Technology

~ 5 min

How to optimize the QCM baseline stability

Here we will list 9 things that could affect the stability of your QCM-D baseline, and give advice on how to address them if you are experiencing drift.

~ 5 min

How are QCM results influenced by the lateral distribution of the measured layer?

Here we explain the reasoning behind the uniformity requirement and describe the consequences if it is not fulfilled.

< 4 min

What is the QCM sensitivity?

Here we sort out the difference between the theoretical QCM sensitivity and the actual one, and help you assess what the sensitivity in the measurement situation will be.

< 4 min

Should I use SPR or QCM-D?

At first glance, SPR and QCM-D are quite similar. Here we sort out the key differences between them and list examples of when to use which method

~ 3 min

How does QCM-D compare to other QCM:s?

Surveying the market of QCM:s, one will come across a vast range of different QCM versions, and they all seem to provide similar information. What are the differences, and does it matter which one I use?

> 4 min

How does QCM-technology work?

The quartz crystal microbalance, QCM, has been around since the 60’ where it has been used for monitoring of thin-film deposition and characterization of thin films. So how does this technology work?

> 5 min

What is piezoelectricity?

What is piezoelectricity and how does it work? Here we explain the piezoelectric effect and how this remarkable property arises.

~ 7 min

Does the QCM fundamental frequency matter?

In QCM instrument specifications and experimental descriptions, there is always a reference to the fundamental frequency. But does the fundamental frequency really matter? Here we sort out the details and explain how and why it matters in a measurement situation.

> 4 min

The Sauerbrey equation or viscoelastic modeling? – what happens if you use the wrong method?

Quantifying QCM mass, there are two different approaches to choose from, the Sauerbrey equation or viscoelastic modeling. But what if the wrong method is applied, what happens then? How critical are the consequences? Here we describe what happens if the wrong quantification approach is used.

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