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Updated: May 22, 2026
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Coin Cell Battery Chamber Design for Low-temperature Operando Experiments
Published on: February 17, 2026
[Design of a controllable low temperature cell and application]
Wei Gao1, Zhen-song Cao, Yi-qian Yuan
1Key Laboratory of Atmospheric Composition and Optical Radiation, Chinese Academy of Sciences, Hefei 230031, China. gwei06@163.com
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|May 16, 2012
Summary
A novel cryogenic cell maintains stable temperatures for spectral analysis. This enabled precise measurements of methane absorption spectra and self-broadening coefficients at low temperatures.
Area of Science:
- Spectroscopy
- Low-temperature physics
- Physical chemistry
Context:
- Accurate temperature control is crucial for spectroscopic measurements.
- Previous studies lacked precise low-temperature capabilities for spectral analysis.
- Methane absorption spectra provide insights into molecular behavior.
Purpose:
- To develop and evaluate a new cryogenic cell for precise temperature-controlled spectroscopy.
- To record methane low-temperature absorption spectra.
- To determine the temperature-dependent exponent of the self-broadening coefficient for methane.
Summary:
- A cryogenic cell was engineered for stable operation between room temperature and 100 K (+/- 1 K fluctuation).
- The cell's structure, performance, and temperature stability were assessed.
- Methane absorption spectra were recorded at various low temperatures (296 K down to 176 K) at 1.65 micrometers.
- The temperature-dependent exponent 'n' of the methane self-broadening coefficient was measured at 6039.70 cm(-1).
Impact:
- Enables high-precision spectroscopic studies at cryogenic temperatures.
- Provides valuable data on methane spectral characteristics under varying thermal conditions.
- Contributes to a deeper understanding of molecular interactions and broadening mechanisms.
