Low-temperature operation of perovskite solar cells: With efficiency improvement and hysteresis-less

Ginting, Riski Titian; Jung, Eun-Seon; Jeon, Mi-Kyoung; Jin, Won‐Yong; Song, Myungkwan; Kang, Jae‐Wook

doi:10.1016/j.nanoen.2016.08.016

Cited by 56 publications

(47 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Jae-Wook Kang and coworkers studied the relationship between the low-temperature transport behavior and performance of two-step fabricated MAPbI 3 solar cells. 24 As the temperature was cooled down from 298 to 253 K, the PCE was increased from 14.2% to 15.5% with a noticeable increase of both J SC and V OC , which was due to an increase of the CELIV mobility from 0.67 Â 10 À3 to 1.07 Â 10 À3 cm 2 V À1 .…”

Section: Devices With Electrodesmentioning

confidence: 94%

See 1 more Smart Citation

Insights into charge carrier dynamics in organo-metal halide perovskites: from neat films to solar cells

et al. 2017

View full text Add to dashboard Cite

Organo-metal halide perovskites have recently obtained world-wide attention as promising solar cell materials. They have broad and strong light absorption along with excellent carrier transport properties which partially explain their record power conversion efficiencies above 22%. However, the basic understanding of the underlying physical mechanisms is still limited and there remain large discrepancies among reported transport characteristics of perovskite materials. Notably, the carrier mobility of perovskite samples either in thin films or within solar cells obtained using different techniques can vary by up to 7-8 orders of magnitude. This tutorial review aims to offer insights into the scope, advantages, limitations and latest developments of the techniques that have been applied for studying charge carrier dynamics in perovskites. We summarize a comprehensive set of measurements including (1) time-resolved laser spectroscopies (transient absorption, time-resolved photoluminescence, terahertz spectroscopy and microwave conductivity); (2) electrical transient techniques (charge extraction by linearly increasing voltage and time-of-flight); and (3) steady-state methods (field-effect transistor, Hall effect and space charge limited current). Firstly, the basics of the above measurements are described. We then comparatively summarize the charge carrier characteristics of perovskite-based neat films, bilayer films and solar cells. Finally, we compare the different approaches in evaluating the key parameters of transport dynamics and unravel the reasons for the large discrepancies among these methods. We anticipate that this tutorial review will serve as the entry point for understanding the experimental results from the above techniques and provide insights into charge carrier dynamics in perovskite materials and devices.

show abstract

Section: Devices With Electrodesmentioning

confidence: 94%

“…The conversion from dispersive to nondispersive charge transport at low temperature was unraveled by CELIV measurements of MAPbI 3 /spiro-OMeTAD bilayer solar cells. 24 This behavior resulted from the suppressed trap states caused by the disordered MA dipoles at low temperature.…”

Section: View Article Onlinementioning

confidence: 99%

Insights into charge carrier dynamics in organo-metal halide perovskites: from neat films to solar cells

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The transient photovoltage measurement setup consists of an oscilloscope (Siglent, SDS 1302CFL, 300 MHz with 1 MΩ input) and a function generator (Tektronix, AFG3022C). The measurements were taken at open‐circuit conditions under white LED background illumination and a blue laser of 473 nm (CNI laser, MBL‐FN‐473, synchronized by the function generator) as a perturbation source, similar to the method reported in previous works . For stability testing, the PSC devices were fully encapsulated using UV‐curable resin NOA63 (Norland Products Inc.) and a ≈0.7 mm thick bare glass capped with a rim of 2 mm to limit moisture ingress via the sides of the device, as demonstrated in previous work .…”

Section: Methodsmentioning

confidence: 99%

Boosting the Efficiency of SnO₂‐Triple Cation Perovskite System Beyond 20% Using Nonhalogenated Antisolvent

