TiO2 Mesocrystals Processed at Low-temperature as the Electron-transport Material in Perovskite Solar Cells

ChemSusChem
Mingdeng WeiMuhammad Aftab Akram

Abstract

TiO2 is the most widely used material for preparing the electron-transporting layer (ETL) in perovskite solar cells (PSCs), however, it requires a high-temperature sintering process. Besides, the intrinsic defects and low electron mobility of TiO2 ETL will cause the instability and hysteresis effect of PSCs. In the present work, the mesoporous film composed of TiO2 mesocrystals was facilely fabricated via low temperature route and then used as an ETL in PSCs for the first time, and a satisfying efficiency of 20.26% can be achieved under the delicate control in the entire fabricated procedures of the device. Moreover, the optimal device with an area of 1 cm2 also achieved an efficiency of 17.07%. Comparing to the common TiO2, TiO2 mesocrystals ETLs shows the enhancement of electron extraction and suppression of the charge accumulation at the interface of perovskite/ETL, resulting in the improvement of photovoltaic performance and reduction of hysteresis effect.

References

Apr 16, 2009·Journal of the American Chemical Society·Akihiro KojimaTsutomu Miyasaka
Oct 10, 2012·Journal of the American Chemical Society·Lioz EtgarMichael Grätzel
Mar 15, 2014·Physical Chemistry Chemical Physics : PCCP·Zhensheng HongMingdeng Wei
Oct 16, 2014·Chemical Communications : Chem Comm·Qinglong JiangTao Xu
Aug 19, 2015·The Journal of Physical Chemistry Letters·Rafael S SanchezJuan Bisquert
Aug 28, 2015·Small·Peng QinMohammad Khaja Nazeeruddin
Oct 9, 2015·Chemical Society Reviews·Janusz NowotnyWolfgang Sigmund
Apr 9, 2016·ACS Applied Materials & Interfaces·Zonghao LiuYang Yang
Aug 2, 2016·Energy & Environmental Science·Michael SalibaMichael Grätzel
Sep 28, 2018·Chemical Communications : Chem Comm·Weifeng ZhangMingdeng Wei
Sep 17, 2019·ACS Applied Materials & Interfaces·Jie DouMingdeng Wei

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.