Research data supporting "Cellulose-based Scattering Enhancers for Light Management Applications"

1. Folder named “Figure-1” has nine folders: folders named “Figure-1a, Figure-2a, Figure-3a, Figure-4a” contain STEM images of CMPs-S, CMPs-M, CMPs-L, and CMPs-XL, respectively. The four samples were measured on a Mira3 system (TESCAN) operated at 30 kV and a working distance of 5 mm. Folders named “Figure-1e, Figure-1f” contain width and length data of CMPs-S, CMPs-M, CMPs-L, and CMP-XL, respectively. Folder named “Figure-1g” contains a picture (taken by a regular camera) of light passing through suspensions of CMPs-L, CMPs-M, CMPs-S, CMPs-XL (concentration is 0.1% in weight percentage) and water. Folder named “Figure-1h” contains the data for reflectance of the four CMP suspensions CMPs-S, CMPs-M, CMPs-L, and CMP-XL (0.1% in weight percentage), measured with an integrating sphere. Folder named “Figure 1-i” contains four text data files about the optical simulations of the scattering cross section of the four different CMP: CMPs-L, CMPs-M, CMPs-S, CMPs-XL. These four files were generated from the optical numerical simulations in Lumerical (a software using the finite difference time domain (FDTD) method), to process these data for the four types of CMPs by Origin software, we can get the cross-section curves of each CMPs.

2. Folder named “Figure-2” has four folders: folder named “Figure-2a” has a picture taken by a regular camera showing a typical white film (9 μm in thickness) made from CMPs-L particles. Folder named “Figure-2b” has a SEM image the cross section of the white film made with CMPs-L. SEM was operated at 5 kV and a working distance of about 6 mm. Folder named “Figure-2c” three folders named “CMPs-L-25, CMPs-M-25, CMPs-S-25” have files for reflectance data of white films made of CMPs-L, CMPs-M, and CMPs-S at the same thickness of 25 μm and ff = 25%, measured with an integrating sphere. Folder named “Figure-2d” has angular distribution data for CMPs-L films with two different thickness, which was recorded using a goniometer. The illumination angle was fixed at normal incidence and the angular distribution of intensity was acquired by rotating the detector arm around the sample with a resolution of 1°.

3. Folder named “Figure-3” has seven folders: folder named “Figue-3a” has a photograph (taken by a regular camera) of a high optical haze film (with 20% of CMPs-XL) on the background of a paper with printed letters. Folder name “Figure-3b” has a SEM image of the surface of a composite film with 20% CMPs-XL. SEM was operated at 5 kV and a working distance of about 6 mm. Folder named “Figure-3c” has a MATLAB data for transmittance and haze spectra of a composite film with 20% CMPs-XL, measured with an integrating sphere. Folder named “Figure-3d” has angular distribution data for the intensity (wavelength = 400 nm) transmitted through films (20% CMPs-XL and 30% CMPs-XL) made of CMPs-XL by goniometer measurement. Folders named “Figure-3f, Figure-3g” have the original pictures of transparent and haze films with laser passing through them, respectively.

4. Folder named “Figure-S-1” has a PPT file for the Schematic drawing for the experimental setup for haze measurements.

5. Folder named “Figure-S-2” has four excel files: width and length data for CMPs-S, CMPs-M, CMPs-L, and width and length data for haze fibers (CMPs-XL), respectively, data measured from STEM images.

6. Folder named “Figure-S-3” has simulated data for scattering strength of a Mie-Sphere plotted against the size ratio (radius/wavelength) according to Mie theory.

7. Folder named “Figure-S-4” has a folder named “Polar plots” with nine txt data files, for the numerical, three-dimensional, simulations of the single-particle properties of CMPs. Numerical FDTD simulations of the optical response of the generated structures were performed in Lumerical.

8. Folder named “Figure-S-5” has three txt files, one for optical simulations of scattering cross-section of traditional CNCs. Another two files for angular distribution of the scattered light (differential scattering cross section) for traditional CNCs. Numerical simulations of the optical response of the generated structures were performed in Lumerical.

9. Folder named “Figure-S-6” has a ppt file for the schematic drawing of the vacuum process of fabrication of free-standing films from cellulose particles.

10. Folder named “Figure-S-7” three folders: folder named “S7a” has a ppt file for the schematic drawing for the process for hydrophobic treatment of CMPs-L, and the formation a of films which were directly dried in the air. Folder named “S7b” has one SEM image of the cross-section of the hydrophobic CMPs-L films, and one image of the contact angle profile of water droplet on the surface of hydrophobic CMPs-L film. Folder named “S7b-spectra” have Matlab files for the data of reflectance of the hydrophobic CMPs-L films measured with an integrating sphere.

11. Folder named “Figure-S-8” has two folders: folder named “Figure-S8a and b” which has three folders, named “one, two, three-four”, they have MATLAB data for total transmission data for CMPs-L samples with ff=0.4 and different thickness (10, 15, 20 and 30 μm) measured with an integrating sphere, respectively. Folder named “Figure-S8c” has the data for the spectral dependency of the transport mean free path.