Lee

Jeon

Kumar

et al. 2019

Adv Funct Materials

View full text Add to dashboard Cite

Solution-processed triple-cation perovskite solar cells (PSCs) rely on complex compositional engineering or delicate interfacial passivation to balance the trade-off between cell efficiency and long-term stability. Herein, the facile fabrication of highly efficient, stable, and hysteresis-free tin oxide (SnO 2 )based PSCs is demonstrated with a champion cell efficiency of 20.06% using a green, halogen-free antisolvent. The antisolvent, composed of ethyl acetate (EA) solvent and hexane (Hex) in different proportions, works exquisitely in regulating perovskite crystal growth and passivating grain boundaries, leading to the formation of a crack-free perovskite film with enlarged grain size. The high quality perovskite film inhibits carrier recombination and substantially improves the cell efficiency, without requiring an additional enhancer/passivation layer. Furthermore, these PSCs also demonstrate remarkable long-term stability, whereby unencapsulated cells exhibit a power conversion efficiency (PCE) retention of ≈71% after >1500 hours of storage under ambient condition. For encapsulated cells, an astounding PCE retention of >98% is recorded after >3000 hours of storage in air. Overall, this work realizes the fabrication of SnO 2 -based PSCs with a performance greater or comparable to the state-of-the-art PSCs produced with halogenated antisolvents. Evidently, EA-Hex antisolvent can be an extraordinary halogenfree alternative in maximizing the performance of PSCs.

show abstract

“…used Cs to improve the properties of solution processedZ nO thin films as ETLs. [195] Indeed, even if they are cheap and facile to preparea tl ow temperature, [8,196] ZnO ETLs typicallye xhibit deep trap states due to oxygen chemisorption, [197] which drives the electrons from perovskite LUMO to hop between these trap states before being collectedb yt he back-electrode. As as olution, Mahmud et al carriedo ut the surfacem odification of ZnO ETL with Cs-based compounds (acetate and carbonate) to fabricate highly efficient (16.5 %) mixed organic cations based MA 0.6 FA 0.4 PbI 3 PSCs by restricted volumes olvent annealing method.…”

Section: Caesium-doping In Other Perovskite Solar Cell Componentsmentioning

confidence: 99%

Caesium for Perovskite Solar Cells: An Overview

Bella

Renzi

Cavallo

et al. 2018

Chemistry A European J

147

View full text Add to dashboard Cite

Perovskite solar cells have the potential to revolutionize the world of photovoltaics, and their efficiency close to 23 % on a lab-scale recently certified this novel technology as the one with the most rapidly raising performance per year in the whole story of solar cells. With the aim of improving stability, reproducibility and spectral properties of the devices, in the last three years the scientific community strongly focused on Cs-doping for hybrid (typically, organolead) perovskites. In parallel, to further contrast hygroscopicity and reach thermal stability, research has also been carried out to achieve the development of all-inorganic perovskites based on caesium, the performances of which are rapidly increasing. The potential of caesium is further strengthened when it is used as a modifying agent of charge-carrier layers in solar cells, but also for the preparation of perovskites with peculiar optoelectronic properties for unconventional applications (e.g., in LEDs, photodetectors, sensors, etc.). This Review offers a 360-degree overview on how caesium can strongly tune the properties and performance of perovskites and relative perovskite-based devices.

show abstract

Low-temperature operation of perovskite solar cells: With efficiency improvement and hysteresis-less

Cited by 56 publications

References 30 publications

Insights into charge carrier dynamics in organo-metal halide perovskites: from neat films to solar cells

Insights into charge carrier dynamics in organo-metal halide perovskites: from neat films to solar cells

Boosting the Efficiency of SnO₂‐Triple Cation Perovskite System Beyond 20% Using Nonhalogenated Antisolvent

Caesium for Perovskite Solar Cells: An Overview

Contact Info

Product

Resources

About

Low-temperature operation of perovskite solar cells: With efficiency improvement and hysteresis-less

Cited by 56 publications

References 30 publications

Insights into charge carrier dynamics in organo-metal halide perovskites: from neat films to solar cells

Insights into charge carrier dynamics in organo-metal halide perovskites: from neat films to solar cells

Boosting the Efficiency of SnO2‐Triple Cation Perovskite System Beyond 20% Using Nonhalogenated Antisolvent

Caesium for Perovskite Solar Cells: An Overview

Contact Info

Product

Resources

About

Boosting the Efficiency of SnO₂‐Triple Cation Perovskite System Beyond 20% Using Nonhalogenated Antisolvent