| Heat-treatment temperature/time | Average radius (nm) | Absorption peak position (nm) | Peak wavelength of photoluminescence (nm) | FWHM   (nm) |
| 465degC/20h                     | 1.7                 | 1028                          | 1386                                      | 290         |
| 480degC/20h                     | 2.3                 | 1305                          | 1500                                      | 264         |
| 495degC/20h                     | 2.6                 | 1435                          | 1580                                      | 264         |
| 510degC/20h                     | 3.1                 | 1638                          | 1787                                      | 389         |
| 495degC/5h                      | 2.2                 | 1276                          | 1499                                      | 266         |
| 495degC/10h                     | 2.3                 | 1305                          | 1536                                      | 247         |
| 495degC/15h                     | 2.4                 | 1363                          | 1570                                      | 255         |
| 495degC/30h                     | 2.8                 | 1525                          | 1785                                      | 383         |

Caption: Sizes and optical properties of PbSe QDs in borosilicate glasses.

You are provided with a table from a material science paper. Here are JSON templates for two types of numeric cells: "Other" and "Glass_Compound_Amount":
{"value": "xx", "type": "Other"}
{"value": "xx", "type": "Glass_Compound_Amount", "constituent": "xx", "unit": "xx", "material": "xx"}

Please describe all numeric cells in the above table following the JSON templates (proceeding by row in a left-right, top-down direction). For each cell, output one JSON description per line. For any unanswerable attributes in the templates, set their value to the placeholder "xx".

Cell Description:
{"value": "1.7", "type": "Other"}
{"value": "1028", "type": "Other"}
{"value": "1386", "type": "Other"}
{"value": "290", "type": "Other"}
{"value": "2.3", "type": "Other"}
{"value": "1305", "type": "Other"}
{"value": "1500", "type": "Other"}
{"value": "264", "type": "Other"}
{"value": "2.6", "type": "Other"}
{"value": "1435", "type": "Other"}
{"value": "1580", "type": "Other"}
{"value": "264", "type": "Other"}
{"value": "3.1", "type": "Other"}
{"value": "1638", "type": "Other"}
{"value": "1787", "type": "Other"}
{"value": "389", "type": "Other"}
{"value": "2.2", "type": "Other"}
{"value": "1276", "type": "Other"}
{"value": "1499", "type": "Other"}
{"value": "266", "type": "Other"}
{"value": "2.3", "type": "Other"}
{"value": "1305", "type": "Other"}
{"value": "1536", "type": "Other"}
{"value": "247", "type": "Other"}
{"value": "2.4", "type": "Other"}
{"value": "1363", "type": "Other"}
{"value": "1570", "type": "Other"}
{"value": "255", "type": "Other"}
{"value": "2.8", "type": "Other"}
{"value": "1525", "type": "Other"}
{"value": "1785", "type": "Other"}
{"value": "383", "type": "Other"}