TY - JOUR
T1 - Robust and Recyclable Substrate Template with an Ultrathin Nanoporous Counter Electrode for Organic-Hole-Conductor-Free Monolithic Perovskite Solar Cells
AU - Li, Ming Hsien
AU - Yang, Yu Syuan
AU - Wang, Kuo Chin
AU - Chiang, Yu Hsien
AU - Shen, Po Shen
AU - Lai, Wei Chih
AU - Guo, Tzung Fang
AU - Chen, Peter
N1 - Funding Information:
The authors are grateful to the research grant from the Ministry of Science and Technology (MOST 106-2119-M-006-017, MOST 106-2811-M-006-046, MOST 106-2119-M-006-027, and MOST 105-2119-M-006-004). P.C. thanks the financial support from the Top-Notch Project under the Headquarter of University Advancement at National Cheng Kung University, which is sponsored by the Ministry of Education, Taiwan, ROC. The funding from the Research Center for Energy Technology and Strategy (RCETS) and Advanced Optoelectronic Technology Center (AOTC), National Cheng Kung University is acknowledged.
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/12/6
Y1 - 2017/12/6
N2 - A robust and recyclable monolithic substrate applying all-inorganic metal-oxide selective contact with a nanoporous (np) Au:NiOx counter electrode is successfully demonstrated for efficient perovskite solar cells, of which the perovskite active layer is deposited in the final step for device fabrication. Through annealing of the Ni/Au bilayer, the nanoporous NiO/Au electrode is formed in virtue of interconnected Au network embedded in oxidized Ni. By optimizing the annealing parameters and tuning the mesoscopic layer thickness (mp-TiO2 and mp-Al2O3), a decent power conversion efficiency (PCE) of 10.25% is delivered. With mp-TiO2/mp-Al2O3/np-Au:NiOx as a template, the original perovskite solar cell with 8.52% PCE can be rejuvenated by rinsing off the perovskite material with dimethylformamide and refilling with newly deposited perovskite. A renewed device using the recycled substrate once and twice, respectively, achieved a PCE of 8.17 and 7.72% that are comparable to original performance. This demonstrates that the novel device architecture is possible to recycle the expensive transparent conducting glass substrates together with all the electrode constituents. Deposition of stable multicomponent perovskite materials in the template also achieves an efficiency of 8.54%, which shows its versatility for various perovskite materials. The application of such a novel NiO/Au nanoporous electrode has promising potential for commercializing cost-effective, large scale, and robust perovskite solar cells.
AB - A robust and recyclable monolithic substrate applying all-inorganic metal-oxide selective contact with a nanoporous (np) Au:NiOx counter electrode is successfully demonstrated for efficient perovskite solar cells, of which the perovskite active layer is deposited in the final step for device fabrication. Through annealing of the Ni/Au bilayer, the nanoporous NiO/Au electrode is formed in virtue of interconnected Au network embedded in oxidized Ni. By optimizing the annealing parameters and tuning the mesoscopic layer thickness (mp-TiO2 and mp-Al2O3), a decent power conversion efficiency (PCE) of 10.25% is delivered. With mp-TiO2/mp-Al2O3/np-Au:NiOx as a template, the original perovskite solar cell with 8.52% PCE can be rejuvenated by rinsing off the perovskite material with dimethylformamide and refilling with newly deposited perovskite. A renewed device using the recycled substrate once and twice, respectively, achieved a PCE of 8.17 and 7.72% that are comparable to original performance. This demonstrates that the novel device architecture is possible to recycle the expensive transparent conducting glass substrates together with all the electrode constituents. Deposition of stable multicomponent perovskite materials in the template also achieves an efficiency of 8.54%, which shows its versatility for various perovskite materials. The application of such a novel NiO/Au nanoporous electrode has promising potential for commercializing cost-effective, large scale, and robust perovskite solar cells.
UR - http://www.scopus.com/inward/record.url?scp=85037696777&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85037696777&partnerID=8YFLogxK
U2 - 10.1021/acsami.7b12367
DO - 10.1021/acsami.7b12367
M3 - Article
C2 - 29134795
AN - SCOPUS:85037696777
VL - 9
SP - 41845
EP - 41854
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 48
ER -