12. Folder named “Figure-S-9” has six folders: folder named “a, b, c, d” each has a SEM image for the cross-section of white films made of CMPs-L with ff=53% and thickness of 9 μm, and CMPs-L, CMPs-M, CMPs-S with the same thickness of 25 μm. SEM was operated at 5 kV and a working distance of about 6 mm. Folder named “e” has a MATLAB file for reflectance of white films made of CMPs-L with the thickness of 9 μm at ff=53% and 40%, measured with an integrating sphere. Folder named “f” has three MATLAB files of scan data (scan-1, scan-2, and scan-3), which provide the original white plot data for the films with two different filling fractions but at the same thickness, and also three data set for the film of L-CMP, M-CMP and S-CMP, all these have been descripted in the text file named “indication for white plot” and measured with an integrating sphere (Labsphere), each spectrum was recorded using an integration time equal to 3 s.

13. Folder named “Figure-S-10” has the simulated optical response data for the ensemble of CMPs-L, M, S with different filling fractions, and with various length and diameter.

14. Folder named “Figure-S-11” has a regular camera picture for a pure CMC film.

15. Folder named “Figure-S-12” has two folders “S12-1, S12-2” containing MATLAB data for total light transmittance and haze values of films with different content of CMPs-XL. All data were measured with an integrating sphere.

16. Folder named “Table-1” has two folders, containing the data for the dimensions of CMPs-S, CMPs-M, CMPs-L, and CMP-XL. Folder named “Thickness” has six SEM images of the cross section of the films for measuring the thickness of these four types of particles. Folder named “Length-Width” has four excel files with data for the width and length of these four types of CMPs, data were obtained with STEM, and these STEM images were shown in the four folders named “Figure -1a, 1b, 1c, 1d”.

17. Folder named “Table-2” has five folders, folder named “CMPs-L about 9 um” has a MATLAB file for total transmission data for CMPs-L films with 40% and 53% filling fraction at 9 μm in thickness, measured with an integrating sphere. Folders named “CMPs-S-25um, CMPs-M-25um, CMPs-L-25um” have MATLAB files for total transmission data for films made of CMPs-S, CMPs-M, CMPs-L at 25 μm thickness, measured with an integrating sphere.

“Figure-1”文件夹包含九个子文件夹：命名为“Figure-1a, Figure-2a, Figure-3a, Figure-4a”的文件夹分别包含CMPs-S, CMPs-M, CMPs-L, CMPs-XL的STEM图像。四个样品在Mira3系统（TESCAN）上测量，该系统工作在30 kV电压和5 mm的工作距离。命名为“Figure-1e, Figure-1f”的文件夹分别包含CMPs-S, CMPs-M, CMPs-L, CMPs-XL的宽度和长度数据。命名为“Figure-1g”的文件夹包含通过CMPs-L, CMPs-M, CMPs-S, CMPs-XL悬浮液（重量百分比浓度为0.1%）和水的光透射图片（由普通相机拍摄）。命名为“Figure-1h”的文件夹包含四种CMP悬浮液CMPs-S, CMPs-M, CMPs-L, CMP-XL（重量百分比为0.1%）的反射率数据，这些数据使用积分球进行测量。命名为“Figure 1-i”的文件夹包含关于四种不同CMP（CMPs-L, CMPs-M, CMPs-S, CMPs-XL）散射截面的光学模拟的四份文本数据文件。这四个文件由Lumerical（一款采用有限差分时域（FDTD）方法的软件）的光学数值模拟生成，通过Origin软件对这些四种类型的CMP数据进行处理，我们可以得到每种CMP的横截面曲线。

“Figure-2”文件夹包含四个子文件夹：命名为“Figure-2a”的文件夹包含一张由普通相机拍摄的典型白色薄膜（厚度为9 μm）的照片，该薄膜由CMPs-L粒子制成。命名为“Figure-2b”的文件夹包含由CMPs-L制成的白色薄膜的SEM图像。SEM操作电压为5 kV，工作距离约为6 mm。命名为“Figure-2c”的三个子文件夹“CMPs-L-25, CMPs-M-25, CMPs-S-25”包含由CMPs-L, CMPs-M, CMPs-S制成的白色薄膜（厚度为25 μm，ff为25%）的反射率数据文件，这些数据使用积分球进行测量。命名为“Figure-2d”的文件夹包含CMPs-L薄膜（两种不同厚度）的角分布数据，这些数据使用分光计记录，入射角固定为正常入射，通过旋转探测器臂围绕样品旋转，以1°的分辨率获取强度角分布。

