All articles starting with I
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III-V multijunction solar cell
A III-V multijunction solar cell stacks semiconductor junctions, typically gallium indium phosphide and gallium arsenide, that split the solar spectrum to reach record efficiencies. It powers most satellites.
III-V/Si solar cell
A III-V/Si solar cell is a tandem photovoltaic device stacking a III-V semiconductor top cell, such as GaAs, on silicon to convert more sunlight than either material alone.
III–VI semiconductors
III–VI semiconductors are compound semiconductors combining group III elements such as gallium and indium with chalcogens like sulfur and selenium, with many forming exfoliable layered crystals for 2D optoelectronics.
iio
iiO, formerly known as vaiio, is a New York-based dance music duo of producer Markus Moser and singer Nadia Ali, best known for the 2001 trance-pop single "Rapture", which reached number 2 in the UK.
Iio Sōgi
Iio Sōgi (飯尾宗祇, 1421–1502) was a Japanese master of renga, or linked verse, and the first of the professional renga masters of the late Muromachi period.
Iiro Pakarinen
Iiro Pakarinen, Finnish ice hockey forward (born 1991), HIFK Helsinki Liiga winger; 134 NHL games with Edmonton Oilers, Florida Panthers 2011 draft pick (184th), Olympic gold 2022 and two World Championship silvers with Finland.
IIT Bombay
IIT Bombay (भारतीय प्रौद्योगिकी संस्थान मुंबई), also called IITB, is an Indian Institute of Technology in Powai, Mumbai, established 1958 with UNESCO/USSR aid, a 200-hectare residential campus, and national-importance status since 1961.
IIT Delhi
IIT Delhi (भारतीय प्रौद्योगिकी संस्थान दिल्ली), founded 1961 at Hauz Khas, is one of India's 23 IITs, an Institution of Eminence, QS 2027 rank 118, with an Abu Dhabi international campus and over 60,000 alumni.
IIT Kanpur
IIT Kanpur (Indian Institute of Technology Kanpur), founded 2 November 1959, is a first-generation IIT in Uttar Pradesh shaped by the US-led Kanpur Indo-American Program; it pioneered the semester system, letter grading, and computer science education in India.
IIT Kharagpur (भारतीय प्रौद्योगिकी संस्थान खड़गपुर)
IIT Kharagpur (भारतीय प्रौद्योगिकी संस्थान खड़गपुर) is India's first Indian Institute of Technology, founded 1950 at the Hijli Detention Camp site in West Bengal, inaugurated 18 August 1951, made an institution of national importance by the 1956 Act.
IIT Madras
IIT Madras (Indian Institute of Technology Madras), Chennai institute of national importance founded 1959 with West German aid; NIRF #1 overall 2019–2025, 630-acre campus, 16 departments, major incubation and patent output.
IIT Roorkee (भारतीय प्रौद्योगिकी संस्थान रुड़की)
IIT Roorkee (भारतीय प्रौद्योगिकी संस्थान रुड़की) is a public technical university in Roorkee, Uttarakhand, India, that became the nation's seventh IIT on September 21, 2001.
IiTzTimmy
iiTzTimmy (Timothy An, born 2000) is an American Twitch streamer and retired Apex Legends pro, famous for a 54-hour solo Bronze-to-Predator stream, a top-four ALGS 2023 finish with The Dojo, and teams including 100 Thieves and NRG.
Iivo Niskanen
Iivo Niskanen (born 1992, Oulu) is a Finnish cross-country skier with five Olympic medals, three gold (team sprint 2014, 50 km 2018, 15 km 2022), and 2017 world 15 km classic title.
IIZ: Indian Institute of Zombies
IIZ: Indian Institute of Zombies is a 2026 Hindi horror-comedy, Kuku's first theatrical film, directed by Gaganjeet Singh and Alok Dwivedi, released 15 May 2026; campus toppers become zombies and backbenchers fight back; weak reviews and low box office.
Iizuka Shōkansai
Iizuka Shōkansai (飯塚 小玕斎, 1919–2004), real name Iizuka Shigetoshi, was a Japanese bamboo weaving artist named a Living National Treasure in 1982, the second bamboo artist so honored.
IJ (Amsterdam)
The IJ is Amsterdam's central waterway, once a Zuiderzee tidal bay, now running from the IJmeer to the North Sea Canal. Key facts: 1876 canal, GVB ferries, IJburg islands, IJmuiden salt management.
Ìjálá
Ìjálá is the hunters' chant of the Yoruba people of southwestern Nigeria, an oral praise poetry performed by hunters and devotees of Ògún, the god of iron.
Ijara (tax farming)
Ijara (اجاره) was Mughal tax farming: the right to collect land revenue was leased to a contractor who paid a fixed sum and kept the surplus.
Ijaw people
The Ijaw (Ijo, Izon) are the fourth largest ethnic group of Nigeria's Niger Delta, around 15 million people speaking the distinct Ijoid Izon language, known for 7,000 years of delta settlement and oil-related nationalism.
Ijaye War
The Ijaye War was a Yoruba civil war between Ibadan and Ijaye in present-day Oyo State, Nigeria, fought from 1860 to 1862 over the Oyo succession.
Ijaz Ahmed (اعجاز احمد) (cricketer, born 1968)
Ijaz Ahmed (born 1968, Sialkot), Pakistani right-hand batsman nicknamed the Axeman; 60 Tests (3,315 runs at 37.67) and 250 ODIs (6,564 runs), 1992 World Cup winner, later Pakistan U19 and BPL coach.
Ijazah
An ijazah (إجازة) is a signed authorization permitting a named student to transmit or teach a specific text, most prominently the Quran, backed by an unbroken chain of teachers.
Ijebu expedition
The Ijebu expedition was a British military campaign against the Ijebu kingdom of southern Nigeria in May 1892, in which Colonel F.C. Scott's force captured the capital, Ijebu Ode.
Ijebu Kingdom
The Ijebu Kingdom was a precolonial Yoruba state in southwestern Nigeria, ruled from Ijebu-Ode by the Awujale and centered on trade routes between Lagos and the interior.
Ijebu Ode
Ijebu Ode is a city in Ogun State, southwestern Nigeria, traditional seat of the Awujale, ruler of the precolonial Ijebu kingdom, and host of the Ojude Oba festival.
Ijen
Ijen, in Indonesian Gunung Ijen, is a volcanic complex in eastern Java, Indonesia, known for its turquoise acid crater lake, blue sulfur flames, and sulfur mining.
Ijen UNESCO Global Geopark
Ijen UNESCO Global Geopark, East Java, Indonesia (Geopark Ijen): 4,723 km² across Banyuwangi and Bondowoso; national geopark 2018, UNESCO designation 2023; home to Kawah Ijen, the world's most acidic crater lake, and its blue sulfur fire.
Ijeoma Opara
Ijeoma Opara is an associate professor of public health at the Yale School of Public Health who studies substance use and HIV prevention among urban youth of color.
IJsselmeer (landform)
The IJsselmeer is a large artificial freshwater lake in the central Netherlands, created in 1932 when the Afsluitdijk closed the Zuiderzee, making it the country's largest freshwater lake.