Ruthenium doped mesoporous titanium dioxide for highly efficient, hysteresis-free and stable perovskite solar cells

Chavan, Rohit D.; Yadav, Pankaj; Nimbalkar, Ajaysing S.; Bhoite, Sangram P.; Bhosale, Popatrao N.; Hong, Chang Kook

doi:10.1016/j.solener.2019.04.098

Cited by 32 publications

(25 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The c‐TiO 2 (thickness = 20 nm) layers was deposited on the FTO glass and calcined for 30 min at 450 °C. [ 63 ] The ms‐TiO 2 solution (1:6 weight ratio paste: ethanol) was deposited by spin‐coating method onto the c‐TiO 2 layer and calcined at 500 °C for 30 min. A perovskite precursor composition of FAPbI 3 with 10 mol% CsCl were spin coated on ms‐TiO 2 at 1000 and 6000 rpm for 10 and 20 s. During the second step, 200 µL chlorobenzene was dropped on at 15 s. [ 48 ] The deposited film was annealed at 150 °C for 30 min to get perovskite light‐absorption layer.…”

Section: Methodsmentioning

confidence: 99%

Mesoscopic TiO₂/Nb₂O₅ Electron Transfer Layer for Efficient and Stable Perovskite Solar Cells

Chavan

Parikh

Tavakoli

et al. 2021

Adv Materials Inter

Self Cite

View full text Add to dashboard Cite

However, the major hurdles in commercialization of PSCs are their low long-term stability and hysteretic behavior in current-voltage (J-V) characteristics that need to be resolved. [11] To date, various mechanisms are proposed for the hysteretic behavior of PSCs including charge trapping -detrapping, [12] ferroelectricity, [13] ion migration [14] or interfacial capacitance. [15] The typical solar cell consists of transparent conductive electrode (fluorinedoped tin oxide (FTO)/indium tin oxide (ITO))/electron transport layer (ETL)/ perovskite absorber layer/hole transporting layer (HTL)/metal electrode. [16] For efficient PSCs, the ETL should exhibit i) high electron mobility to ensure fast electron transport within ETL, ii) proper energy level alignment for effective electron transfer and hole blocking, iii) high stability, iv) high transmittance, and v) easy processability. [17,18] Generally, TiO 2 has been widely used as an ETL in PSCs, however, the TiO 2 /perovskite interface suffers from charge accumulation owing to inefficient charge transfer. [19][20][21] Many strategies have been employed to circumvent this issue and improve the performance of the PSC. [22][23][24][25] For example, doping of compact TiO 2 ETL with inorganic Y, Zr, and Mg metal cations yields in reduced hysteresis because of possible defect passivation. [26][27][28] Moreover, surface passivation of mesoporous TiO 2 (ms-TiO 2 ) with various metal oxides There has been tremendous advancement in the field of perovskite photovoltaics by means of interfacial engineering, compositional engineering and optimization of charge collection efficiency. The large bandgap oxides deposited using atomic layer deposition (ALD) technique have proven to be successfully passivating the interfacial defects owing to the advantages offered by this technique. Here, the effect of surface modification of mesoporous TiO 2 (ms-TiO 2 ) layer with a transition metal oxide named niobium pentoxide (Nb 2 O 5 ) deposited by ALD technique on the performance and stability of perovskite solar cells (PSCs) is investigated. The results reveal that functionalization with ultrathin Nb 2 O 5 layer improve the optoelectronic properties and morphology of the deposited perovskite films. Moreover, the charge transfer is improved and hence the interfacial recombination is reduced. This results in improved power conversion efficiency (PCE) from 19.11% to 21.04% and opencircuit voltage (V OC ) from 1.118 to 1.147 V for the modified champion device. Additionally, the device shows negligible hysteresis with enhanced shelf life thermal and UV stabilities.

show abstract

Section: Methodsmentioning

confidence: 99%

Mesoscopic TiO₂/Nb₂O₅ Electron Transfer Layer for Efficient and Stable Perovskite Solar Cells

Chavan

Parikh

Tavakoli

et al. 2021

Adv Materials Inter

Self Cite

View full text Add to dashboard Cite

show abstract

“…[ 165 ] Likewise, doping Ru into mp‐TiO 2 results in a high‐quality TiO 2 film, which also promotes charge transport and collection, and effectively reduces the hysteresis. [ 172 ] The performance of PSC obtained by TiO 2 ETL with various elements doping are shown in Table 2 .…”

