Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Precipitate Formation and Particle Size Control

Precipitate Formation and Particle Size Control

In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...

Precipitation Processes

Precipitation Processes

The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

A coupled heat-cold island network framework for urban heat island mitigation: a case study of Central Fuzhou.

Scientific reports·2026

Same author

YBX1 Confers immunosuppressive bone metastatic traits in non-small cell lung cancer.

Nature communications·2026

Same author

Clinical Characteristics and Long-Term Outcomes of Patients With Fibrosing Mediastinitis: A Multicenter Retrospective Cohort Study.

JACC. Asia·2026

Same author

Cell-o1 : training LLMs to solve single-cell reasoning puzzles with reinforcement learning.

Bioinformatics (Oxford, England)·2026

Same author

Duplex-Indel: a Snakemake pipeline for somatic Indel calling in Tn5 transposase-based duplex sequencing data.

Bioinformatics (Oxford, England)·2026

Same author

Asian Burden of Liver Cancer 1990-2021 and Predictions to 2040: An Analysis of the Global Burden of Disease Study 2021.

Cancer control : journal of the Moffitt Cancer Center·2026

Same journal

Data-Driven Exploration of the Polyethylene Catalyst Chemical Space via Machine Learning.

The journal of physical chemistry letters·2026

Same journal

Role of Ultrafast Electron-Thermal-Phonon Interactions in High Harmonic Generation and Dephasing from Graphene.

The journal of physical chemistry letters·2026

Same journal

Real-Time Vibrational Spectroscopy Reveals an Inversion Transition State in the Photoisomerization of Phenylazoimidazole.

The journal of physical chemistry letters·2026

Same journal

Precursor-Directed Self-Assembly in Hydrothermal Carbon Nitride Nanostructures Revealed by Nano-FTIR.

The journal of physical chemistry letters·2026

Same journal

Correction to "Equation-of-Motion Block-Correlated Coupled Cluster Method for Excited Electronic States of Strongly Correlated Systems".

The journal of physical chemistry letters·2026

Same journal

Rationalizing Stacking-Dependent Charge Injection Dynamics in Radical-Based Organic Light-Emitting Diodes.

The journal of physical chemistry letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Sep 2, 2025

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Published on: February 27, 2017

Avoid Pitfalls in Identifying Perovskite Grain Size.

Bowen Jin¹, Yidong Ming¹, Zihui Liang¹

¹Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.

The Journal of Physical Chemistry Letters

|August 11, 2022

Summary

This summary is machine-generated.

Perovskite grain size is crucial for solar cell performance. Current methods like scanning electron microscopy (SEM) may inaccurately assess grain boundaries (GBs), potentially misjudging film quality.

More Related Videos

Picometer-Precision Atomic Position Tracking through Electron Microscopy

Picometer-Precision Atomic Position Tracking through Electron Microscopy

Published on: July 3, 2021

Reliable Mechanochemistry: Protocols for Reproducible Outcomes of Neat and Liquid Assisted Ball-mill Grinding Experiments

Reliable Mechanochemistry: Protocols for Reproducible Outcomes of Neat and Liquid Assisted Ball-mill Grinding Experiments

Published on: January 23, 2018

Related Experiment Videos

Last Updated: Sep 2, 2025

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Published on: February 27, 2017

Picometer-Precision Atomic Position Tracking through Electron Microscopy

Picometer-Precision Atomic Position Tracking through Electron Microscopy

Published on: July 3, 2021

Reliable Mechanochemistry: Protocols for Reproducible Outcomes of Neat and Liquid Assisted Ball-mill Grinding Experiments

Reliable Mechanochemistry: Protocols for Reproducible Outcomes of Neat and Liquid Assisted Ball-mill Grinding Experiments

Published on: January 23, 2018

Area of Science:

Materials Science
Photovoltaics
Thin Film Technology

Background:

Perovskite grain size is a key metric for evaluating perovskite film quality and photovoltaic performance.
Large grain sizes are traditionally linked to improved charge carrier transport due to reduced scattering at grain boundaries (GBs).
Characterization of perovskite grain size is standard practice in perovskite solar cell research.

Purpose of the Study:

To highlight the limitations of conventional methods for estimating perovskite grain size.
To demonstrate potential inaccuracies in assessing grain boundary distribution using apparent grain size.
To advocate for and present accurate methodologies for evaluating perovskite grain information.

Main Methods:

Review and critical analysis of existing perovskite grain size characterization techniques.
Demonstration of pitfalls using specific examples from scanning electron microscopy (SEM) data.
Proposal of an appropriate platform for accurate perovskite grain information evaluation.

Main Results:

Conventional methods, such as SEM, provide only an 'apparent grain size'.
This apparent grain size can be incomplete or misleading for evaluating grain boundary distribution.
Existing methods may lead to incorrect conclusions about film quality and performance.

Conclusions:

Relying solely on apparent grain size can lead to erroneous assessments of perovskite films.
Accurate evaluation of perovskite grain information requires advanced or alternative methodologies.
Adopting precise characterization techniques is essential for advancing perovskite solar cell research and development.