Stuff how do solar cells actually was so hisself are mainly composed of silicone. Silicon asms have full electrons in the outer shell and are stable but then the silicon is split into 2 layers. Bosphorus is mixed into one like it has value electrons in its outer shell one too many which can orbit for. The 2nd layer is mixed with boron which has only 3 out electrons one to feel. That means the layer has gaps which attract the excess phosphorus electrons this creates a flow of negatively charged electrons from one layer to the other one layer loses electrons and becomes positive the other gains electrons and becomes negative creating 2 holes eventually all the gaps on the surface of the lay. Is occupied the holes and the electrons are now too far apart to migrate them with the sun comes in when some light hits the surface like energy splits off one electron making a hole under so close election. The electron is attracted to the positive and the hole goes another electron from another dow
To tomorrow today the science show on d w. Last. Stop how do solar cells actually but so hisself are mainly composed of silicon. Silicon atoms have full electrons in the outer shell and are stable but then the silicon misplaced into 2 layers. Bosphorus is mixed into one like it has 5 electrons in its outer shell one too many which can orbit freeney. The 2nd layer is mixed with boron which has only 3 out electrons one to feel. That means the layer has gaps which attract the excess phosphorus electrons this creates a flow of negatively charged electrons from one line to the other one layer loose. As electrons and becomes positive the other gains electrons and becomes negative create 2 poles eventually all the gaps on the surface of the layers are occupied the whole and the electrons are now too far apart to migrate with the sun comes in when some light hits the surface layer energy splits off one electron making a hold on to so close electron. The electron is attracted to the positive an
How do solar cells actually was surface else are mainly composed of silicone. Silicon asms have full electrons in their outer shell and are stable but then the silicone is split into 2 layers. Bosphorus is mixed into one like it has 5 electrons in its outer shell one too many which can orbit for. The 2nd layer is mixed with boron which has only 3 out electrons one to feel. That means the layer has gaps which attract the excess phosphorus electrons this creates a flow of negatively charged electrons from one layer to the other one layer loses electrons and becomes positive the other gains electrons and becomes negative creating 2 poles eventually all the gaps on the surface of. Is occupied the holes and the electrons are now to florida plant to migrate them with the sun comes in when some light hits the surface layer splits on one electron making a hold on to supply selection. The electron is attracted to the positive and the hole goes another electron from lower down to replace the one
Committee member and board president london breed to my left. Our clerk is ms. Erica major. Ms. Major do you have any announcements. Yes. Please silence all cell phones and electronic devices. All documents submitted to the clerk and items will be on the clerk and items will be on the october 18 board of supervisors agenda unless otherwise stated. Thank you. Could you please read the first item. Item 1 is a hearing to receive presentations from the citys external auditor Macias Gini Oconnell and kpmg llp. Thank you. Do we have a representative from the Controllers Office. Ms. Frank. Yes, good morning supervisors i am here to introduce the external auditors. First you will hear from m go and kpmg senior manager. Great and what is the status of the consolidated annual Financial Report . Hows that coming along . Eer. Starting the final phase right now and putting in adjustments so we dont have the Financial Statements together yet but anticipated it will be completed in november around th
Commissioner bustos is absent commissioner singh is absent commissioner mondejar madam chair rosales supervisors commissioner bustos and commissioner singh are absences and all other members of the commission are present the first order of business is announcements a the next relaying r regularly scheduled meeting at one p. M. Room 416 b please be advised the ringing of and use of cell phones, and use of cell phones, Electronic Devices are prohibited at this meeting. Please be advised that the chair may order the removal from the meeting room responsible for the ringing or use of a cell phone, pager, or other similar soundproducing Electronic Devices. C announcement of time alignment please be advised a member of the public has up to 3 minutes to address the commission unless the commission the Commission Adopts a shorter period on any item. It is strongly recommended that any member of the public wishes to address the commission fill out a speaker card and submit it to the commission