编辑“︁硒”︁（章节）

=== 其它用途 ===
製造橡膠中的{{link-en|硫磺硫化|Sulfur vulcanization}}過程所使用的催化劑，可用少量有機硒化合物來改進。<ref name="Naumov"/>

電子業對硒的需求正在減少。<ref name="Naumov"/>它的[[光電|太陽能光電]]和[[光電導效應]]仍可用於[[影印機]]、<ref>{{cite journal|doi =10.1080/03086648808079729|title =Application of Selenium-Tellurium Photoconductors to the Xerographic Copying and Printing Processes|date =1988|last1 =Springett|first1 = B. E.|journal =Phosphorus and Sulfur and the Related Elements|volume =38|issue =3–4|pages =341–350}}</ref><ref>{{cite book|url =https://books.google.com/books?id=y1BuoXpPX3kC&pg=PA547|pages =547–548|title =Computer Systems Architecture: A Networking Approach|isbn =978-0-321-34079-5|last =Williams|first =Rob|date =2006|publisher =Prentice Hall|access-date =2019-08-10|archive-date =2020-03-21|archive-url =https://web.archive.org/web/20200321014013/https://books.google.com/books?id=y1BuoXpPX3kC&pg=PA547|dead-url =no}}</ref><ref>{{cite book|chapter-url =https://books.google.com/books?id=y8U4HGZP_O0C&pg=PA81|pages =81–83|chapter =The Laser Printer|publisher =Wiley-VCH|title =Lasers|isbn =978-3-527-64005-8|last1 =Diels|first1 =Jean-Claude|last2 =Arissian|first2 =Ladan|date =2011|access-date =2019-08-10|archive-date =2020-03-16|archive-url =https://web.archive.org/web/20200316174655/https://books.google.com/books?id=y8U4HGZP_O0C&pg=PA81|dead-url =no}}</ref><ref>{{cite book|url =https://books.google.com/books?id=BiOxDxNMeyoC&pg=PA3|pages =3–5|publisher =Springer|title =Organic Electronics|isbn =978-3-642-04537-0|author =Meller, Gregor|author2 =Grasser, Tibor|last-author-amp =yes|date =2009|access-date =2019-08-10|archive-date =2020-03-09|archive-url =https://web.archive.org/web/20200309052042/https://books.google.com/books?id=BiOxDxNMeyoC&pg=PA3|dead-url =no}}</ref><!--The use of tellurium doped selenium was first challenged by amorphous silicon and now organic photosensitive polymeres took over making the selenium drums obsolete technology.--> [[光感測器|光電池]]、[[測光表|照度計]]和[[太陽能電池]]。它在單純複印紙的機器中作為光電導體的用途，曾經是主要的應用，但在20世紀的80年代，隨著越來越多的複印機轉成使用有機光電導體，光電導體的應用下降（儘管這仍然是一個大量的最終用途）。雖然曾經被廣泛使用，{{link-en|硒整流器|Selenium rectifier}}大部分已被基於矽的整流器取代（或正在被替換）。最值得注意的例外是直流電源[[浪涌保护器]]，其中硒抑制器的卓越能量耐受力，使其比金屬氧化物型的[[變阻器|壓敏電阻]]更適用。

