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Title: Perovskite Solar Cells: Addressing Low Cost, High Efficiency, and Reliability Through Novel Hole-Transport Materials

Abstract

The ultimate goal of this project is to develop low-cost and scalable organic-based hole transport materials that will lead to thin film perovskite solar cells with high efficiencies (>25%) and long lifetimes (>20 years). A very important component of a perovskite solar cell is the hole transport layer (HTL). This layer is also generally the most expensive and problematic component of the device. Currently the state-of-the-art HTL is based on a lithium salt doped aromatic amine termed N2,N2,N2′,N2′,N7,N7,N7′,N7′-octakis(4-methoxyphenyl)-9,9′-spirobi[9H-fluorene]-2,2′,7,7′-tetramine (spiro-OMeTAD) that is very difficult to prepare with no paths for becoming cost effective at high volume. This project will directly prepare perovskite solar cells more easily commercialized by designing and preparing new HTL materials with properties that address the current bottlenecks, such as cost, tunable conductivity and energy levels, hydrophobicity, Li free dopants, and stability to name a few. We have preliminary results from new cost-effective HTLs and dopants that have led to high efficiency (>19%) and long operating lifetime devices without encapsulation – significantly improved over spiro-OMeTAD based devices prepared in our labs as controls. We will focus on using the lessons learned from that first departure from the norm to design even more ideal and scalable HTLs. We believemore » the outcomes of this proposal will lead to a substantial impact for the perovskite community to develop a low cost, scalable and high performing HTL. This will be a collaborative effort where our synthetic chemists will perform HTL design, chemical synthesis, and materials characterization, while our device engineers will perform device physics, fabrication/processing, and characterization.« less

Authors:
ORCiD logo [1]
  1. Colorado School of Mines, Golden, CO (United States)
Publication Date:
Research Org.:
Colorado School of Mines, Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Contributing Org.:
Colorado School of Mines NREL
OSTI Identifier:
1559859
Report Number(s):
RPPR-1 _401271_123117
DOE Contract Number:  
EE0008174
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; perovskite solar cells, organic hole transport materials

Citation Formats

Sellinger, Alan. Perovskite Solar Cells: Addressing Low Cost, High Efficiency, and Reliability Through Novel Hole-Transport Materials. United States: N. p., 2019. Web. doi:10.2172/1559859.
Sellinger, Alan. Perovskite Solar Cells: Addressing Low Cost, High Efficiency, and Reliability Through Novel Hole-Transport Materials. United States. doi:10.2172/1559859.
Sellinger, Alan. Tue . "Perovskite Solar Cells: Addressing Low Cost, High Efficiency, and Reliability Through Novel Hole-Transport Materials". United States. doi:10.2172/1559859. https://www.osti.gov/servlets/purl/1559859.
@article{osti_1559859,
title = {Perovskite Solar Cells: Addressing Low Cost, High Efficiency, and Reliability Through Novel Hole-Transport Materials},
author = {Sellinger, Alan},
abstractNote = {The ultimate goal of this project is to develop low-cost and scalable organic-based hole transport materials that will lead to thin film perovskite solar cells with high efficiencies (>25%) and long lifetimes (>20 years). A very important component of a perovskite solar cell is the hole transport layer (HTL). This layer is also generally the most expensive and problematic component of the device. Currently the state-of-the-art HTL is based on a lithium salt doped aromatic amine termed N2,N2,N2′,N2′,N7,N7,N7′,N7′-octakis(4-methoxyphenyl)-9,9′-spirobi[9H-fluorene]-2,2′,7,7′-tetramine (spiro-OMeTAD) that is very difficult to prepare with no paths for becoming cost effective at high volume. This project will directly prepare perovskite solar cells more easily commercialized by designing and preparing new HTL materials with properties that address the current bottlenecks, such as cost, tunable conductivity and energy levels, hydrophobicity, Li free dopants, and stability to name a few. We have preliminary results from new cost-effective HTLs and dopants that have led to high efficiency (>19%) and long operating lifetime devices without encapsulation – significantly improved over spiro-OMeTAD based devices prepared in our labs as controls. We will focus on using the lessons learned from that first departure from the norm to design even more ideal and scalable HTLs. We believe the outcomes of this proposal will lead to a substantial impact for the perovskite community to develop a low cost, scalable and high performing HTL. This will be a collaborative effort where our synthetic chemists will perform HTL design, chemical synthesis, and materials characterization, while our device engineers will perform device physics, fabrication/processing, and characterization.},
doi = {10.2172/1559859},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}