<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Saikia, Sajid</style></author><author><style face="normal" font="default" size="100%">Gopal, Animesh</style></author><author><style face="normal" font="default" size="100%">Rathod, Radha</style></author><author><style face="normal" font="default" size="100%">Joshi, Aprajita</style></author><author><style face="normal" font="default" size="100%">Priolkar, K. R.</style></author><author><style face="normal" font="default" size="100%">Saha, Surajit</style></author><author><style face="normal" font="default" size="100%">Santra, Pralay K.</style></author><author><style face="normal" font="default" size="100%">Shanmuganathan, Kadhiravan</style></author><author><style face="normal" font="default" size="100%">Nag, Angshuman</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Ultrabroad near infrared emitting perovskites</style></title><secondary-title><style face="normal" font="default" size="100%">Angewandte Chemie-International Edition</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2025</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JAN</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">64</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;Phosphor converted light emitting diodes (pc-LEDs) have revolutionized solid-state white lighting by replacing energy-inefficient filament-based incandescent lamps. However, such a pc-LED emitting ultrabroad near-infrared (NIR) radiations still remains a challenge, primarily because of the lack of ultrabroad NIR emitting phosphors. To address this issue, we have prepared 2.5 % W&lt;/span&gt;&lt;span style=&quot;box-sizing: border-box; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif;&quot;&gt;4+&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;-doped and 2.8 % Mo&lt;/span&gt;&lt;span style=&quot;box-sizing: border-box; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif;&quot;&gt;4+&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;-doped Cs&lt;/span&gt;&lt;span style=&quot;box-sizing: border-box; line-height: 0; position: relative; vertical-align: baseline; bottom: -0.25em; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif;&quot;&gt;2&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;Na&lt;/span&gt;&lt;span style=&quot;box-sizing: border-box; line-height: 0; position: relative; vertical-align: baseline; bottom: -0.25em; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif;&quot;&gt;0.95&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;Ag&lt;/span&gt;&lt;span style=&quot;box-sizing: border-box; line-height: 0; position: relative; vertical-align: baseline; bottom: -0.25em; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif;&quot;&gt;0.05&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;BiCl&lt;/span&gt;&lt;span style=&quot;box-sizing: border-box; line-height: 0; position: relative; vertical-align: baseline; bottom: -0.25em; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif;&quot;&gt;6&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;&amp;nbsp;perovskites emitting ultrabroad NIR radiation with unprecedented spectral widths of 434 and 468 nm, respectively. Upon band-edge excitation, the soft lattice of the host exhibits broad self-trapped exciton (STE) emission covering NIR-I (700 nm), which then nonradiatively excites the dopants. The&amp;nbsp;&lt;/span&gt;&lt;img alt=&quot;mathematical equation&quot; class=&quot;fallback__image&quot; src=&quot;https://onlinelibrary.wiley.com/cms/asset/cbbb8722-f036-4e98-91f1-f78348f240a5/anie202415003-math-0001.png&quot; style=&quot;box-sizing: border-box; border-style: none; max-width: 100%; vertical-align: middle; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;&amp;nbsp;–donor ligand Cl&lt;/span&gt;&lt;span style=&quot;box-sizing: border-box; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif;&quot;&gt;−&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;&amp;nbsp;reduces the energy of dopant&amp;nbsp;&lt;/span&gt;&lt;i style=&quot;box-sizing: border-box; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;d–d&lt;/i&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;&amp;nbsp;transitions emitting NIR-II with a peak at ~950 nm. Vibronic coupling broadens the dopant emission. The large spin-orbit coupling and local structural distortion might possibly enhance the dopant emission intensity, leading to an overall NIR photoluminescence quantum yield ~40 %. The composite of our ultrabroad NIR phosphors with biodegradable polymer polylactic acid could be processed into free-standing films and 3D printed structures. Large (170&lt;/span&gt;&lt;img alt=&quot;mathematical equation&quot; class=&quot;fallback__image&quot; src=&quot;https://onlinelibrary.wiley.com/cms/asset/62119a49-ef5d-4b17-a727-798978412727/anie202415003-math-0002.png&quot; style=&quot;box-sizing: border-box; border-style: none; max-width: 100%; vertical-align: middle; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;&amp;nbsp;170 &lt;/span&gt;&lt;img alt=&quot;mathematical equation&quot; class=&quot;fallback__image&quot; src=&quot;https://onlinelibrary.wiley.com/cms/asset/3d2c08c0-4ab8-436a-bc69-603df5328723/anie202415003-math-0003.png&quot; style=&quot;box-sizing: border-box; border-style: none; max-width: 100%; vertical-align: middle; color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-family: &amp;quot;Open Sans&amp;quot;, icomoon, sans-serif; font-size: 16px;&quot;&gt;&amp;nbsp;), robust, and thermally stable 3D printed pc-LED panels emit ultrabroad NIR radiation, demonstrating NIR imaging applications.&lt;/span&gt;&lt;/p&gt;
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