[[硒化鋅]]是藍光[[發光二極體]]（LED）的第一種材料，但現在[[氮化鎵]]佔據了市場的主導地位。<ref>{{cite book|chapter-url= https://books.google.com/books?id=D2zyNlMu7kkC&pg=PA57|page= 57|chapter= The birth of the Blues|first= Dennis|last= Normile|title= Popular Science|date= 2000|access-date= 2019-08-10|archive-date= 2020-03-21|archive-url= https://web.archive.org/web/20200321184153/https://books.google.com/books?id=D2zyNlMu7kkC&pg=PA57|dead-url= no}}</ref>硒化鎘曾是[[量子點]]中的重要成分。在{{link-en|X射線照術|Xeroradiography}}和固態平板X射線照相機中，無晶質的硒片被用來將[[X射線]]影像轉換為電荷分佈圖。<ref>{{cite journal|doi= 10.1002/pssb.200982007|title= Amorphous selenium and its alloys from early xeroradiography to high resolution X-ray image detectors and ultrasensitive imaging tubes|date= 2009|last1= Kasap|first1= Safa|last2= Frey|first2= Joel B.|last3= Belev|first3= George|last4= Tousignant|first4= Olivier|last5= Mani|first5= Habib|last6= Laperriere|first6= Luc|last7= Reznik|first7= Alla|last8= Rowlands|first8= John A.|journal= Physica Status Solidi B|volume= 246|issue= 8|pages= 1794–1805|bibcode= 2009PSSBR.246.1794K |display-authors=3}}</ref>游離硒（Se<sup>24+</sup>）是X射線雷射中使用的活性介質之一。<ref>{{Cite book|title=Principles of LASERs fourth ed|url=https://archive.org/details/principlesoflase0000svel_u3g5|last=Svelto|first=Orazio|publisher=Plenum|year=1998|isbn=978-0-306-45748-7|location=|pages=[https://archive.org/details/principlesoflase0000svel_u3g5/page/457 457]|via=}}</ref>

硒是一些化學反應中的催化劑，但由於毒性問題，它沒有被廣泛使用。在[[X射線結晶學|X射線晶體學]]中，摻入一個或多個硒原子代替硫，有助於多波長反常色散和{{link-en|單波長反常色散| Single-wavelength anomalous diffraction}}的定相。<ref>{{cite journal|doi= 10.1098/rspa.1993.0087|title= New Techniques of Applying Multi-Wavelength Anomalous Scattering Data|date= 1993|last1= Hai-Fu|first1= F.|last2= Woolfson|first2=M. M.|last3= Jia-Xing|first3= Y.|journal= Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences|volume= 442|issue= 1914|pages= 13–32|bibcode= 1993RSPSA.442...13H }}</ref>

硒用於{{link-en|照相印刷品的調色|Photographic print toning}}，並且由許多攝影製造商作為色劑出售。硒增強並擴展了黑白攝影圖像的色調範圍，並提高了列印的持久性。<ref>{{cite journal|doi= 10.1021/ed014p31|title= A project for general chemistry students: Color toning of photographic prints|url= https://archive.org/details/sim_journal-of-chemical-education_1937-01_14_1/page/31|date= 1937|last= MacLean|first= Marion E.|journal= Journal of Chemical Education|volume= 14|issue= 1|page= 31|bibcode= 1937JChEd..14...31M }}</ref><ref>{{cite journal|jstor=3180042|title=Differences in Image Tonality Produced by Different Toning Protocols for Matte Collodion Photographs|last=Penichon |first=Sylvie |journal=Journal of the American Institute for Conservation|volume= 38|issue= 2|date= 1999|pages= 124–143|doi=10.2307/3180042}}</ref><ref>{{cite book|url= https://books.google.com/books?id=q2tF_t2yft0C&pg=PA176|page= 176|publisher= Delmar|title= Exploring Basic Black & White Photography|isbn= 978-1-4018-1556-1|last= McKenzie|first= Joy|date= 2003|access-date= 2019-08-10|archive-date= 2020-05-02|archive-url= https://web.archive.org/web/20200502075637/https://books.google.com/books?id=q2tF_t2yft0C&pg=PA176|dead-url= no}}</ref>

硒-75在工業射線照相中用作加馬射線源。<ref>{{cite news |url=http://www.ndt.net/article/apcndt2006/papers/12.pdf |title=Radiography of Welds Using Selenium 75, Ir 192 and X-rays |last1=Hayward |first1=Peter |last2=Currie |first2=Dean |accessdate=2019-08-10 |archive-date=2019-05-30 |archive-url=https://web.archive.org/web/20190530065256/https://www.ndt.net/article/apcndt2006/papers/12.pdf |dead-url=no }}</ref>