Thermal and Environmental Stability of Semi‐Transparent Perovskite Solar Cells for Tandems Enabled by a Solution‐Processed Nanoparticle Buffer Layer and Sputtered ITO Electrode

Bush, Kevin A.; Bailie, Colin D.; Chen, Ye; Bowring, Andrea R.; Wang, Wei; Ma, Wen; Leijtens, Tomas; Moghadam, Farhad; McGehee, Michael D.

doi:10.1002/adma.201505279

Cited by 450 publications

(426 citation statements)

References 41 publications

Supporting

Mentioning

417

Contrasting

Unclassified

Order By: Relevance

“…In addition to these observations, a recent study by Bush et al demonstrates that AZO can be used together with ITO top contacts for semi-transparent p-i-n perovskite solar cells with enhanced thermal stability. [ 34 ] …”

Section: Resultsmentioning

confidence: 99%

Improved Performance and Reliability of p‐i‐n Perovskite Solar Cells via Doped Metal Oxides

Savva

Burgués‐Ceballos

Choulis

2016

Advanced Energy Materials

View full text Add to dashboard Cite

Perovskite photovoltaics (PVs) have attracted attention because of their excellent power conversion efficiency (PCE). Critical issues related to large‐area PV performance, reliability, and lifetime need to be addressed. Here, it is shown that doped metal oxides can provide ideal electron selectivity, improved reliability, and stability for perovskite PVs. This study reports p‐i‐n perovskite PVs with device areas ranging from 0.09 cm2 to 0.5 cm2 incorporating a thick aluminum‐doped zinc oxide (AZO) electron selective contact with hysteresis‐free PCE of over 13% and high fill factor values in the range of 80%. AZO provides suitable energy levels for carrier selectivity, neutralizes the presence of pinholes, and provides intimate interfaces. Devices using AZO exhibit an average PCE increase of over 20% compared with the devices without AZO and maintain the high PCE for the larger area devices reported. Furthermore, the device stability of p‐i‐n perovskite solar cells under the ISOS‐D‐1 is enhanced when AZO is used, and maintains 100% of the initial PCE for over 1000 h of exposure when AZO/Au is used as the top electrode. The results indicate the importance of doped metal oxides as carrier selective contacts to achieve reliable and high‐performance long‐lived large‐area perovskite solar cells.

show abstract

Section: Resultsmentioning

confidence: 99%

Improved Performance and Reliability of p‐i‐n Perovskite Solar Cells via Doped Metal Oxides

Savva

Burgués‐Ceballos

Choulis

2016

Advanced Energy Materials

View full text Add to dashboard Cite

show abstract

“…Simultaneously, the Si solar cells have dominated the photovoltaic markets for a long time, and the PCE record of the single-junction Si solar cell has reached 26.6% [8], but the relatively high manufactur-ing cost limits their wider applications. In recent years, the perovskite/Si tandem solar cells [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] have attracted increasing interest as they possess great commercial possibility in fabricating high-performance solar cells via the cost-effective pathway.…”

Section: Introductionmentioning

confidence: 99%

“…For the four-terminal perovskite/ Si devices assembled by a perovskite top cell and Si bottom cell, many efforts were dedicated to search for an appropriate transparent electrode to replace the opaque metal rear contact normally used in PSCs. In most reports [17][18][19][20][21][22][23][24][25][26], the sputtered transparent-conductive-oxide (especially ITO) rear electrode has been commonly used, and the record overall efficiency of 26.4% has been achieved in the four-terminal devices with the perovskite top cell using the ITO/Au-finger electrode [18]. However, the sputtered ITO without postannealing (>200°C) treatment usually shows the suboptimal conductivity, and the high kinetic energy of sputtered particles tends to damage the underlying spiro-OMeTAD or fullerene layers [19]; thus, it is essential to increase the thickness (or add the finger electrodes) to compensate the resistive loss and deposit the buffer layer to protect the organic charge transport layers [18,20].…”