Section: Methods Of Reducing or Eliminating Hysteresismentioning

confidence: 99%

The J–V Hysteresis Behavior and Solutions in Perovskite Solar Cells

Wang

Lei

et al. 2020

Solar RRL

View full text Add to dashboard Cite

The power conversion efficiency (PCE) of perovskite solar cells (PSCs) has exceeded 25%, showing great potential in the photovoltaic field. However, PSCs often show anomalous current density–voltage (J–V) hysteresis behavior in the forward and reverse scanning directions, which makes it impossible to accurately evaluate the performance of PSCs. Therefore, it is necessary to clearly understand the mechanism of hysteresis and suppress the hysteresis. Herein, the J–V hysteresis behavior in PSCs and strategies to suppress hysteresis is focused: first, the various factors that affect J–V hysteresis in PSCs are summarized. And the mechanism behind the various possible origins of hysteresis and the challenges encountered are explored. Then, the strategies to suppress or eliminate the hysteresis are summarized, including optimizing the perovskite light‐absorbing layer, improving the performance of the carrier transport layer and interface engineering. Finally, insights on the future development of the hysteresis are also provided.

show abstract

“…Ghorashi uses MOF as a precursor, using the sacrificial template method (Shen et al, 2018), CuO@NiO nanospheres with core-shell structure were prepared by solvothermal method, and the structure is shown in Figure 9A (Hazeghi et al, 2020). Compared with NiO nanoparticles, core-shell CuO@NiO nanostructures have smaller band gaps and fewer defect states (Chavan et al, 2019;Liu et al, 2019). As a p-type HTL, nanoparticles are used in the manufacture of conventional PSC.…”

Section: Ll Open Accessmentioning

confidence: 99%

MOFs based on the application and challenges of perovskite solar cells

Shen

Zhang

et al. 2021

iScience

View full text Add to dashboard Cite

In recent years, perovskite solar cells (PSCs) have attracted much attention because of their high energy conversion efficiency, low cost, and simple preparation process. Up to now, the photoelectric conversion efficiency of solar cells has been increased from 3.8% to 25.5%. Metal-organic skeleton-derived metal oxides and their composites (MOFs) are widely considered for application in PSCs due to their low and flat charge/discharge potential plateau, high capacity, and stable cycling performance. By combining MOFs and PSCs, based on the composition materials of perovskite film, electron transport layer, hole transport layer, and interfacial interlayer of PSCs, this article discusses the photovoltaic performance or structure optimization effect of MOFs in each function layer, which is of great significance to improve the photovoltaic performance of the cell. The problems faced by MOFs on perovskite solar cells are summarized, the next research directions are discussed, and the development of this crossover area of MOFs-PSC is foreseen to accelerate the comprehensive research and popularization of MOFs on PSCs.

show abstract

Ruthenium doped mesoporous titanium dioxide for highly efficient, hysteresis-free and stable perovskite solar cells

Cited by 32 publications

References 49 publications

Mesoscopic TiO₂/Nb₂O₅ Electron Transfer Layer for Efficient and Stable Perovskite Solar Cells

Mesoscopic TiO₂/Nb₂O₅ Electron Transfer Layer for Efficient and Stable Perovskite Solar Cells

The J–V Hysteresis Behavior and Solutions in Perovskite Solar Cells

MOFs based on the application and challenges of perovskite solar cells

Contact Info

Product

Resources

About

Ruthenium doped mesoporous titanium dioxide for highly efficient, hysteresis-free and stable perovskite solar cells

Cited by 32 publications

References 49 publications

Mesoscopic TiO2/Nb2O5 Electron Transfer Layer for Efficient and Stable Perovskite Solar Cells

Mesoscopic TiO2/Nb2O5 Electron Transfer Layer for Efficient and Stable Perovskite Solar Cells

The J–V Hysteresis Behavior and Solutions in Perovskite Solar Cells

MOFs based on the application and challenges of perovskite solar cells

Contact Info

Product

Resources

About

Mesoscopic TiO₂/Nb₂O₅ Electron Transfer Layer for Efficient and Stable Perovskite Solar Cells

Mesoscopic TiO₂/Nb₂O₅ Electron Transfer Layer for Efficient and Stable Perovskite Solar Cells