kurt lehovec pioneered:

' A key concept behind the monolithic IC is the principle of p–n junction isolation, which allows each transistor to operate independently despite being part of the same piece of silicon. Atalla's surface passivation process isolated individual diodes and transistors,[11] which was extended to independent transistors on a single piece of silicon by Kurt Lehovec at Sprague Electric in 1959,[12] and then independently by Robert Noyce at Fairchild later the same year.[13][14]'

https://en.m.wikipedia.org/wiki/Integrated_circuit

'1946 – Russell Ohl patented the modern junction semiconductor solar cell,[8] while working on the series of advances that would lead to the transistor.

1948 - Introduction to the World of Semiconductors states Kurt Lehovec may have been the first to explain the photo-voltaic effect in the peer reviewed journal Physical Review.[9][10]

1954 – The first practical photovoltaic cell was publicly demonstrated at Bell Laboratories.[11] The inventors were Calvin Souther Fuller, Daryl Chapin and Gerald Pearson.[12]'

https://en.m.wikipedia.org/wiki/Solar_cell

'Hungarian Zoltán Bay together with György Szigeti pre-empted LED lighting in Hungary in 1939 by patenting a lighting device based on SiC, with an option on boron carbide, that emitted white, yellowish white, or greenish white depending on impurities present.[18]

Kurt Lehovec, Carl Accardo, and Edward Jamgochian explained these first LEDs in 1951 using an apparatus employing SiC crystals with a current source of a battery or a pulse generator and with a comparison to a variant, pure, crystal in 1953.[19][20]

Rubin Braunstein[21] of the Radio Corporation of America reported on infrared emission from gallium arsenide (GaAs) and other semiconductor alloys in 1955.[22] Braunstein observed infrared emission generated by simple diode structures using gallium antimonide (GaSb), GaAs, indium phosphide (InP), and silicon-germanium (SiGe) alloys at room temperature and at 77 kelvins.'

https://en.m.wikipedia.org/wiki/Light-emitting_diode

'He first predicted the important case of fast ionic conduction in solid states as one in a surface space-charge layer of ionic crystals in the paper, “Space-charge layer and distribution of lattice defects at the surface of ionic crystals” ( J. Chem. Phys. 1953. V.21. P.1123 -1128). As a space-charge layer has nanometer thickness, the effect is directly related to nanoionics (nanoionics-I). The Lehovec’s effect had given a basis for a creation of multitude nanostructured fast ion conductors which is used in modern portable lithium batteries and fuel cells. He is a Professor Emeritus at the University of Southern California in Los Angeles, California.'

https://www.ithistory.org/honor-roll/professor-kurt-lehovec

'Electron Theory' By Vennie Edwards (pages 230-231) states an important prediction of fast ionic conduction in a surface space charge layer of ionic crystals by Kurt Lehovec, called 'Lehovec's Effect' is used as a basis for developing nano-materials for portable lithium batteries and fuel cells.

https://en.m.wikipedia.org/w/index.php?title=History_of_the_battery#Lithium_and_lithium-ion_batteries

https://tinyurl.com/y64lhvwp

sue

post link: https://tinyurl.com/yxzrgsno

so when i was about 10 or 11 i had a crush on my sister's friend who was like 17 and i thought it would be harmless and nice if i went up and told her i liked her...but instead of smiling she frowned and said i had to meet her dad

so now i see that i was maybe some kind of a security risk because her dad was kurt lehovec who pioneered the computer chip, lithium battery, solar panel and l e d among other technologies

but at least i got to meet mr lehovec who seemed like a genuinely nice person, as was his daughter, who was really pretty (and apparently still is), AND she wore glasses which we now realize through science, drives men wild

that really adds some zing to your life when you're trying to write a great science fiction story

i remember wanting to go to u s c when i was in high school i thought because i always liked their marching band with the sunglasses and everything but i had forgotten when i was much older of my sister telling me sue had been accepted there

sue went to u s c and shortly after her dad moved to los angelas too and life went on

but try as i might i couldn't find sue online until this just now:

''Kurt Lehovec had a background in physics and material science. European-born, he passed his passion for the sciences onto his daughter Susan.