“Figure-3”文件夹包含七个子文件夹：命名为“Figue-3a”的文件夹包含一张由普通相机拍摄的高光晕薄膜（背景为带有印刷文字的纸张，含有20%的CMPs-XL）的照片。命名为“Figure-3b”的文件夹包含含有20% CMPs-XL的复合薄膜表面的SEM图像。SEM操作电压为5 kV，工作距离约为6 mm。命名为“Figure-3c”的文件夹包含含有20% CMPs-XL的复合薄膜的透射率和光晕光谱的MATLAB数据，这些数据使用积分球进行测量。命名为“Figure-3d”的文件夹包含通过含有20% CMPs-XL和30% CMPs-XL的薄膜（波长=400 nm）传输的强度角分布数据，这些数据使用分光计测量。命名为“Figure-3f, Figure-3g”的文件夹分别包含通过激光穿过透明和光晕薄膜的原图片。

“Figure-S-1”文件夹包含用于光晕测量的实验装置示意图的PPT文件。

“Figure-S-2”文件夹包含四个Excel文件：分别包含CMPs-S, CMPs-M, CMPs-L和光晕纤维（CMPs-XL）的宽度和长度数据，这些数据是通过STEM图像测量的。

“Figure-S-3”文件夹包含Mie球散射强度与尺寸比（半径/波长）根据Mie理论绘制的模拟数据。

“Figure-S-4”文件夹包含一个名为“Polar plots”的子文件夹，其中包含九个txt数据文件，用于CMPs的单粒子属性的数值、三维模拟。在Lumerical中进行了生成结构的数值FDTD模拟，以获得这些结构的光学响应。

“Figure-S-5”文件夹包含三个txt文件，其中一个用于传统CNCs散射截面的光学模拟，另外两个文件用于传统CNCs散射光的角分布（微分散射截面）。在Lumerical中进行了生成结构的数值光学响应模拟。

“Figure-S-6”文件夹包含关于真空工艺制备纤维素颗粒自由-standing薄膜的示意图PPT文件。

“Figure-S-7”文件夹包含三个子文件夹：命名为“S7a”的文件夹包含用于CMPs-L亲水处理的工艺示意图和直接在空气中干燥的薄膜形成过程的PPT文件。命名为“S7b”的文件夹包含一张亲水CMPs-L薄膜横截面的SEM图像和一张水滴在亲水CMPs-L薄膜表面的接触角轮廓图。命名为“S7b-spectra”的文件夹包含使用积分球测量的亲水CMPs-L薄膜反射率数据的Matlab文件。

“Figure-S-8”文件夹包含两个子文件夹：命名为“Figure-S8a and b”的子文件夹包含三个子文件夹，分别命名为“one, two, three-four”，它们包含CMPs-L样品（ff=0.4）在不同厚度（10, 15, 20和30 μm）的总透射率数据，这些数据使用积分球进行测量。命名为“Figure-S8c”的文件夹包含传输平均自由程的谱依赖性数据。

“Figure-S-9”文件夹包含六个子文件夹：命名为“a, b, c, d”的子文件夹各包含一张由CMPs-L（ff=53%，厚度为9 μm）制成的白色薄膜的SEM横截面图像，以及CMPs-L, CMPs-M, CMPs-S（相同厚度为25 μm）的SEM横截面图像。命名为“e”的子文件夹包含厚度为9 μm，ff=53%和40%的CMPs-L薄膜的反射率MATLAB文件。命名为“f”的子文件夹包含三个扫描数据文件（scan-1, scan-2, 和 scan-3），它们提供了两种不同填充分数但相同厚度的薄膜的原白色图像数据，以及L-CMP, M-CMP和S-CMP的三个数据集，所有这些数据都已描述在名为“indication for white plot”的文本文件中，并使用积分球（Labsphere）测量，每个光谱都使用3秒的积分时间进行记录。

“Figure-S-10”文件夹包含不同填充分数、不同长度和直径的CMPs-L, M, S集的光学响应的模拟数据。

“Figure-S-11”文件夹包含纯CMC薄膜的普通相机照片。

“Figure-S-12”文件夹包含两个子文件夹“S12-1, S12-2”，其中包含不同含量CMPs-XL的薄膜的总透射率和光晕值的MATLAB数据。所有数据都是使用积分球测量的。

“Table-1”文件夹包含两个子文件夹，包含CMPs-S, CMPs-M, CMPs-L, CMP-XL的尺寸数据。命名为“Thickness”的子文件夹包含测量这四种类型粒子厚度的六张SEM横截面图像。命名为“Length-Width”的子文件夹包含四个Excel文件，包含这四种类型CMP的宽度和长度数据，这些数据是通过STEM获得的，并且这些STEM图像显示在四个名为“Figure -1a, 1b, 1c, 1d”的文件夹中。

“Table-2”文件夹包含五个子文件夹，命名为“CMPs-L about 9 um”的子文件夹包含CMPs-L薄膜（40%和53%填充分数，厚度为9 μm）的总透射率数据的MATLAB文件。命名为“CMPs-S-25um, CMPs-M-25um, CMPs-L-25um”的子文件夹包含由CMPs-S, CMPs-M, CMPs-L制成的薄膜（厚度为25 μm）的总透射率数据的MATLAB文件。