Experimental data for probing the local temperature rise around plasmonic core–shell nanoparticles

The local temperature rise around plasmonic gold–silica core–shell nanoparticles (NPs) was probed using the temperature-dependent behavior of the polymer poly[(hexamethylene diisocyanate)-<em>alt</em>-(triethylene glycol; <em>N</em>,<em>N</em>’-di-<em>tert</em>-butylethylenediamine)] (PHTD). Further details, including experimental methods, can be found in the accompanying publication. This dataset contains the data analyzing the nanoparticles and PHTD individually, as well as time-resolved spectroscopy of the nanoparticles embedded in PHTD.<br>All data are given as comma-separated values (CSV), with the first line describing the quantity and unit of each column.<br><strong>Mid-infrared transient absorption spectroscopy</strong>Absorbance change spectra near the C=O stretch vibration of PHTD. The error of these spectra is also included.<em>MIR-TA_NP+PHTD_data.csv</em>: Measured MIR-TA spectra at various time points<em>MIR-TA_NP+PHTD_fit-spectra.csv</em>: Spectral parameters fit to MIR-TA data<br><strong>Transmission electron microscopy</strong>Data analyzed from transmission electron micrographs.<em>TEM_NP_core.csv</em>: Measured nanoparticle core diameters and aspect ratios<em>TEM_NP_shell.csv</em>: Measured nanoparticle shell thicknesses<br><strong>Ultraviolet–visible spectroscopy</strong><em>UV-Vis_NP.csv</em>: UV/Vis absorbance spectrum of aqueous nanoparticle solution<br><strong>Variable-temperature Fourier-transform infrared spectroscopy</strong>Infrared absorbance spectra of PHTD during multiple heating/cooling cycles in order of measurement, with indicated for each spectrum at what temperature it was measured, during what cycle, and whether it was during heating ("up") or cooling ("down") of that cycle.<em>VT-FTIR_PHTD_raw-data.csv</em>: Spectra of PHTD without processing<em>VT-FTIR_PHTD_atmospherically-corrected.csv</em>: Spectra of PHTD after atmospheric correction

本研究利用聚合物聚[(六亚甲基二异氰酸酯)-交替-(三乙二醇; N,N’-二叔丁基乙二胺)]（poly[(hexamethylene diisocyanate)-alt-(triethylene glycol; N,N’-di-tert-butylethylenediamine)], PHTD）的温度依赖特性，对等离子体金-二氧化硅核壳纳米颗粒（plasmonic gold–silica core–shell nanoparticles）周围的局部温升进行了探测。更多细节（含实验方法）可参见随附的正式出版物。
本数据集包含纳米颗粒与PHTD各自的表征数据，以及嵌入PHTD中的纳米颗粒的时间分辨光谱数据。
所有数据均以逗号分隔值（comma-separated values, CSV）格式存储，首行标注各列对应的物理量与单位。
**中红外瞬态吸收光谱（Mid-infrared transient absorption spectroscopy）**
该部分为PHTD的C=O伸缩振动峰附近的吸光度变化光谱，同时包含该光谱的误差数据。
- `MIR-TA_NP+PHTD_data.csv`：不同时间点下测得的中红外瞬态吸收光谱
- `MIR-TA_NP+PHTD_fit-spectra.csv`：拟合中红外瞬态吸收光谱得到的光谱参数
**透射电子显微镜（Transmission electron microscopy）**
该部分数据源自透射电子显微图像的分析结果。
- `TEM_NP_core.csv`：测得的纳米颗粒核直径与长径比
- `TEM_NP_shell.csv`：测得的纳米颗粒壳层厚度
**紫外-可见光谱（Ultraviolet–visible spectroscopy）**
- `UV-Vis_NP.csv`：水性纳米颗粒分散液的紫外/可见吸光度光谱
**变温傅里叶变换红外光谱（Variable-temperature Fourier-transform infrared spectroscopy）**
该部分为PHTD在多次升降温循环过程中测得的红外吸光度光谱，按测试顺序排列，每条光谱均标注了对应的测试温度、循环次数，以及该光谱处于升温（"up"）还是降温（"down"）阶段。
- `VT-FTIR_PHTD_raw-data.csv`：未经过处理的PHTD原始光谱数据
- `VT-FTIR_PHTD_atmospherically-corrected.csv`：经过大气校正后的PHTD光谱数据