4.5 Article

New D-A propeller system with pyridine core for co-sensitization in dye sensitized solar cells

Related references

Note: Only part of the references are listed.
Article Chemistry, Physical

New D-π-D-π-A Systems Based on Phenothiazine Derivatives with Imidazole Structures for Photovoltaics

Sylwia Zimosz et al.

Summary: This study synthesized two compounds with an N-octyl phenothia-zine core substituted at C(7) position via a triple bond with imidazole-containing butyl or dodecyl chains. Photophysical and electrochemical studies were conducted to investigate their potential application in dye-sensitized solar cells. The synthesized dyes exhibited similar absorption profiles and high light-harvesting efficiency. Electrochemical measurements revealed their ability for electron injection and regeneration. DSSCs sensitized with the phenothiazine derivatives showed improved device performance, regardless of TiO2 thickness or electrolyte type.

JOURNAL OF PHYSICAL CHEMISTRY C (2022)

Article Chemistry, Multidisciplinary

Synthesis and characterization of a new phenothiazine-based sensitizer/co-sensitizer for efficient dye-sensitized solar cell performance using a gel polymer electrolyte and Ni-TiO2 as a photoanode

Dheeraj Devadiga et al.

Summary: This study aims to enhance the photo-ability of sensitizers and metal-free co-sensitizers in a Ni-TiO2 photoanode and blend gel polymer electrolyte-based DSSCs. Sensitizing with POBA and Z907 can compensate for the absorption defect, enhance and broaden the absorption spectrum of dyes, and reduce charge recombination.

NEW JOURNAL OF CHEMISTRY (2022)

Article Chemistry, Physical

Protonation induced redshift in the fluorescence of a pyridine derivative as a potential anti-counterfeiting agent

Deepak Devadiga et al.

Summary: A pyridine-based compound with good solubility in various organic solvents was synthesized. Its absorption and emission properties were studied in different solvents, and a redshift was observed in the chloroform solvent due to protonation by HCl. The compound also exhibited acidochromic and aggregation induced enhanced emission properties, making it a potential anti-counterfeiting agent.

SOFT MATTER (2022)

Review Energy & Fuels

Recent developments in metal-free organic sensitizers derived from carbazole, triphenylamine, and phenothiazine for dye-sensitized solar cells

Dheeraj Devadiga et al.

Summary: In the context of increasing population, the importance of renewable and sustainable energy alternatives is emphasized. Scientists are focusing on producing cost-effective and high-performance clean energy appliances to meet the growing demand. Dye-sensitized solar cells (DSSCs) are highlighted as a leading material in modern solar cell technologies, with metal-free organic dyes like carbazole (CZ), triphenylamine (TPA), and phenothiazine (PTZ) derivatives being identified as suitable alternatives to traditional complexes. This review primarily discusses the latest developments in using CZ, TPA, and PTZ scaffolds for DSSC applications, emphasizing the correlation between molecular design and photovoltaic performance. Adjusting the physical properties of devices through strategic sensitizer design can improve device performance, with photovoltaic parameters presented for all dyes and application insights on CZ, TPA, and PTZ-based dyes provided following a systematic review.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2021)

Article Chemistry, Physical

Exceptional dual fluorescent, excited-state intramolecular proton-transfer (ESIPT) columnar liquid crystals characterized by J-stacking and large Stokes shifts

Madhu Babu Kanakala et al.

Summary: This study reports the synthesis, characterization, and ESIPT activity of a series of novel ESIPT Col LCs, showcasing their fluorescence properties in different phases. Additionally, the redox activity, metal ion sensing ability, and solvatochromism of the mesogens were investigated. The ESIPT Col LCs with a band-gap of about 3 eV exhibit electronic characteristics falling between conventional semiconductors and insulators.

JOURNAL OF MOLECULAR LIQUIDS (2021)

Article Electrochemistry

Novel photosensitizer for dye-sensitized solar cell based on ionic liquid-doped blend polymer electrolyte

Dheeraj Devadiga et al.

Summary: An integrated photo-supercapacitor device was fabricated for simultaneous photoelectric conversion and energy storage. By synthesizing novel materials and studying their properties, the efficiency of dye-sensitized solar cells and supercapacitors was successfully improved.

JOURNAL OF SOLID STATE ELECTROCHEMISTRY (2021)

Review Engineering, Electrical & Electronic

Dye-Sensitized Solar Cell for Indoor Applications: A Mini-Review

Dheeraj Devadiga et al.

Summary: In recent years, lightweight computing technologies such as the Internet of Things and flexible wearable systems have exponentially penetrated everyday life. The running of electronic devices poses a major energy problem, which can potentially be solved by using self-sustainable power sources like photovoltaic cells such as dye-sensitized solar cells to meet the energy demands of indoor electronics.

JOURNAL OF ELECTRONIC MATERIALS (2021)

Review Chemistry, Physical

Recent progress in dye sensitized solar cell materials and photo-supercapacitors: A review

Dheeraj Devadiga et al.

Summary: Dye-sensitized solar cells are an efficient method of converting energy and have the potential to be a future energy source. Integration with rechargeable energy storage systems has addressed the issue of power output in photovoltaic conversion systems.

JOURNAL OF POWER SOURCES (2021)

Article Chemistry, Multidisciplinary

Enhancement of dye-sensitized solar cell efficiency through co-sensitization of thiophene-based organic compounds and metal-based N-719

Ismail Althagafi et al.

Summary: Five novel thiophene-based metal-free organic dyes (IS1-5) synthesized for study in DSSCs exhibit good potential as sensitizers, with IS-5 showing the highest photoconversion efficiency among them. The DFT results for these dyes align well with experimental outcomes, suggesting their suitability for enhancing charge transfer in TiO2.

ARABIAN JOURNAL OF CHEMISTRY (2021)

Article Spectroscopy

A rational design of excellent light-absorbing dyes with different N-substituents at the phenothiazine for high efficiency solar cells

Yuanchao Li et al.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2020)

Article Chemistry, Physical

Dopant-Free Hole-Transport Materials Based on 2,4,6-Triarylpyridine for Inverted Planar Perovskite Solar Cells

Liangsheng Duan et al.

ACS APPLIED ENERGY MATERIALS (2020)

Article Materials Science, Multidisciplinary

Optical band gaps of organic semiconductor materials

Jose C. S. Costa et al.

OPTICAL MATERIALS (2016)

Article Chemistry, Physical

Excited-state dynamics of thiophene substituted betaine pyridinium compounds

Stephane Aloise et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2014)

Article Biochemical Research Methods

Synthesis and Spectroscopic Characterization of Fluorescent Boron Dipyrromethene-Derived Hydrazones

Ozlem Dilek et al.

JOURNAL OF FLUORESCENCE (2011)

Editorial Material Optics

Solar cells that mimic plants

Nadya Anscombe

NATURE PHOTONICS (2011)

Article Energy & Fuels

Highly efficient dye-sensitized solar cells using phenothiazine derivative organic dyes

ZhiBin Xie et al.

PROGRESS IN PHOTOVOLTAICS (2010)