Section: Introductionmentioning

confidence: 99%

Efficient Semitransparent Perovskite Solar Cells Using a Transparent Silver Electrode and Four-Terminal Perovskite/Silicon Tandem Device Exploration

Chen

Pang

Zhang

et al. 2018

Journal of Nanomaterials

View full text Add to dashboard Cite

Four-terminal tandem solar cells employing a perovskite top cell and crystalline silicon (Si) bottom cell offer a simpler pathway to surpass the efficiency limit of market-leading single-junction silicon solar cells. To obtain cost-effective top cells, it is crucial to develop transparent conductive electrodes with low parasitic absorption and manufacturing cost. The commonly used indium tin oxide (ITO) shows some drawbacks, like the increasing prices and high-energy magnetron sputtering process. Transparent metal electrodes are promising candidates owing to the simple evaporation process, facile process conditions, and high conductivity, and the cheaper silver (Ag) electrode with lower parasitic absorption than gold may be the better choice. In this work, efficient semitransparent perovskite solar cells (PSCs) were firstly developed by adopting the composite cathode of an ultrathin Ag electrode at its percolation threshold thickness (11 nm), a molybdenum oxide optical coupling layer, and a bathocuproine interfacial layer. The resulting power conversion efficiency (PCE) is 13.38% when the PSC is illuminated from the ITO side and the PCE is 8.34% from the Ag side, and no obvious current hysteresis can be observed. Furthermore, by stacking an industrial Si bottom cell (PCE = 14.2%) to build a four-terminal architecture, the overall PCEs of 17.03% (ITO side) and 11.60% (Ag side) can be obtained, which are 27% and 39% higher, respectively, than those of the perovskite top cell. Also, the PCE of the tandem cell has exceeded that of the reference Si solar cell by about 20%. This work provides an outlook to fabricate high-performance solar cells via the cost-effective pathway.

show abstract

“…[12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] To reduce organic underlayer damage, various low-damage sputtering methods, such as using parallel targets 12,16,17 and cylindrical sputtering, 13 have been reported. Additionally, annealing of damaged devices 25 and insertion of protective layers 14,[18][19][20] between organic thin films and sputtered electrodes are effective methods of suppressing sputtering damage.…”

Section: Introductionmentioning

confidence: 99%

Effect of positively charged particles on sputtering damage of organic electro-luminescent diodes with Mg:Ag alloy electrodes fabricated by facing target sputtering

et al. 2017

View full text Add to dashboard Cite

We investigated the influence of the positively charged particles generated during sputtering on the performances of organic light-emitting diodes (OLEDs) with Mg:Ag alloy electrodes fabricated by sputtering. The number of positively charged particles increased by several orders of magnitude when the target current was increased from 0.1 A to 2.5 A. When a high target current was used, many positively charged particles with energies higher than the bond energy of single C–C bonds, which are typically found in organic molecules, were generated. In this situation, we observed serious OLED performance degradation. On the other hand, when a low target current was used, OLED performance degradation was not observed when the number of positively charged particles colliding with the organic underlayer increased. We concluded that sputtering damage caused by positively charged particles can be avoided by using a low target current.

show abstract

Thermal and Environmental Stability of Semi‐Transparent Perovskite Solar Cells for Tandems Enabled by a Solution‐Processed Nanoparticle Buffer Layer and Sputtered ITO Electrode

Cited by 450 publications

References 41 publications

Improved Performance and Reliability of p‐i‐n Perovskite Solar Cells via Doped Metal Oxides

Improved Performance and Reliability of p‐i‐n Perovskite Solar Cells via Doped Metal Oxides

Efficient Semitransparent Perovskite Solar Cells Using a Transparent Silver Electrode and Four-Terminal Perovskite/Silicon Tandem Device Exploration

Effect of positively charged particles on sputtering damage of organic electro-luminescent diodes with Mg:Ag alloy electrodes fabricated by facing target sputtering

Contact Info

Product

Resources

About