How can you identify porous silicon from FTIR?
This page summarizes the recurring FTIR evidence reported for porous silicon, including the most frequent peaks, supporting functional groups, and literature-backed interpretation patterns. It is a structured evidence page, not a claim of automatic single-spectrum certainty.
Backed by 10 cited sources
Quick answer
porous silicon is usually reported with a recurring pattern of peaks and functional-group evidence. The most useful approach is to cross-check at least two characteristic peaks before treating it as a match, then verify whether the full spectrum still fits the same material family.
Peak interpretation
Possible materials / groups
| Functional group | Evidence |
|---|---|
| Silicon (Si) | 13 |
| Silicon-oxygen (Si-O) | 11 |
| Silicon hydride | 10 |
| Siloxane (Si-O-Si) | 8 |
| Alkyl C-H | 6 |
| Silicon silicon | 3 |
| Carbonyl (C=O) | 2 |
| Silanol (Si-OH) | 2 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of porous silicon, repeated peak positions, and repeated functional-group associations. A strong material hypothesis should still be supported by multiple peaks that agree with each other, not by one headline band alone.
Real-world usage
This page is designed for polymer identification, incoming-material QC, unknown plastic analysis, recycled-content review, and literature-backed interpretation of reference spectra.
Common mistakes
- Calling a material match too early because one famous peak is present.
- Ignoring sample prep, fillers, oxidation, water, or additives that can change the apparent pattern.
- Using literature evidence without checking whether your own sampling mode and spectrum quality are comparable.
Verification advice
Use DSC, GC-MS, or TGA to validate the material hypothesis when the peak pattern is ambiguous or mixed.
Literature behind this page
-
confidence 1.0
porous silicon
Huang 和 Zhai - 1997 - Fourier transform infrared study of porous silicon DOI: 10.1116/1.589575 -
confidence 0.95
porous silicon
Controlling and Predicting the Dissolution Kinetics of Thermally Oxidised Mesoporous Silicon Particles: Towards Improved Drug Delivery DOI: 10.3390/pharmaceutics11120634 -
confidence 0.9
porous silicon
A combination of electroless and electrochemical etching methods for enhancing the uniformity of porous silicon substrate for light detection application DOI: 10.1016/j.apsusc.2012.03.056 -
confidence 0.9
porous silicon
Reversible quenching of photoluminescence in stain etched porous silicon at HNO 3 posttreatment and role of oxygen bonds DOI: 10.1016/j.jlumin.2017.11.011 -
confidence 0.9
porous silicon
Kralik 和 Kopani - 2023 - Analysis of porous silicon structures using FTIR a DOI: 10.2478/jee-2023-0028 -
confidence 0.7
porous silicon
De la Cruz-Guzman 等 - 2014 - A turn-on fluorescent solid-sensor for Hg(II) dete DOI: 10.1186/1556-276X-9-431 -
confidence 0.6
porous silicon
Olenych 等 - 2016 - Effect of Graphene Oxide on the Properties of Poro DOI: 10.1186/s11671-016-1264-5 -
confidence 0.5
porous silicon
Kopani 等 - 2017 - Morphology and FT IR spectra of porous silicon DOI: 10.1515/jee-2017-0056 -
confidence 0.3
Porous silicon
Fabiola Balderas-Valadez 和 Agarwal - 2014 - Porous silicon functionalization for possible arse DOI: 10.1186/1556-276X-9-508 -
confidence 0.3
porous silicon
Kayahan - 2015 - Porous Silicon Based Humidity Sensor DOI: 10.12693/APhysPolA.127.1397
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