar cells journal January 2019
Morphology control of aligned carbon nanotube pins formed via patterned capillary densification journal January 2019
Highly Reproducible Large-Area Perovskite Solar Cell Fabrication via Continuous Megasonic Spray Coating of CH 3 NH 3 PbI 3 journal November 2018
A flexible back-contact perovskite solar micro-module journal January 2019
Solution‐Processable Perovskite Solar Cells toward Commercialization: Progress and Challenges journal April 2019
Environmental Profile of the Manufacturing Process of Perovskite Photovoltaics: Harmonization of Life Cycle Assessment Studies journal September 2019
Scalable Fabrication of Stable High Efficiency Perovskite Solar Cells and Modules Utilizing Room Temperature Sputtered SnO 2 Electron Transport Layer journal December 2018
Automated Scalable Spray Coating of SnO 2 for the Fabrication of Low‐Temperature Perovskite Solar Cells and Modules journal February 2020
Loss analysis in perovskite photovoltaic modules text January 2019
Dynamic Antisolvent Engineering for Spin Coating of 10 × 10 cm 2 Perovskite Solar Module Approaching 18% journal July 2019
Loss analysis in perovskite photovoltaic modules text January 2019
Loss Analysis in Perovskite Photovoltaic Modules journal September 2019

Figures / Tables (5)