The two played chess together, and the conversations often turned to the sciences.

Susan, who eventually became Susan Maher, found the conversations engaging. After all, it stirred her curiosity in understanding how things worked...'

read more at horiba

kurt lehovec wiki

like father like daughter: sue lehovec maher

'Kurt Lehovec had a background in physics and material science. European-born, he passed his passion for the sciences onto his daughter Susan.

The two played chess together, and the conversations often turned to the sciences.

Susan, who eventually became Susan Maher, found the conversations engaging. After all, it stirred her curiosity in understanding how things worked.

“I can always remember being interested in why things were the way they were in nature,” she said. “My father was a scientist and he really encouraged that in me. Growing up, at his direction my mother would buy me science kits to grow things, chemistry projects or biology projects at home.”

Maher carried that interest into high school, where she took advanced placement classes in science and math.

“I had fun with them,” she said.

Her father was always against Maher pursuing biology. He wanted her to follow a course in the hard sciences, where there was more certainty and no “mutations,” as Maher called it.

Circumstances would shape her destiny. When she went to college at the University of Southern California, Maher was unsure of if she wanted to major in math or physics. The school, she said, had weak departments in both subjects, so she chose chemistry.

Maher would go on and earn her Ph.D. from Princeton University in surface chemistry.

After Princeton, Maher was hired by Riber, a division of Jobin Yvon, a company HORIBA Scientific would eventually acquire. She was an applications scientist - a scientist familiar with technique of an instrument. They can demonstrate the instrument with a client’s samples to show how it would perform for their applications.

“I had a lot of friends in graduate school who went on to teach and be at universities,” she said. “That never interested me. I always wanted to learn more. I came here to be an applications scientist and probably the others did as well, because here you don't become a specialist in one little narrow area. You learn a lot about all sorts of different things going on in your field. I attended many conferences, met with a lot of people and learned about their applications.”

When that division was sold off, she was given the option to move to Texas to continue in her position. She and her family opted to stay where they were.

“I did freelance sales for surface analysis companies or five or seven years,” Maher said. “Along the way I got approached by the Raman division of Jobin Yvon, to see whether I would be willing to sell some of their equipment. I said, okay.”

She did that for a couple of years until Jobin Yvon asked if she would work for the company again, doing direct sales. Maher returned to the company to work in the Raman division. Surface analysis was, for the time being, in her past.

She worked in the Raman division for years, then in thin films and Raman until she was dedicated to thin films. HORIBA acquired Jobin Yvon and she’s been with the company for an accumulated 25 years, give or take a year. Maher eventually moved to the Original Equipment Manufacturer (OEM) division of HORIBA.

Today, as the OEM Accounts Manager with HORIBA Scientific, she works with customers and their current projects. In one, she’s working with a manufacturing company to orchestrate the materials flow to the company to avert production hold-ups.

Maher’s maternal grandmother earned her Ph.D. in Germany before 1900.

“She was really an odd ball, she would tell me,” Maher said.

An oddball as a woman in a male-dominated subculture in a point in history just preceding the suffragette movement. But not Maher. She’s never felt the slightest discomfort in being a woman scientist.

She tells people to follow their passions as she did.

“You'll spend most of your life pursuing whatever career you choose early on,” she said. “And if you have to spend at least eight hours every day of every week day doing something you hate, you're going to have a miserable life. So don't care what anybody else says. Do what you want to do.”'

For more information on OEM, visit the OEM section of our website,contact Susan Maher at. Susan.Maher@horiba.com.

https://www.horiba.com/en_en/women-in-science/her-fathers-daughter

https://tinyurl.com/y5te7amh